CN101733116A - Cu3Mo2O9 catalyst and preparation method and application thereof - Google Patents
Cu3Mo2O9 catalyst and preparation method and application thereof Download PDFInfo
- Publication number
- CN101733116A CN101733116A CN 200810226634 CN200810226634A CN101733116A CN 101733116 A CN101733116 A CN 101733116A CN 200810226634 CN200810226634 CN 200810226634 CN 200810226634 A CN200810226634 A CN 200810226634A CN 101733116 A CN101733116 A CN 101733116A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- tail gas
- powder
- goes out
- cigarette ash
- 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.)
- Granted
Links
Images
Landscapes
- Catalysts (AREA)
Abstract
The invention provides a Cu3Mo2O9 catalyst which is Cu3Mo2O9 powder with nano-scaled grain diameter, as well as a preparation method thereof and application of the catalyst in the oxidizing reaction of carbon-contained substances. The invention provides a catalyst used in the oxidizing reaction of carbon-contained substances and comprises the Cu3Mo2O9 catalyst. The invention provides a method for catalyzing and oxidizing tail gas discharged by motors, wherein the power containing the nano-scaled Cu3Mo2O9 is used as a catalyst. In the invention, when the powder containing the nano-scaled Cu3Mo2O9 is used as a catalyst, ash of the tail gas discharged by engines can be oxidized, and the oxidizing temperature of the tail gas can be reduced by 150-250 DEG C in comparison with a catalyst without the nano-scaled Cu3Mo2O9 powder.
Description
Technical field
The present invention relates to a kind of Cu
3Mo
2O
9Catalysts and its preparation method and application, particularly, the present invention relates to contain particle diameter is nano level Cu
3Mo
2O
9The oxidation catalysis of cigarette ash in the tail gas that fine catalyst and to carbonaceous material, particularly engine emission go out.
Background technology
The catalysis characteristics of catalyst usually and size of catalyst and surface state thereof and structure closely related.Along with the minimizing of catalyst size, because the joint effect on quantum and surface can cause its catalytic performance to obtain improving in various degree.Therefore, utilize nanometer technology can realize change to catalyst catalytic performance.
Oxide is used very extensive at catalytic field, as CeO
2The cell catalyst that acts as a fuel, MoO
3As catalyst of some oxidation operation etc.For Cu
3Mo
2O
9The variation of chemical valence because appraising at the current rate all can appear in its Cu and Mo, may take place in complex oxide in catalytic process, therefore can cause the improvement of its catalytic performance.Cigarette ash is a kind of composition that leaves in the waste gas that engine discharges by gas extraction system, and for the tail gas that diesel engine is discharged as engine, main component is a carbon-bearing particulate matter.If directly be discharged in the air, can cause the pollution of atmosphere, therefore cigarette ash need be continued oxidizing fire.Just be based on this thought, we have carried out Cu
3Mo
2O
9Complex oxide is as the research of soot oxidation catalyst.The result shows Cu
3Mo
2O
9Complex oxide can reduce the temperature that oxidation takes place cigarette ash effectively in atmosphere, have significant catalytic effect.
In application number is the Chinese patent application of 200610021650.x, a kind of ester exchange synthesizing diphenyl carbonate bimetal composite oxide catalyst has been proposed, this catalyst basic composition is molybdenum oxide and Cu oxide, wherein the mol ratio of molybdenum copper is: Mo: Cu=100: 1-100, this catalyst does not require for size of catalyst, and this catalyst is used for dimethyl carbonate and phenol ester ester exchange synthesizing diphenyl carbonate.
Summary of the invention
The present invention's one purpose provides a kind of Cu
3Mo
2O
9Catalyst, this catalyst are that particle diameter is nano level Cu
3Mo
2O
9Powder.
Another object of the present invention provides the method for the described catalyst of preparation.
A further object of the present invention provides the purposes of a kind of described catalyst in catalysis carbonaceous material oxidation reaction.
A further object of the present invention provides a kind of catalyst of carbonaceous material oxidation reaction.
A further object of the present invention provides the method for the tail gas that a kind of catalytic oxidation engine emission goes out.
