CN100531901C - Preparation method of high-activity nanocrystalline platinum carbon catalyst - Google Patents
Preparation method of high-activity nanocrystalline platinum carbon catalyst Download PDFInfo
- Publication number
- CN100531901C CN100531901C CNB2008100312559A CN200810031255A CN100531901C CN 100531901 C CN100531901 C CN 100531901C CN B2008100312559 A CNB2008100312559 A CN B2008100312559A CN 200810031255 A CN200810031255 A CN 200810031255A CN 100531901 C CN100531901 C CN 100531901C
- Authority
- CN
- China
- Prior art keywords
- platinum
- catalyst
- preparation
- carbon catalyst
- solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Catalysts (AREA)
Abstract
A preparation method of a high-activity nanocrystalline platinum carbon catalyst comprises the steps of preparation of a platinum complex, adsorption of the platinum complex, preparation of a reducing agent, microwave reduction, drying and the like. The high-activity nanocrystalline platinum carbon catalyst prepared by the method solves the problems that the granularity and the dispersity of platinum are difficult to effectively control by the traditional precipitation method and the traditional impregnation method, the repeatability of a batch of catalyst is poor, the active component of the prepared catalyst is wide in particle range, large in particle size, uneven in distribution, low in dispersity and poor in stability, the nanocrystalline platinum sol catalyst is not easy to separate from a product, and is easy to agglomerate and low in repeated application frequency in use, and the like, and the particle size distribution and the particle size similar to those of the nanocrystalline platinum sol catalyst are maintained. The high-activity nanocrystalline platinum carbon catalyst prepared by the method has better dispersity of active component nanocrystalline platinum particles, and shows higher catalytic activity, better selectivity and longer service life in catalytic reaction.
Description
Affiliated technical field
The present invention relates to a kind of preparation method of nano-crystalline platinum carbon catalyst.
Background technology
Nanocrystalline platinum carbon catalyst is a kind of loaded catalyst.The tradition precipitation method and immersion process for preparing loaded catalyst technology stability and repeatability are not good enough, production procedure is longer, consume more, operating influence factor complexity, the platinum carbon catalyst that makes exist that the active component granulometric range is wide, particle diameter is big, skewness, decentralization are low, repeat to apply mechanically that number of times is few, the hydrogenated products yield is low and shortcoming such as accessory substance height.
Distribution of particles, particle diameter and the decentralization of the tradition precipitation method and catalyst prepared be subjected to carrier batch and complicated factors such as the concentration of the concentration of the speed of the temperature of preliminary treatment, reaction, stirring, reaction system, reducing agent and kind thereof influence.In the Preparation of catalysts process, the formation of active component is in liquid phase or carrier surface carries out.When active component platinum nucleus formed on carrier surface, the platinum nucleus will be grown up on carrier, be reunited, and the granularity of platinum and decentralization are difficult to effective control, batch catalyst poor repeatability.Prepared activity of such catalysts component particles scope is wide, particle diameter is big, skewness, decentralization are low, stability and reappearance are not good enough, is difficult to prepare the nanocrystalline platinum carbon catalyst of high activity high dispersive.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of nano-crystalline platinum carbon catalyst.This method has fast, energy-saving and environmental protection, be easy to control, good stability, the active component granulometric range is narrow, particle diameter is little, be evenly distributed, high dispersive, repeat to apply mechanically number of times and reach 80-280 time, hydrogenated products yield height, accessory substance is low and save advantage such as resource.
In order to achieve the above object, technical scheme of the present invention is following design:
A kind of preparation method of nano-crystalline platinum carbon catalyst is characterized in that: follow these steps to carry out:
One, the preparation of platinum complex
With keto-alcohol mixed solvent dissolving platinum tetrachloride PtCl
4Behind the powder, under 20-55 ℃ of temperature conditions, handle 20-90min with ultrasonic wave, wherein:
Above-mentioned ultrasonic energy is controlled at 1-10W/cm
2Between,
Above-mentioned keto-alcohol mixed solvent be alcoholic solvent and ketone solvent in the formulated keto-alcohol mixture of the ratio of 1:1, wherein, ketone solvent is an acetone solvent; Alcoholic solvent is that one or more components in methyl alcohol, propane diols, polyvinyl alcohol, the ethylene glycol are in the formulated solvent of arbitrary volume ratio.
