CN104591722A - Perovskite-type nanometer material and preparation method thereof - Google Patents

Perovskite-type nanometer material and preparation method thereof Download PDF

Info

Publication number
CN104591722A
CN104591722A CN201510002279.1A CN201510002279A CN104591722A CN 104591722 A CN104591722 A CN 104591722A CN 201510002279 A CN201510002279 A CN 201510002279A CN 104591722 A CN104591722 A CN 104591722A
Authority
CN
China
Prior art keywords
solution
preparation
calcium
titanium ore
type nano
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
Application number
CN201510002279.1A
Other languages
Chinese (zh)
Other versions
CN104591722B (en
Inventor
杨中正
仝玉萍
邢振贤
马军涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North China University of Water Resources and Electric Power
Original Assignee
North China University of Water Resources and Electric Power
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by North China University of Water Resources and Electric Power filed Critical North China University of Water Resources and Electric Power
Priority to CN201510002279.1A priority Critical patent/CN104591722B/en
Publication of CN104591722A publication Critical patent/CN104591722A/en
Application granted granted Critical
Publication of CN104591722B publication Critical patent/CN104591722B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)
  • Catalysts (AREA)

Abstract

The invention relates to a perovskite-type nanometer material and a preparation method thereof. The preparation method comprises the steps of preparing a precursor of a nanometer (CaxNd1-x)0.1La0.9Co0.5Fe0.5O3(x=0.1-0.4) material from initial raw materials including Nd(NO3)3.6H2O, Ca(NO3)2.4H2O, La(NO3)3.6H2O, Co(NO3)3.6H2O and Fe(NO3)3.6H2O by using a coprecipitation method; and calcining the precursor to obtain the nanometer (CaxNd1-x) 0.1La0.9Co0.5Fe0.5O3(x=0.1-0.4) material. The preparation method disclosed by the invention has the advantages that the raw materials are available; the preparation method is simple and safe in step, free of large special equipment, small in investment and relatively low in production cost; and the product is short in production period, high in purity, stable in structure, resistant to chemical corrosion and relatively good in industrial application prospect.