One aspect of the present invention provides a kind of Cu
3Mo
2O
9Catalyst, this catalyst are that particle diameter is nano level Cu
3Mo
2O
9Powder.
The present invention also provides a kind of method for preparing described catalyst on the other hand, and this method may further comprise the steps:
A. be nano level Cu with particle diameter
2O and MoO
3Powder is with 3: the mixed in molar ratio of 4-4.2;
B. with above-mentioned mixture at 480-520 ℃ of following sintering 3-5 hour, obtain described Cu
3Mo
2O
9Catalyst.
Further aspect of the present invention also provides a kind of method for preparing described catalyst, and this method may further comprise the steps:
A. at first with copper sulphate and ammonium molybdate by 10.5-10.8: 1 mol ratio is dissolved in the water;
B. the aqueous solution that step a is obtained heated 2-24 hour down at 120-150 ℃, collected the sediment that obtains;
C. the sediment that obtains of drying steps b, and with dried sediment 500-550 ℃ of roasting, obtain described Cu
3Mo
2O
9Catalyst.
Further aspect of the present invention also provides the purposes of described catalyst in the oxidation reaction of catalysis carbonaceous material.
Preferably, described carbonaceous material is the cigarette ash in the tail gas that goes out of engine emission.
Further aspect of the present invention provides a kind of catalyst of oxidation reaction of carbonaceous material, and this catalyst comprises described Cu
3Mo
2O
9Catalyst.
Preferably, wherein said carbonaceous material is the cigarette ash in the tail gas that goes out of engine emission.
Preferably, the tail gas that goes out of described engine emission is the tail gas that diesel engine goes out as engine emission.
Preferably, the tail gas that goes out of described engine emission is vehicle exhaust.
Further aspect of the present invention provides the method for the tail gas that a kind of catalytic oxidation engine emission goes out, and wherein using above-mentioned particle diameter is nano level Cu
3Mo
2O
9Powder is as catalyst.
Cu among the present invention
3Mo
2O
9Catalyst fines is a nanoscale, and prior art does not require this size of catalyst, finds nano level Cu after deliberation
3Mo
2O
9Powder has the effect of catalytic oxidation carbonaceous material.Cigarette ash is as a kind of composition in the motor exhaust, and its harmful components mainly are hydrocarbon (C
nH
m) and carbon monoxide (CO) etc., directly be discharged in the atmosphere serious environment pollution.Diesel engine is during as engine, and dust content is higher in the tail gas that it gives off, and environmental pollution is more serious.
Adopt nano level Cu among the present invention
3Mo
2O
9Powder can be oxidized to CO with the harmful components of these carbon containings in the motor exhaust cigarette ash during as catalyst
2, contain nanoscale Cu with respect to not adding
3Mo
2O
9Fine catalyst, the oxidizing temperature of tail gas cigarette ash have reduced 150-250 ℃.
Nanometer powder Cu
3Mo
2O
9During as the catalyst of catalytic oxidation carbonaceous material, can be used for containing in the tail gas industrial circle that main component is the cigarette ash of carbonaceous particles, as the oxidation processes of cigarette ash in the diesel engine vent gas etc.In addition, Cu
3Mo
2O
9Also may be organic and the catalyst of inorganic matter oxidation processes as other similar carbon containings.
Description of drawings
Fig. 1 represents the Cu that embodiment 1 is prepared from
3Mo
2O
9The elemental composition analysis chart of catalyst.
Fig. 2 represents X-ray diffracting spectrum, and wherein the Cu of the embodiment of the invention 1 preparation is represented on the top of this figure
3Mo
2O
9The X-ray diffracting spectrum of catalyst, Cu is represented in the lower part of this figure
3Mo
2O
9The theoretical X-ray diffracting spectrum of ternary oxide.
Fig. 3 is the differential thermal analysis curve of cigarette ash, and wherein curve 1 is illustrated in nano level Cu
3Mo
2O
9Under the fine catalyst effect, the temperature-heat flow curve of cigarette ash; Under the curve 2 expression catalyst-free effects, the temperature-heat flow curve of cigarette ash.