Keto-alcohol mixed solvent and platinum tetrachloride PtCl
4The configuration proportion criterion calculation of pressing platinum complex concentration 0.01-5mol/L,
Two, the absorption of platinum complex
The platinum complex dipping that makes in the step () is adsorbed onto on the carrier charcoal, uses the infrared ray vacuum drying to constant weight,
Wherein, adsorption temp 20-50 ℃, adsorption time 2-12h, baking temperature 50-120 ℃
Three, the preparation of reducing agent
Reducing agent is the formulated mixture of one or more components of formaldehyde, formic acid, methyl alcohol, hydrazine hydrate, sodium borohydride, and PH is 4-12, and concentration is 0.02-2mol/L,
Four, microwave reduction, drying
The reducing agent of preparation is in advance joined in the carrier charcoal that carries platinum, and through microwave reduction, adding the load capacity that ethanol water dilution, dispersion, filtration, washing and microwave drying makes platinum again is the brilliant platinum carbon catalyst of loaded nano of the high dispersive of 0.5-50%, wherein:
The frequency of microwave is that 2.45GHZ, power are 100-700W, and reduction temperature is 20-90 ℃, and the recovery time is 30 seconds-30 minutes, and adding the water-reducible multiple of ethanol is 3-7 times, and jitter time is 1-8 hour, and baking temperature is 35-55 ℃, and the time is 1-5min.
Wherein reducing agent calculates by the consumption that 1 gram platinum adds the 0.1-70 milliliter.
The nano-crystalline platinum carbon catalyst of the inventive method preparation, the granularity and the decentralization that have not only solved traditional precipitation method and infusion process platinum are difficult to effective control, batch catalyst repeatability is not good enough, prepared activity of such catalysts component particles wide ranges, particle diameter are big, skewness, decentralization are low, poor stability and nanocrystalline platinum colloidal sol catalyst are difficult for separating with product, easily reunite during use and repeat to apply mechanically problems such as number of times is few, and kept the particle diameter similar to distribute and particle size to nanocrystalline platinum colloidal sol catalyst.The nano-crystalline platinum carbon catalyst of the inventive method preparation, the nanocrystalline platinum grain decentralization of active component is better, shows higher catalytic activity, better choice and longer service life in catalytic reaction.
The present invention is applied to prepare loaded catalyst under given conditions with infra-red drying and micro-wave dielectric heating technique first.This method has fast, energy-saving and environmental protection, be easy to control, good stability, the active component granulometric range is narrow, particle diameter is little, be evenly distributed, high dispersive, apply mechanically number of times up to 80-280 time, hydrogenated products yield height, accessory substance is low and save advantage such as resource.
1, the inventive method efficiently solves granularity and decentralization and is difficult to the effectively difficult problem of control.Utilize the heat absorption of infrared radiation drying technology and carrier charcoal and the reducing property of himself, the platinum complex that is adsorbed in carrier carbon surface is decomposed into the oxide and the metal platinum of platinum and is anchored on the charcoal carrier, make the brilliant platinum carbon catalyst of high activity high-dispersion nano through microwave liquid-phase reduction drying more subsequently.Thereby efficiently solve platinum complex or chloroplatinic acid directly reduces in liquid phase, the platinum nucleus is grown up, is reunited at carrier surface, and the granularity of platinum and decentralization are difficult to the effectively difficult problem of control.The transmission electron microscope picture of 3% nanocrystalline platinum carbon catalyst of employing the present invention preparation as Figure 1-3.Can see that the platinum nano-crystalline granule is evenly distributed on the carrier carbon surface very much, particle diameter is less than 1.9 nanometers.Its mechanism is as follows:
At first platinum complex is anchored on carrier carbon surface with the form of the oxide of platinum, sees chemical equation (1),
Pt
+4+x/2O
2＝PtO
x+Cl
-1 (x＝1～2) (1)
The reproducibility that has of carrier charcoal itself meanwhile, the oxide of part platinum can be reduced into nanometer platinum crystal grain, sees chemical equation (2).
PtO
x+C+O
2＝Pt+xCO
2 (2)
Again through microwave liquid-phase reduction, PtO
xThe reducing agent of being prepared in advance thoroughly is reduced into nanometer platinum crystal grain, sees chemical equation (3).