Description

A kind of calcium-titanium ore type nano material and preparation method thereof
Technical field
The present invention relates to a kind of nano material, be specifically related to a kind of calcium-titanium ore type nano material and preparation method thereof.
Background technology
Perovskite-type material belongs to trigonal system, and basic structure is ABO 3(A and B represents positively charged ion, and O represents oxonium ion).Up to now, the oxide compound ABO with perovskite structure is found 3three kinds of ionic radius of type compound meet following relationship: R a+ R o=t2 0.5(R b+ R o) (generally t=0.7 ~ 1.0).Because perofskite type oxide material has this special structure, perovskite-type material is made to have much special character, as thermoelectricity capability, superconductivity, piezoelectric property, optical property, magnetic performance etc.Improve again the performance of perovskite-type material by doping in practical application, can say that perovskite-type material is a kind of extremely important functional materials, be of wide application, as catalysis, fuel cell, sensor, stopper, light micromotor, memory device, matrix or the aspect such as substrate, photoelectric device.And nano-perovskite shaped material has unique nanocrystal and high-density Grain Boundary Character and the surface effects produced therefrom, small-size effect and macro quanta tunnel effect, it is made to show at aspect of performances such as chemistry, mechanics, calorifics, magnetics, optics, electricity, acoustics a series of with common polycrystalline body with the essential distinction of non-crystalline solids.
Chinese patent CN103449536A discloses a kind of Perovskite-type nanometer Nd 1-xmg xcoO 3preparation method, adopt metallic cation instead of uhligite ABO 3play the A position metal ion of supporting structure skeleton in type composite oxide material, cause larger lattice distortion, improve the performance such as its catalysis and chemistry.
Summary of the invention
The object of the present invention is to provide a kind of calcium-titanium ore type nano material, molecular formula is (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3, x=0.1 ~ 0.4 in formula.
Another object of the present invention is also the preparation method providing a kind of calcium-titanium ore type nano material, and step is simple, safely, without the need to large-scale specific installation, less investment, production cost is lower, and life cycle of the product is short, and product purity is high.
For achieving the above object, the present invention adopts following technical scheme:
A kind of calcium-titanium ore type nano material, described calcium-titanium ore type nano material molecular formula is (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3, x=0.1 ~ 0.4 in formula.
A preparation method for above-mentioned calcium-titanium ore type nano material, comprises the following steps:
(1) a certain amount of Nd is dissolved with distilled water respectively (nO 3 ) 36H 2o, Ca (NO 3) 24H 2o, La (NO 3) 36H 2o, Co (NO 3) 36H 2o, Fe 2(SO 4) 39H 2o, is mixed with Nd respectively (nO 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3concentration is 0.2 ~ 0.5 molL -1solution;
(2) according to (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3metallic element ratio in material, by step (1) a certain amount of Nd (nO 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3solution mixes, and ultrasonic disperse 8 ~ 15 min, obtains mixed solution A;
(3) be 0.20 ~ 0.30 molL by concentration -1kOH solution and concentration are 0.05 ~ 0.15 molL -1k 2cO 3solution is 1 ~ 3:1 mixing by volume, obtains solution B;
(4) solution B is dropwise added in solution A, stir, ultrasonic disperse 30 ~ 60 min, pH value to solution is 10 ~ 11, then centrifugation 3 ~ 5 min, collecting precipitation, adopts distilled water wash precipitation, until washing is to neutral rear suction filtration, then use dissolve with ethanol filter cake, after continuing ultrasonic disperse 10 ~ 20 min, then carry out centrifugation 3 ~ 5min, so 3 ~ 5 times repeatedly, be precipitated sample C;
(5) deposit sample C is placed in baking oven and dries 12 ~ 24 h under 100 ~ 110 DEG C of conditions, finally the material of oven dry is fully ground to form meal, obtain (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3(x=0.1 ~ 0.4) presoma D, described x=0.1 ~ 0.4;
(6) presoma D is placed in electric furnace, with 5 ~ 10 DEG C of min -1temperature rise rate be heated to 450 ~ 500 DEG C of insulation 1.0 ~ 3.0 h after, then with 3 ~ 6 DEG C of min -1temperature rise rate continue to be heated to 800 ~ 900 DEG C of insulation 2.0 ~ 4.0 h after, Temperature fall is cooled to room temperature, obtains nanometer (Nd xca 1-x) 0.1la 0.9co 0.5fe 0.5o 3material, described x=0.1 ~ 0.4.
According to the preparation method of above-mentioned calcium-titanium ore type nano material, the baking oven described in step (5) is blast dry oven.