Fig. 4 is the thermogravimetric analysis figure of cigarette ash, and wherein curve 1 is illustrated in nano level Cu
3Mo
2O
9Under the fine catalyst effect, the temperature of cigarette ash-weightless relation curve; Under the curve 2 expression catalyst-free effects, the temperature of cigarette ash-weightless relation curve.
The specific embodiment
Embodiment 1
Nano level Cu
3Mo
2O
9The preparation of fine catalyst: with nano level Cu
2O and MoO
3Powder mixes with 3: 4 mol ratio, nano level Cu
2The O powder is bought from Shanghai duty worker inorganic salts Co., Ltd, and commodity are called cuprous oxide, and article number is 060316; Nano level MoO
3Powder is bought from Beijing chemical reagents corporation, and commodity are called molybdenum trioxide, and article number is 060406.
With nano level Cu
2O and nano level MoO
3The mixture of powder was 500 ℃ of following sintering 3 hours, and obtaining particle diameter is nano level Cu
3Mo
2O
9Fine catalyst.
The evaluation of catalyst component: the Cu that adopts method for preparing to form
3Mo
2O
9Elementary analysis figure such as Fig. 1 of fine catalyst, result show and only have Cu, Mo and three kinds of elements of O in this compound that its ratio is as follows: Cu
3Mo
2.11O
8.52The Cu that adopts method for preparing to form
3Mo
2O
9The X-ray diffracting spectrum of fine catalyst such as Fig. 2, wherein the Cu of the inventive method preparation is represented on the top of this figure
3Mo
2O
9The X-ray diffracting spectrum of catalyst, Cu is represented in the lower part of this figure
3Mo
2O
9The theoretical X-ray diffracting spectrum of ternary oxide, the result shows that this two-part X ray collection of illustrative plates coincide, and other dephasign do not occur, has confirmed the Cu that adopts method for preparing to obtain
3Mo
2O
9Catalyst is a pure material.
Containing particle diameter is nano level Cu
3Mo
2O
9The application experiment of fine catalyst: the catalyst that will prepare by above method, can satisfy commercial Application.Catalytic test is finished on differential thermal-thermogravimetric (DTA-TG) linkage analysis instrument.The nanometer Cu that method for preparing is gone out
3Mo
2O
9The standard cigarette ash of powder and purchase evenly mixed by weight 4: 1, and the gross weight of mixed-powder is about 5mg.Place the crucible of differential thermal-thermogravimetric (DTA-TG) linkage analysis instrument to carry out differential thermal-thermogravimetric analysis in this powder.In order to compare, carried out cigarette ash oxidation experiment in atmosphere simultaneously, it the results are shown in the accompanying drawing.
The analysis of experimental result: from the temperature-heat flow curve of Fig. 3 cigarette ash as can be known, with Cu
3Mo
2O
9After the powder, the oxidizing reaction temperature of cigarette ash is reduced to 430 ℃, sees the temperature of curve-1 peak value correspondence; During catalyst-free, the oxidizing temperature of cigarette ash is about 600 ℃, sees the temperature of curve-2 peak value correspondence.This illustrates Cu
3Mo
2O
9Significantly reduce the oxidizing temperature of cigarette ash, had good catalytic effect.Fig. 4 is the temperature-weightless relation curve of cigarette ash.Wherein curve 1 is at Cu
3Mo
2O
9Temperature-the weight-loss curve of cigarette ash under the catalyst action, the weightless temperature of cigarette ash is 430 ℃ as can be known; Temperature-weight-loss curve under the effect of curve-2 expression catalyst-free, from its as can be known the weightless temperature of cigarette ash be 600 ℃.This illustrates Cu
3Mo
2O
9Significantly reduce the oxidizing temperature of cigarette ash, had good catalytic effect.
Nano level Cu
3Mo
2O
9The preparation of fine catalyst: at first copper sulphate and the ammonium molybdate mol ratio by 10.5: 1 is dissolved in the water, the aqueous solution reaction under 150 ℃ that obtains was obtained sediment in 24 hours, and it is carried out drying handle, carry out roasting at 500 ℃ then, obtain being of a size of nano level Cu
3Mo
2O
9Fine catalyst.