PtO
x+ in advance the preparation reducing agent=Pt+Y+xH
2O (3)
The oxide of the platinum that above-mentioned chemical reflection formula (1) forms will be anchored on the carrier securely, thereby efficiently solve traditional precipitation method and infusion process platinum complex or chloroplatinic acid in liquid phase, reduce the migration of caused nucleus, reunite, particle diameter is grown up, granularity and decentralization are difficult to the effectively difficult problem of control, have overcome effectively that the active component particle diameter is big, skewness, specific area is little and catalytic activity is low shortcoming.The control of active component particle size, distribution of particles and decentralization can be controlled by fixing step and the infrared radiation heating program of platinum complex on carrier.This law can prepare load capacity 50% with interior nanocrystalline platinum carbon catalyst, and catalyst has that high activity, active component are uniformly dispersed, particle diameter is less than characteristics such as 3.5 nanometers and particle distribution range be narrow.
2, this method applied microwave dielectric adds thermal reduction and dry catalyst to have speed fast, efficient energy-saving, and homogeneous heating, technology advanced person is easy to control, the characteristics that Environmental Safety is harmless.
The micro-wave dielectric heating technique be utilize electromagnetic wave energy transmission to heating object inside, the heating of material from material molecule, is called " interior heating " again.Microwave is owing to have high frequency characteristics, and it changed with the billions of inferior surprising speed of the per second cycle of carrying out, and the polar molecule in the material has absorbed after the microwave energy, and they are the trend that directionality is arranged under the effect of microwave, changed its original molecular structure.When direction of an electric field changes, also do electric polarity motion, will cause the rotation of molecule, cause intermolecular frequent impact and produced a large amount of frictional heat with same speed, form with heat shows in material inside, thus cause material at short notice temperature raise rapidly, heat.
(1) micro-wave dielectric adds thermal reduction and dry catalyst speed is fast.The heating using microwave reduction is with dry different fully with the dry catalyst mode with the traditional heating reduction, and it is to make to be reduced with dried material itself to become heater, does not need heat conducting process.Therefore, micro-wave dielectric adds thermal reduction and dry catalyst can reach heating-up temperature in the short time at the utmost point.
(2) efficient energy-saving.Contain polar substance because of being reduced with dry catalyst, they easily absorb microwave and generate heat, and except that a small amount of loss, almost do not have other loss, so thermal efficiency height, energy-conservation.
(3) homogeneous heating.Regardless of the catalyst shape that is reduced and is dried, all can make while uniformly penetrating electromagnetic wave in the material table, heating uniformity is good, scorched outside and underdone inside phenomenon can not occur.
(4) technology advanced person is easy to control.Micro-wave dielectric adds thermal reduction and dry catalyst needs only the control microwave power and the activity duration can realize heating immediately or stopping, and uses microcomputer and can realize automation control.
(5) Environmental Safety is harmless.Because microwave energy is controlled in the stainless steel furnace chamber and microwave catheter in work, be difficult for leaking, do not have radiological hazard and noxious gas emission, do not produce waste heat and dust pollution: pollution products neither, also free from environmental pollution.
3, the brilliant platinum carbon catalyst of the loaded nano of this method preparation has fast, good stability, the active component granulometric range is narrow, particle diameter is little, be evenly distributed, high dispersive, apply mechanically number of times and reach characteristics such as 80-280 time, hydrogenated products yield height and accessory substance are low.
(1) the fast approximately 8-240 of the more conventional heating of formation microwave method of nano particle doubly.Microwave method prepares nanocrystalline platinum carbon catalyst 1-30min to be finished, and conventional heating needs 240min just can finish.
(2) the average grain diameter microwave method of active constituent is stable, and relative standard deviation is less.
Contrast and experiment
Annotate: relative standard deviation is measuring of particle size uniformity
(3) average grain diameter of product active constituent platinum of the present invention is the 1.71-1.9 nanometer, is shaped as sphere, has high specific area and narrow particle diameter distribution, does not have agglomeration, has filled up the blank of the nanocrystalline platinum charcoal of domestic 1-2 large-scale production.Microwave heating effect is not to obtain indirectly through conduction of other medium heats or thermal convection current, but directly from the inside to the outside, self synchronous pyrogenicity, make platinum particles that violent warm-up movement take place, reduce active force between platinum particles, avoided platinum particles to reunite, kept the little advantage of its particle diameter.
(4) catalyst hydrogenated products yield height, the accessory substance of the inventive method preparation are low, and repeating to apply mechanically number of times can reach 80-280 time.