According to the preparation method of above-mentioned calcium-titanium ore type nano material, the nanometer (Ca described in step (6) xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3material particle size is 80 ~ 120 nm.
positive beneficial effect of the present invention:
(1) the present invention adopts other metallic cations to instead of uhligite ABO 3play the A position metal ion of main support structure skeleton in type composite oxide material, cause larger lattice distortion, improve the performance such as its catalysis and chemistry; Be on the basis replaced at A, other transition-metal cations are adopted again to instead of the B position ion of the functions such as main catalytic active, prepare the perovskite-type material with that A position and B position replace and that there is mixed valence structure, make this material system energy larger, only need can there is the transformation that electronic structure matches under less energy drives, thus obtain the performances such as more excellent magnetics, optics, electricity, surface and catalysis.
(2) perovskite typed nanometer (Ca of the present invention xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3material adopts A position and B position ion to replace the oxide perovskite material of replacement simultaneously, has the feature of ionic valence condition in a big way in modulation and control texture and lattice defect, can keep good thermodynamic stability again simultaneously.
(3) the raw materials used wide material sources of the present invention, cheap; Preparation method of the present invention, simple to operation, safety, equipment is few, invests little, easily produces; Life cycle of the product is short, and cost is low, and purity is high, and particle diameter is 80 ~ 120 nm, Stability Analysis of Structures, resistance to chemical attack, has good industrial utilization prospect.
Accompanying drawing explanation
Fig. 1 is the XRD figure spectrum of the X-ray diffraction of the embodiment of the present invention 1 calcium-titanium ore type nano material;
Fig. 2 is the XRD figure spectrum of the X-ray diffraction of the embodiment of the present invention 2 calcium-titanium ore type nano material;
Fig. 3 is the XRD figure spectrum of the X-ray diffraction of the embodiment of the present invention 3 calcium-titanium ore type nano material.
Embodiment
Below in conjunction with some specific embodiments, the present invention is further described.
Embodiment 1
A kind of calcium-titanium ore type nano material, described calcium-titanium ore type nano material molecular formula is (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3, x=0.4 in formula.
Above-mentioned perovskite typed nanometer (Ca 0.4nd 0.6) 0.1la 0.9co 0.5fe 0.5o 3the preparation method of material, comprises the following steps:
(1) Nd of 21.9120g is weighed (nO 3 ) 36H 2ca (the NO of O, 11.8075g 3) 24H 2la (the NO of O, 21.6500g 3) 36H 2co (the NO of O, 17.6500g 3) 36H 2the Fe of O, 28.1005g 2(SO 4) 39H 2o, then adding a certain amount of distilled water respectively, to be mixed with concentration be respectively 0.5 molL -1nd (nO 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3solution;
(2) according to (Ca 0.4nd 0.6) 0.1la 0.9co 0.5fe 0.5o 3metallic element stoichiometric ratio (Ca:Nd:La:Co:Fe=0.04:0.06:0.9:0.5:0.5) in material, respectively by the Ca (NO of above-mentioned steps (1) gained 4ml 3) 2the Nd of solution, 6ml (nO 3 ) 3la (the NO of solution, 90ml 3) 3co (the NO of solution, 50ml 3) 3the Fe of solution, 25ml 2(SO 4) 3solution mixes, and obtains mixed solution A after ultrasonic disperse mixing 10min;
(3) by 0.30 molL -1kOH solution and concentration be 0.15 molL -1k 2cO 3solution be by volume 2:1 mixing, obtain solution B;
(4) solution B is dropwise added in solution A, stir, ultrasonic disperse 60 min, pH value to solution is 10, then centrifugation 5 min, collecting precipitation, adopts distilled water wash precipitation, until washing is to neutral rear suction filtration, then use dissolve with ethanol filter cake, after continuing ultrasonic disperse 20 min, then carry out centrifugation 5 min, so 3 times repeatedly, be precipitated sample C;
(5) deposit sample C is placed in baking oven and dries 20 h under 110 DEG C of conditions, finally the material of oven dry is fully ground to form meal, obtain ((Ca 0.4nd 0.6) 0.1la 0.9co 0.5fe 0.5o 3presoma D;
(6) presoma D is placed in electric furnace, with 5 DEG C of min -1temperature rise rate be heated to 500 DEG C insulation 3 h after, then with
3 DEG C of min -1temperature rise rate continue to be heated to 800 DEG C of insulation 2.0 h after, Temperature fall is cooled to room temperature, obtains nanometer (Ca 0.4nd 0.6) 0.1la 0.9co 0.5fe 0.5o 3material.
As can be seen from Figure 1, product (Ca 0.4nd 0.6) 0.1la 0.9co 0.5fe 0.5o 3the purity of perovskite material is high, and be single uhligite crystalline phase, median size is 80 nm, and feed stock conversion is 99%.