Nano level Cu
3Mo
2O
9The composition identification experiment of fine catalyst, application experiment and interpretation are with embodiment 1.
Claims (10)
1. Cu
3Mo
2O
9Catalyst, this catalyst are that particle diameter is nano level Cu
3Mo
2O
9Powder.
2. method for preparing the described catalyst of claim 1, this method may further comprise the steps:
A. be nano level Cu with particle diameter
2O and MoO
3Powder is with 3: the mixed in molar ratio of 4-4.2;
B. with above-mentioned mixture at 480-520 ℃ of following sintering 3-5 hour, obtain described Cu
3Mo
2O
9Catalyst.
3. method for preparing the described catalyst of claim 1, this method may further comprise the steps:
A. at first with copper sulphate and ammonium molybdate by 10.5-10.8: 1 mol ratio is dissolved in the water;
B. the aqueous solution that step a is obtained heated 2-24 hour down at 120-150 ℃, collected the sediment that obtains;
C. the sediment that obtains of drying steps b, and with dried sediment 500-550 ℃ of roasting, obtain described Cu
3Mo
2O
9Catalyst.
4. the purposes of the described catalyst of claim 1 in the oxidation reaction of catalysis carbonaceous material.
5. purposes according to claim 4, wherein said carbonaceous material are the cigarette ash in the tail gas that goes out of engine emission.
6. the catalyst of the oxidation reaction of a carbonaceous material, this catalyst comprises the described Cu of claim 1
3Mo
2O
9Catalyst.
7. catalyst according to claim 6, wherein said carbonaceous material are the cigarette ash in the tail gas that goes out of engine emission.
8. catalyst according to claim 7, the tail gas that wherein said engine emission goes out are the tail gas that diesel engine goes out as engine emission.
9. catalyst according to claim 7, the tail gas that wherein said engine emission goes out are vehicle exhaust.
10. the method for the tail gas that goes out of a catalytic oxidation engine emission, wherein using the described particle diameter of claim 1 is nano level Cu
3Mo
2O
9Powder is as catalyst.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008102266343A CN101733116B (en) | 2008-11-18 | 2008-11-18 | Cu3Mo2O9 catalyst and preparation method and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008102266343A CN101733116B (en) | 2008-11-18 | 2008-11-18 | Cu3Mo2O9 catalyst and preparation method and application thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101733116A true CN101733116A (en) | 2010-06-16 |
CN101733116B CN101733116B (en) | 2012-07-11 |
Family
ID=42457447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008102266343A Expired - Fee Related CN101733116B (en) | 2008-11-18 | 2008-11-18 | Cu3Mo2O9 catalyst and preparation method and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101733116B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102502838A (en) * | 2011-11-07 | 2012-06-20 | 河北联合大学 | Preparation method for copper molybdate microsphere super structure assembled by nanosheets |
CN107221670A (en) * | 2017-06-20 | 2017-09-29 | 扬州大学 | A kind of synthetic method of lithium ion battery negative material nanometer rods |
CN109126814A (en) * | 2018-09-28 | 2019-01-04 | 南昌航空大学 | A kind of method of micro nano structure copper molybdate growth in situ |
CN112439422A (en) * | 2020-12-07 | 2021-03-05 | 岭南师范学院 | Cu3Mo2O9/BiVO4Nano heterostructure composite material and preparation method and application thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10050153A1 (en) * | 1999-10-12 | 2001-08-09 | Hitachi Maxell | Active material for a positive electrode and a lithium cell comprising this material |
CN1986893A (en) * | 2005-12-20 | 2007-06-27 | 中国科学院兰州化学物理研究所 | Electrochemical reducing process for preparing nanometer MOS2 particle |
CN100589902C (en) * | 2007-09-26 | 2010-02-17 | 中南大学 | Ultra-fine or nanometer molybdenum cuprum composite powder and method of producing the alloy thereof |
-
2008
- 2008-11-18 CN CN2008102266343A patent/CN101733116B/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102502838A (en) * | 2011-11-07 | 2012-06-20 | 河北联合大学 | Preparation method for copper molybdate microsphere super structure assembled by nanosheets |