(a) catalyst hydrogenation catalyst o-nitrochlorobenzene under alkali condition of making of the present invention, the yield of intermediate products 2.2-dichlorohydrazobenzene DHB is 97%, final products 3, the total recovery of 3-dichloro-benzidine DCB reaches 87%, repeats to apply mechanically more than 80 times.Under similarity condition, with Korea S's import catalyst hydrogenation catalysis o-nitrochlorobenzene, the yield of DBH is 95%, and the total recovery of DCB is 83%, repeats to apply mechanically 78 times.Under similarity condition, with homemade follow-on palladium carbon catalyst hydrogenation catalyst o-nitrochlorobenzene, the total recovery of DCB is 65%.In sum, the catalyst that the present invention makes is the hydrogenation catalyst o-nitrochlorobenzene under alkali condition, and the product yield occupies leading domestic and advanced international standard.
(b) catalyst that makes of the present invention is applied to synthetic isopropyl methoxalamine, and product yield 99.5%, catalyst repeat to apply mechanically average out to 280 times, occupy first place in the world.
(c) catalyst that makes of the present invention is applied to synthetic Pendimethalin, and product yield 99.6%, catalyst repeat to apply mechanically average out to 120 times.
(d) the catalyst hydrogenation N-isopropyl parachloroanilinum that makes of the present invention, target product kills the yield 99.2% of barnyard grass spirit, and catalyst repeats to apply mechanically average out to 96 times.
(e) selectivity of hydrogenation chloro aminobenzen.The catalyst that the present invention makes reaches 99.9% to hydrogenation chloro aminobenzen selectivity, and the import catalyst is 99.5%.
(f) catalyst that makes of the present invention is 97.6% to the solid choosing that the asymmetric hydrogenation of pyruvic acid fat obtains the lactic acid formicester to fraction values.
(g) the selective hydration table of unsaturated aldehyde
The selective hydration contrast and experiment of unsaturated aldehyde
| The reaction classification | The catalyst that the present invention makes | Traditional catalyst |
| Hydrogenation on cinnamic aldehyde | The cinnamyl alcohol selectivity is 95.7% | The selectivity 86% of cinnamyl alcohol |
| The citronellal hydrogenation | The selectivity of citronellol is 96.5% | The selectivity of citronellol is 75% |
| The helional hydrogenation | The selectivity 92% of new piperonyl alcohol | The selectivity of new piperonyl alcohol is 79% |
The above table explanation: the catalyst that the present invention makes is much higher than traditional catalyst to the selectivity of aldehyde hydrogenation reaction synthol.
4, the brilliant platinum carbon catalyst of the loaded nano of this method preparation has increased substantially the utilization rate of platinum and has reduced the consumption of platinum.
Product of the present invention is shaped as sphere because of the average grain diameter of its active component is little to the 1.71-1.9 nanometer except that being applied to above-mentioned catalytic hydrogenation, have high specific area.The catalyst that the present invention makes is expected in medicine, agricultural chemicals and spices intermediate catalytic hydrogenation to substitute 5% platinum carbon catalyst of homemade conventional method preparation.The utilization rate that the catalyst that adopts the present invention to make substitutes traditional catalyst platinum improves 40%, and the per kilogram catalyst can reduce consumption 20 grams of platinum, reduces production costs more than 7400 yuan.
In sum.This method utilizes infrared radiation drying technology and micro-wave dielectric to add the brilliant platinum carbon catalyst of loaded nano of hot preparation, its course of reaction and drying steps are quick, technology stability is good, be easy to control, efficient energy-saving, homogeneous heating, Environmental Safety is harmless, the active component granulometric range is narrow, particle diameter is little, be evenly distributed, high dispersive, apply mechanically number of times and reach 80-280 time, hydrogenated products yield height, and accessory substance is low and save advantage such as resource.
Description of drawings
Fig. 1, Fig. 2 are the nanocrystalline platinum carbon catalyst Electronic Speculum figure of the present invention's preparation.
Fig. 3 is the Electronic Speculum figure of the nanocrystalline platinum carbon catalyst of Korea S's import
The specific embodiment
A kind of preparation method of nano-crystalline platinum carbon catalyst is characterized in that: follow these steps to carry out:
One, the preparation of platinum complex
With keto-alcohol mixed solvent dissolving platinum tetrachloride PtCl
4Behind the powder, under 20-55 ℃ of temperature conditions, handle 20-90min with ultrasonic wave, wherein:
Above-mentioned ultrasonic energy is controlled at 1-10W/cm
2Between,
Above-mentioned keto-alcohol mixed solvent be alcoholic solvent and ketone solvent in the formulated keto-alcohol mixture of the ratio of 1:1, wherein, ketone solvent is an acetone solvent; Alcoholic solvent is that one or more components in methyl alcohol, propane diols, polyvinyl alcohol, the ethylene glycol are in the formulated solvent of arbitrary volume ratio.