embodiment 2
A kind of calcium-titanium ore type nano material, described calcium-titanium ore type nano material molecular formula is (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3, x=0.3 in formula.
Above-mentioned perovskite typed nanometer (Ca 0.3nd 0.7) 0.1la 0.9co 0.5fe 0.5o 3the preparation method of material, comprises the following steps:
(1) Nd (NO of 17.5296g is first weighed 3) 36H 2ca (the NO of O, 9.4460g 3) 24H 2la (the NO of O, 17.3200g 3) 36H 2co (the NO of O, 14.1200g 3) 36H 2the Fe of O, 22.4804g 2(SO 4) 39H 2o, then adding a certain amount of distilled water respectively, to be mixed with concentration be respectively 0.4 molL -1nd (nO 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3solution;
(2) according to (Ca 0.3nd 0.7) 0.1la 0.9co 0.5fe 0.5o 3metallic element stoichiometric ratio (Ca:Nd:La:Co:Fe=0.03:0.07:0.9:0.5:0.5) in material, respectively by the Ca (NO of above-mentioned steps (1) gained 3ml 3) 2nd (the NO of solution, 7ml 3) 3la (the NO of solution, 90ml 3) 3co (the NO of solution, 50ml 3) 3the Fe of solution, 25ml 2(SO 4) 3solution) mixing, ultrasonic disperse mixing 8min, obtains mixed solution A;
(3) by 0.20 molL -1kOH and 0.05 molL -1k 2cO 3volume ratio be 3:1 mixing, obtain solution B;
(4) solution B is dropwise added in solution A, stir, ultrasonic disperse 50 min, pH value to solution is 11, then centrifugation 4 min, collecting precipitation, adopts distilled water wash precipitation, until washing is to neutral rear suction filtration, then use dissolve with ethanol filter cake, after continuing ultrasonic disperse 15 min, then carry out centrifugation 4 min, so 4 times repeatedly, be precipitated sample C;
(5) deposit sample C is placed in convection oven and dries 12 h under 100 DEG C of conditions, finally the material of oven dry is fully ground to form meal, obtain (Ca 0.3nd 0.7) 0.1la 0.9co 0.5fe 0.5o 3presoma D;
(6) presoma D is placed in electric furnace, with 8 DEG C of min -1temperature rise rate be heated to 450 DEG C of insulation 2 h after, then with 4 DEG C of min -1temperature rise rate continue to be heated to 820 DEG C of insulation 4.0 h after, Temperature fall is cooled to room temperature, obtains nanometer (Ca 0.3nd 0.7) 0.1la 0.9co 0.5fe 0.5o 3material.
As can be seen from Figure 2, product (Ca 0.3nd 0.7) 0.1la 0.9co 0.5fe 0.5o 3the purity of perovskite material is high, and be single uhligite crystalline phase, median size is 100 nm, and feed stock conversion is 100%.
embodiment 3
A kind of calcium-titanium ore type nano material, described calcium-titanium ore type nano material molecular formula is (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3, x=0.1 in formula.
Above-mentioned perovskite typed nanometer (Ca 0.1nd 0.9) 0.1la 0.9co 0.5fe 0.5o 3the preparation method of material, comprises the following steps:
(1) Nd of 17.5296g is first weighed (nO 3 ) 36H 2ca (the NO of O, 9.4460g 3) 24H 2la (the NO of O, 17.3200g 3) 36H 2co (the NO of O, 14.1200g 3) 36H 2the Fe of O, 22.4804g 2(SO 4) 39H 2o, then adding a certain amount of distilled water respectively, to be mixed with concentration be respectively 0.2 molL -1nd (nO 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3solution;
(2) according to (Ca 0.1nd 0.9) 0.1la 0.9co 0.5fe 0.5o 3metallic element stoichiometric ratio (Ca:Nd:La:Co:Fe=0.01:0.09:0.9:0.5:0.5) in material, respectively by the Ca (NO of above-mentioned steps (1) gained 2ml 3) 2nd (the NO of solution, 18 ml 3) 3la (the NO of solution, 180 ml 3) 3co (the NO of solution, 100 ml 3) 3the Fe of solution, 50 ml 2(SO 4) 3solution mixes, and ultrasonic disperse 15 min, obtains mixed solution A;
(3) by 0.20 molL -1kOH and 0.10 molL -1k 2cO 3volume ratio be 1:1 mixing, obtain solution B;
(4) solution B is dropwise added in solution A, stir, ultrasonic disperse 30 min, pH value to solution is 11, then centrifugation 3 min, collecting precipitation, adopts distilled water wash precipitation, until washing is to neutral rear suction filtration, then use dissolve with ethanol filter cake, after continuing ultrasonic disperse 10 min, then carry out centrifugation 3 min, so 5 times repeatedly, be precipitated sample C;
(5) deposit sample C is placed in convection oven and dries 24h under 110 DEG C of conditions, finally the material of oven dry is fully ground to form meal, obtain (Ca 0.1nd 0.9) 0.1la 0.9co 0.5fe 0.5o 3presoma D;
(6) presoma D is placed in electric furnace, with 10 DEG C of min -1temperature rise rate be heated to 460 DEG C of insulation 1 h after, then with 6 DEG C of min -1temperature rise rate continue to be heated to 900 DEG C of insulation 3.0 h after, Temperature fall is cooled to room temperature, obtains nanometer (Ca 0.1nd 0.9) 0.1la 0.9co 0.5fe 0.5o 3material.
As can be seen from Figure 3, product (Ca 0.1nd 0.9) 0.1la 0.9co 0.5fe 0.5o 3the purity of perovskite material is very high, and be single uhligite crystalline phase, median size is 120 nm, and feed stock conversion is 99%.