CN107221670A (en) * | 2017-06-20 | 2017-09-29 | 扬州大学 | A kind of synthetic method of lithium ion battery negative material nanometer rods |
CN109126814A (en) * | 2018-09-28 | 2019-01-04 | 南昌航空大学 | A kind of method of micro nano structure copper molybdate growth in situ |
CN109126814B (en) * | 2018-09-28 | 2021-09-03 | 南昌航空大学 | Method for in-situ growth of copper molybdate with micro-nano structure |
CN112439422A (en) * | 2020-12-07 | 2021-03-05 | 岭南师范学院 | Cu3Mo2O9/BiVO4Nano heterostructure composite material and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
CN101733116B (en) | 2012-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101247912B (en) | Composite material, composite material base, composite material dispersion liquid, and methods for producing those | |
CN105327706B (en) | A kind of catalyst of low-temperature catalyzed removal environmental contaminants and preparation method thereof | |
WO2007143837A1 (en) | Process for optimizing the catalytic activity of a perovskite-based catalyst | |
CN101733116B (en) | Cu3Mo2O9 catalyst and preparation method and application thereof | |
EP3936706A1 (en) | Combustion system | |
CN107456964A (en) | For the extra specific surface area perovskite type composite oxide catalyst of hydrocarbon low-temperature oxidation and its preparation | |
Santillan-Jimenez et al. | Carbon nanotube-supported metal catalysts for NOx reduction using hydrocarbon reductants. Part 1: Catalyst preparation, characterization and NOx reduction characteristics | |
CN110605114A (en) | Application of mullite oxide supported catalyst in low-temperature selective catalytic reduction denitration | |
CN108465463A (en) | A kind of low temperature nucleocapsid Ce base catalyst and its preparation method and application | |
Chigrin et al. | Structural transformations of CuMoO 4 in the catalytic oxidation of carbon | |
CN109689205B (en) | Use of vanadates as oxidation catalysts | |
CN109603822A (en) | A kind of polymolecularity precious metal oxidation catalyst of hydrothermal aging resistant to high temperatures and its preparation | |
CN111111647B (en) | Niobite type manganese-niobium-based SCR denitration catalyst and preparation method thereof | |
Niu et al. | Mesoporous Ce x Co 1− x Cr 2 O 4 spinels: synthesis, characterization and catalytic application in simultaneous removal of soot particulate and NO | |
CN106902823B (en) | A kind of core-shell structure denitrating catalyst and preparation method thereof of the resistance to sulfur poisoning of chlorine-resistant | |
Grisel et al. | Oxidation reactions over multi-component catalysts: low-temperature CO oxidation and the total oxidation of CH4 | |
CN102862960B (en) | Application and preparation of high-activity composite oxide oxygen carrier in chemical link circulation hydrogen production | |
CN102862959A (en) | Applications and preparation of high-activity oxygen carrier in chemical looping circulation hydrogen production | |
CN102862956B (en) | The application of a kind of oxygen carrier with perovskite structure in hydrogen production of chemical chain and preparation | |
CN102864008B (en) | Composite oxide oxygen carrier and preparation method and application thereof | |
Shourya et al. | Manganese doped Ceria (Ce1− x Mn x O2− δ (x= 0–0.3)) catalysts synthesized by EDTA–Citrate method for soot oxidation activity | |
CN110479326A (en) | A kind of phosphorus doping copper cerium metal composite oxide bifunctional catalyst and its preparation method and application | |
CN110124662A (en) | A kind of preparation method and applications for receiving scale cerium manganese potassium combined oxidation type catalyst | |
CN102909023A (en) | Automobile exhaust catalyst and preparation method thereof | |
CN102864007A (en) | Oxygen carrier for chemical-looping combustion technology and preparation method and application thereof |
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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141118 |
|
EXPY | Termination of patent right or utility model |