Keto-alcohol mixed solvent and platinum tetrachloride PtCl
4The configuration proportion criterion calculation of pressing platinum complex concentration 0.01-5mol/L,
Two, the absorption of platinum complex
The platinum complex dipping that makes in the step () is adsorbed onto on the carrier charcoal, uses the infrared ray vacuum drying to constant weight,
Wherein, adsorption temp 20-50 ℃, adsorption time 2-12h, baking temperature 50-120 ℃
Three, the preparation of reducing agent
Reducing agent is the formulated mixture of one or more components of formaldehyde, formic acid, methyl alcohol, hydrazine hydrate, sodium borohydride, and PH is 4-12, and concentration is 0.02-2mol/L,
Four, microwave reduction, drying
The reducing agent of preparation is in advance joined in the carrier charcoal that carries platinum, and through microwave reduction, adding the load capacity that ethanol water dilution, dispersion, filtration, washing and microwave drying makes platinum again is the brilliant platinum carbon catalyst of loaded nano of the high dispersive of 0.5-50%, wherein:
The frequency of microwave is that 2.45GHZ, power are 100-700W, and reduction temperature is 20-90 ℃, and the recovery time is 30 seconds-30 minutes, and adding the water-reducible multiple of ethanol is 3-7 times, and jitter time is 1-8 hour, and baking temperature is 35-55 ℃, and the time is 1-5min,
Wherein reducing agent calculates by the consumption that 1 gram platinum adds the 0.1-70 milliliter.
Claims (1)
1, a kind of preparation method of nano-crystalline platinum carbon catalyst is characterized in that: follow these steps to carry out:
One, the preparation of platinum complex
With keto-alcohol mixed solvent dissolving platinum tetrachloride PtCl
4Behind the powder, under 20-55 ℃ of temperature conditions, handle 20-90min with ultrasonic wave, wherein:
Above-mentioned ultrasonic energy is controlled at 1-10W/cm
2Between,
Above-mentioned keto-alcohol mixed solvent be alcoholic solvent and ketone solvent in the formulated keto-alcohol mixture of the ratio of 1:1, wherein, ketone solvent is an acetone solvent; Alcoholic solvent be one or more components in methyl alcohol, propane diols, polyvinyl alcohol, the ethylene glycol in the formulated solvent of arbitrary volume ratio,
Keto-alcohol mixed solvent and platinum tetrachloride PtCl
4The configuration proportion criterion calculation of pressing platinum complex concentration 0.01-5mol/L,
Two, the absorption of platinum complex
The platinum complex dipping that makes in the step () is adsorbed onto on the carrier charcoal, uses the infrared ray vacuum drying to constant weight,
Wherein, adsorption temp 20-50 ℃, adsorption time 2-12h, baking temperature 50-120 ℃
Three, the preparation of reducing agent
Reducing agent is the formulated mixture of one or more components of formaldehyde, formic acid, methyl alcohol, hydrazine hydrate, sodium borohydride, and PH is 4-12, and concentration is 0.02-2mol/L,
Four, microwave reduction, drying
The reducing agent of preparation is in advance joined in the carrier charcoal that carries platinum, and through microwave reduction, adding the load capacity that ethanol water dilution, dispersion, filtration, washing and microwave drying makes platinum again is the brilliant platinum carbon catalyst of loaded nano of the high dispersive of 0.5-50%, wherein:
The frequency of microwave is that 2.45GHZ, power are 100-700W, and reduction temperature is 20-90 ℃, and the recovery time is 30 seconds-30 minutes, and adding the water-reducible multiple of ethanol is 3-7 times, and jitter time is 1-8 hour, and baking temperature is 35-55 ℃, and the time is 1-5min,
Wherein reducing agent calculates by the consumption that 1 gram platinum adds the 0.1-70 milliliter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100312559A CN100531901C (en) | 2008-05-08 | 2008-05-08 | Preparation method of high-activity nanocrystalline platinum carbon catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100312559A CN100531901C (en) | 2008-05-08 | 2008-05-08 | Preparation method of high-activity nanocrystalline platinum carbon catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101269324A CN101269324A (en) | 2008-09-24 |