Claims (4)

1. a calcium-titanium ore type nano material, is characterized in that, described calcium-titanium ore type nano material molecular formula is (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3, x=0.1 ~ 0.4 in formula.
2. a preparation method for calcium-titanium ore type nano material according to claim 1, is characterized in that, comprises the following steps:
(1) a certain amount of Nd (NO is dissolved with distilled water respectively 3 ) 36H 2o, Ca (NO 3) 24H 2o, La (NO 3) 36H 2o, Co (NO 3) 36H 2o, Fe 2(SO 4) 39H 2o, is mixed with Nd (NO respectively 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3concentration is 0.2 ~ 0.5molL -1solution;
(2) according to (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3metallic element stoichiometric ratio in material, by a certain amount of for step (1) Nd (NO 3 ) 3, Ca (NO 3) 2, La (NO 3) 3, Co (NO 3) 3and Fe 2(SO 4) 3solution mixes, and ultrasonic disperse 8 ~ 15 min, obtains mixed solution A;
(3) be 0.20 ~ 0.30 molL by concentration -1kOH solution and concentration are 0.05 ~ 0.15 molL -1k 2cO 3solution is 1 ~ 3:1 mixing by volume, obtains solution B;
(4) solution B is dropwise added in solution A, stir, ultrasonic disperse 30 ~ 60 min, pH value to solution is 10 ~ 11, then centrifugation 3 ~ 5 min, collecting precipitation, adopts distilled water wash precipitation, until washing is to neutral rear suction filtration, then use dissolve with ethanol filter cake, after continuing ultrasonic disperse 10 ~ 20 min, then carry out centrifugation 3 ~ 5min, so 3 ~ 5 times repeatedly, be precipitated sample C;
(5) deposit sample C is placed in baking oven and dries 12 ~ 24 h under 100 ~ 110 DEG C of conditions, finally the material of oven dry is fully ground to form meal, obtain (Ca xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3presoma D, described x=0.1 ~ 0.4;
(6) presoma D is placed in electric furnace, with 5 ~ 10 DEG C of min -1temperature rise rate be heated to 450 ~ 500 DEG C of insulation 1.0 ~ 3.0 h after, then with 3 ~ 6 DEG C of min -1temperature rise rate continue to be heated to 800 ~ 900 DEG C of insulation 2.0 ~ 4.0 h after, Temperature fall is cooled to room temperature, obtains nanometer (Nd xca 1-x) 0.1la 0.9co 0.5fe 0.5o 3material, described x=0.1 ~ 0.4.
3. the preparation method of calcium-titanium ore type nano material according to claim 2, is characterized in that, the baking oven described in step (5) is blast dry oven.
4. the preparation method of calcium-titanium ore type nano material according to claim 2, is characterized in that, the nanometer (Ca described in step (6) xnd 1-x) 0.1la 0.9co 0.5fe 0.5o 3material particle size is 80 ~ 120 nm.
CN201510002279.1A 2015-01-05 2015-01-05 A kind of calcium-titanium ore type nano material and preparation method thereof Expired - Fee Related CN104591722B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510002279.1A CN104591722B (en) 2015-01-05 2015-01-05 A kind of calcium-titanium ore type nano material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510002279.1A CN104591722B (en) 2015-01-05 2015-01-05 A kind of calcium-titanium ore type nano material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN104591722A true CN104591722A (en) 2015-05-06
CN104591722B CN104591722B (en) 2016-06-08

Family

ID=53117834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510002279.1A Expired - Fee Related CN104591722B (en) 2015-01-05 2015-01-05 A kind of calcium-titanium ore type nano material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104591722B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107857301A (en) * 2017-11-09 2018-03-30 东南大学 A kind of calcium swage Ca2Fe2O5Method for preparing catalyst
CN112844391A (en) * 2021-01-13 2021-05-28 宁夏大学 Perovskite type multi-metal composite oxygen carrier and preparation method thereof
CN114011425A (en) * 2021-12-08 2022-02-08 湘潭大学 Bifunctional catalyst, preparation method, application and application method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101746834A (en) * 2009-12-19 2010-06-23 山西大学 Preparation method of perovskite composite oxide La1-xCaxFeO3 superfines
CN102142564A (en) * 2011-02-24 2011-08-03 安徽工业大学 LaFeO3-base cathode material of sulfur-oxygen fuel cell
CN102751508A (en) * 2011-04-19 2012-10-24 三星电子株式会社 Cathode material for a fuel cell, cathode including the cathode material, and a solid oxide fuel cell including the cathode material
CN103449536A (en) * 2013-08-30 2013-12-18 华北水利水电大学 Preparation method of perovskite type nano Nd1-xMgxCoO3