| CN100531901C true CN100531901C (en) | 2009-08-26 |
Family
ID=40003707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100312559A Active CN100531901C (en) | 2008-05-08 | 2008-05-08 | Preparation method of high-activity nanocrystalline platinum carbon catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100531901C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912778B (en) * | 2010-09-01 | 2012-11-07 | 郴州高鑫铂业有限公司 | Method for preparing carbon-supported nano Pt-M fuel cell catalyst |
| CN101954278A (en) * | 2010-09-15 | 2011-01-26 | 郴州高鑫铂业有限公司 | Palladium-based catalyst used for synthesis of high-saturation nitrile butadiene rubber and preparation method thereof |
| US9761885B2 (en) * | 2011-08-24 | 2017-09-12 | Hai Xiong Ruan | Plate-shaped catalyst product and method for manufacturing same |
| CN104801298A (en) * | 2014-10-15 | 2015-07-29 | 青岛科技大学 | Method for preparing platinum-carbon catalyst |
| CN111135822B (en) * | 2018-11-06 | 2021-11-09 | 中国科学院大连化学物理研究所 | Application of high-dispersion noble metal supported catalyst in hydrogenation of aromatic nitro compound |
| CN110465289B (en) * | 2019-08-23 | 2022-05-03 | 西安凯立新材料股份有限公司 | Preparation method of activated carbon-supported platinum nanocrystalline catalyst |
| CN110841634A (en) * | 2019-10-24 | 2020-02-28 | 西安凯立新材料股份有限公司 | Preparation method of rhodium-carbon catalyst for synthesizing minocycline hydrochloride |
| CN112371099A (en) * | 2020-11-12 | 2021-02-19 | 四川羽玺电子科技有限公司 | Catalyst carrier and preparation method of platinum catalyst for synthesizing fluorosilane |
| CN112599801B (en) * | 2020-12-16 | 2021-12-24 | 中国石油大学(华东) | Ligand protection Pt6Sub-nanocluster and preparation method thereof, catalyst and preparation method and application thereof |
| CN114226436B (en) * | 2021-11-30 | 2023-07-25 | 浙江大学杭州国际科创中心 | Metal nanocrystalline modified composite electrode and preparation method and application thereof |
| CN117816153B (en) * | 2024-02-29 | 2024-05-10 | 黎明化工研究设计院有限责任公司 | Preparation method and application of supported Pd-based catalyst |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775362A (en) * | 2005-12-05 | 2006-05-24 | 浙江大学 | Method for preparing platinum/carbon nano electro catalyst by microwave synthesis |
| CN1785510A (en) * | 2005-11-10 | 2006-06-14 | 上海交通大学 | Preparation method of carbon nano-cage loaded metal platinum nano-particle electrode catalyst |
| CN1803292A (en) * | 2005-12-19 | 2006-07-19 | 华南理工大学 | Carbon-carried platinum-based catalyst for fuel cell and its preparation method |
| CN1915521A (en) * | 2006-08-09 | 2007-02-21 | 华南理工大学 | Method for preparing catalyst in classes of platinum, carbon in use for fuel cell through solid phase reduction |
| CN101083325A (en) * | 2007-07-03 | 2007-12-05 | 中国科学院上海微系统与信息技术研究所 | Method for preparing nano-Pd or Pd platinum alloy electrocatalyst for fuel cell |
| CN101108346A (en) * | 2007-07-17 | 2008-01-23 | 浙江大学 | Method of synthesizing Pt-CeO*/C electro-catalyst with one-step method microwave |
-
2008
- 2008-05-08 CN CNB2008100312559A patent/CN100531901C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785510A (en) * | 2005-11-10 | 2006-06-14 | 上海交通大学 | Preparation method of carbon nano-cage loaded metal platinum nano-particle electrode catalyst |
| CN1775362A (en) * | 2005-12-05 | 2006-05-24 | 浙江大学 | Method for preparing platinum/carbon nano electro catalyst by microwave synthesis |
| CN1803292A (en) * | 2005-12-19 | 2006-07-19 | 华南理工大学 | Carbon-carried platinum-based catalyst for fuel cell and its preparation method |
| CN1915521A (en) * | 2006-08-09 | 2007-02-21 | 华南理工大学 | Method for preparing catalyst in classes of platinum, carbon in use for fuel cell through solid phase reduction |
| CN101083325A (en) * | 2007-07-03 | 2007-12-05 | 中国科学院上海微系统与信息技术研究所 | Method for preparing nano-Pd or Pd platinum alloy electrocatalyst for fuel cell |