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101746834A (en) * 2009-12-19 2010-06-23 山西大学 Preparation method of perovskite composite oxide La1-xCaxFeO3 superfines
CN102142564A (en) * 2011-02-24 2011-08-03 安徽工业大学 LaFeO3-base cathode material of sulfur-oxygen fuel cell
CN102751508A (en) * 2011-04-19 2012-10-24 三星电子株式会社 Cathode material for a fuel cell, cathode including the cathode material, and a solid oxide fuel cell including the cathode material
CN103449536A (en) * 2013-08-30 2013-12-18 华北水利水电大学 Preparation method of perovskite type nano Nd1-xMgxCoO3

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107857301A (en) * 2017-11-09 2018-03-30 东南大学 A kind of calcium swage Ca2Fe2O5Method for preparing catalyst
CN112844391A (en) * 2021-01-13 2021-05-28 宁夏大学 Perovskite type multi-metal composite oxygen carrier and preparation method thereof
CN114011425A (en) * 2021-12-08 2022-02-08 湘潭大学 Bifunctional catalyst, preparation method, application and application method thereof
CN114011425B (en) * 2021-12-08 2023-12-05 湘潭大学 Dual-function catalyst and preparation method and application method thereof

Also Published As

Publication number Publication date
CN104591722B (en) 2016-06-08

Similar Documents

Publication Publication Date Title
CN109759077B (en) Perovskite oxide catalyst and preparation method and application thereof
Zou et al. Self-generated template pathway to high-surface-area zinc aluminate spinel with mesopore network from a single-source inorganic precursor
CN102531050B (en) Method for preparing TiO2 (B) nano wires and application of prepared TiO2 (B) nano wires
Shan et al. Acid etching-induced in situ growth of λ-MnO2 over CoMn spinel for low-temperature volatile organic compound oxidation
Riaz et al. Electrospun manganese-based perovskites as efficient oxygen exchange redox materials for improved solar thermochemical CO2 splitting
Murugan et al. Pure and Co doped CeO2 nanostructure electrodes with enhanced electrochemical performance for energy storage applications
CN106865506B (en) It is a kind of to form controllable nickel cobalt compound nano line and the preparation method and application thereof
Gao et al. Lattice expansion in optimally doped manganese oxide: an effective structural parameter for enhanced thermochemical water splitting
CN101311360B (en) Synthetic method for one-dimensional single crystal bismuth oxide nano material
CN103240073B (en) Zn<2+>-doped BiVO4 visible-light-driven photocatalyst and preparation method thereof
CN103991899A (en) Preparation method of porous flowerlike stannic oxide micro-nano structure
CN105023762B (en) A kind of foliaceous CuO NiO composite construction nano materials and preparation method thereof
CN113308228A (en) Porous composite calcium-based particles and preparation method and application thereof
CN104291382A (en) Preparation method of lanthanum ferrite porous micro-spheres
Hsu et al. Green synthesis of nano-Co3O4 by Microbial Induced Precipitation (MIP) process using Bacillus pasteurii and its application as supercapacitor
CN103374430B (en) High-stability oxygen carrier, preparation method and applications
Jiang et al. Properties and reactivity of LaCuxNi1− xO3 perovskites in chemical-looping combustion for mid-temperature solar-thermal energy storage
CN111933899B (en) Composite oxide electrode material and preparation method thereof
CN104591722A (en) Perovskite-type nanometer material and preparation method thereof
Zheng et al. Role of oxygen vacancy ordering and channel formation in tuning intercalation pseudocapacitance in Mo single-ion-implanted CeO2–x nanoflakes
CN106423178B (en) A kind of Er ions cobalt acid zinc photochemical catalyst raw powder's production technology and application
CN109706479A (en) A kind of sheet V3S4Preparation and its electrocatalysis characteristic application
CN104591302B (en) A kind of calcium-titanium ore type nano material and preparation method thereof
Gagrani et al. Calcium manganese oxides as biomimetic catalysts in energy applications: A short review
CN104091930A (en) Preparation method of TiO2-Co3O4 nano composite with dual-composite characteristic structure

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: 20160608

Termination date: 20170105

CF01 Termination of patent right due to non-payment of annual fee