| CN101108346A (en) * | 2007-07-17 | 2008-01-23 | 浙江大学 | Method of synthesizing Pt-CeO*/C electro-catalyst with one-step method microwave |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101269324A (en) | 2008-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100531901C (en) | Preparation method of high-activity nanocrystalline platinum carbon catalyst | |
| CN107999108B (en) | Molybdenum carbide or tungsten carbide catalyst of a kind of load of nitrogen-phosphor codoping carbon and its preparation method and application | |
| CN104888832B (en) | A kind of metal/metal oxide/g C3N4Composite photocatalyst material and preparation method thereof | |
| CN105688809A (en) | Preparing method for graphene oxide/titanium dioxide nanometer tube composite material | |
| CN103301841B (en) | Graphene loaded high-dispersion nano Ni catalyst as well as preparation method and application thereof | |
| CN104056621A (en) | Preparation method of noble metal catalyst | |
| CN103203232B (en) | High dispersion supported nano noble metal catalyst and preparation method and application thereof | |
| CN106883818B (en) | Hud typed carbon ball/carbon nano tube composite wave-absorbing material and preparation method | |
| CN110212206A (en) | A kind of recessed shape of octahedron PtCuNi alloy nanoparticle and preparation method thereof | |
| CN103769088A (en) | Preparation method of size-controllable nano Pd/C catalyst | |
| CN110380068A (en) | A kind of implementation method improving methanol fuel cell electrooxidation activity and stability using PtCuNi alloy | |
| CN111785980A (en) | Biomass-based catalyst for direct formic acid fuel cell anode and preparation method thereof | |
| CN108889325A (en) | A kind of synthetic method of Pt nanoparticle catalyst | |
| CN105836855B (en) | A kind of preparation method and application of graphene gas-diffusion electrode | |
| CN114345324B (en) | Biomass carbon-based metal monoatomic composite catalyst, preparation method and application thereof | |
| CN105810960A (en) | Composite material taking foam nickel as matrix and preparation method of composite material | |
| CN113862719B (en) | Transition metal oxide catalyst and preparation method and application thereof | |
| CN101269417A (en) | Method for manufacturing nano-platinum powder | |
| CN110624551B (en) | Preparation method of lotus seedpod-based carbon-supported nickel catalyst | |
| CN102133526A (en) | Method for preparing ruthenium carbon catalyst | |
| CN103586480B (en) | One step microwave preparation of bimetallic/carbon-coating shape composite balls | |
| CN109256279A (en) | A kind of graphene and Co3O4The preparation method of composite material | |
| CN104624191A (en) | CoO/C catalyst and preparation method thereof | |
| CN107262143A (en) | Hydrogenation catalyst suitable for producing aviation kerosine and its preparation method and application | |
| CN103191726B (en) | Preparation method of fuel-cell catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080924 Assignee: CHENZHOU GAOXIN MATERIAL Co.,Ltd. Assignor: CHENZHOU GAOXIN PLATINUM Co.,Ltd. Contract record no.: X2021990000614 Denomination of invention: Preparation of high activity nanocrystalline platinum carbon catalyst Granted publication date: 20090826 License type: Exclusive License Record date: 20211012 |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 423000 wanhuayan industrial community, Beihu District, group 11, leidaqiao village, Baohe Town, Beihu District, Chenzhou City, Hunan Province Patentee after: Hunan Gaoxin platinum industry Co.,Ltd. Address before: 423000 No. 3 labour Road, Hunan, Chenzhou, No. 1 Patentee before: CHENZHOU GAOXIN PLATINUM Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220505 Address after: 423000 North Huancheng Road, Ziwu Industrial Park, Zixing City, Chenzhou City, Hunan Province Patentee after: CHENZHOU GAOXIN MATERIAL Co.,Ltd. Address before: 423000 wanhuayan industrial community, Beihu District, group 11, leidaqiao village, Baohe Town, Beihu District, Chenzhou City, Hunan Province Patentee before: Hunan Gaoxin platinum industry Co.,Ltd. |