CN100337353C - Method for preparing Pt-Ru-NI/C catalyst in use for fuel cell of direct alcohols - Google Patents
Method for preparing Pt-Ru-NI/C catalyst in use for fuel cell of direct alcohols Download PDFInfo
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- CN100337353C CN100337353C CNB2005100100871A CN200510010087A CN100337353C CN 100337353 C CN100337353 C CN 100337353C CN B2005100100871 A CNB2005100100871 A CN B2005100100871A CN 200510010087 A CN200510010087 A CN 200510010087A CN 100337353 C CN100337353 C CN 100337353C
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- catalyst
- preparation
- fuel battery
- alcohol fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The present invention provides a method for preparing a Pt-Ru-Ni/C catalyst for a direct alcohol fuel cell, which relates to a preparation technology of a catalyst for a direct alcohol fuel cell. The present invention aims to solve the problem that the existing cell catalyst has the disadvantages of high price and limited resource. The present invention comprises the following steps: a carbon carrier undergone hydrophilic treatment is added to a mixed solution of deionized water and isopropyl alcohol; Pt, Ru and Ni precursors are added to slurry containing carbon and uniformly dispersed; the pH value of the Pt, Ru and Ni precursors containing carbon is regulated to 3 to 10; the obtained slurry is heated to 50 to 90 DEG C; a borohydride reducing agent (NaBH4) is added for reduction for 1 to 5 hours; a Pt-Ru-Ni/C catalyst is repeatedly cleaned by ultra pure water for removing interfering ions; the obtained Pt-Ru-Ni/C catalyst is dried for 1 to 6 hours under the vacuum condition of 80 to 130DEG C. The present invention has the advantages of having high activity for the electrocatalytic oxidation of alcohol, reducing the use amount of noble metal, lowering the cost of the fuel cell and having simple technology, abundant used material resources and low price.
Description
Technical field:
The present invention relates to a kind of direct alcohol fuel battery Preparation of catalysts technology.
Background technology:
Directly alcohol fuel battery (DMFC or DAFC) is a fuel with liquid state or gaseous methanol or ethanol, need not external reformer unit, has the energy conversion efficiency height, pollution-free, system configuration is simple, energy density is high and fuel carries and replenishes advantages such as convenient, is considered to the best substitute electric power of mobile phone, cell phone and notebook computer.Yet, this types of fuel cells two problems that need to be resolved hurrily in the basic research field at present: the one, research and development stop or reduce the novel proton exchange membranes of alcohols penetrating power, and the 2nd, improve the electrode catalyst activity.Directly the electroxidation activity of methyl alcohol or ethanol is not high at low temperatures for alcohol fuel battery, and serious polarization is the main cause of its loss in efficiency, needs further to improve the activity of alcohols anode electrocatalyst.The anode catalyst of the direct alcohol fuel battery of current research mainly is the higher binary platinum alloy of bullion content, mainly contain with carbon (C) is platinum-molybdenum (Pt-Mo), platinum-Xi (Pt-Sn), platinum-ruthenium (Pt-Ru) and the platinum-tungsten (Pt-W) etc. of carrier, wherein the Pt-Ru/C binary catalyst is the ability of the anti-preferably CO of having of generally acknowledging ability of poisoning and higher anodic oxidation of methanol, has obtained using widely in direct methanol fuel cell.But this catalyst costs an arm and a leg, resource-constrained, thus cause direct alcohol fuel battery to cost an arm and a leg, be difficult to carry out commercialization.Therefore people wish to improve as much as possible the activity and the utilance of metallic catalyst, reduce the cost of catalyst.Although in bicomponent system, the Pt-Ru alloy is the highest to the catalytic activity of methyl alcohol, but by adding the adsorption property that another or several transition metal further improve its active surface phase on this basis again, improve activity of such catalysts, the consumption that reduces noble metal also is very significant.For practicability and the industrialization that realizes direct alcohol fuel battery, it is abundanter to seek resource, and price is cheaper, the anode catalyst that catalytic activity is high.
Summary of the invention:
The objective of the invention is to cost an arm and a leg for solving existing cell catalyst, the problem of resource-constrained provides a kind of direct alcohol fuel battery Pt-Ru-Ni/C Preparation of catalysts method.The present invention has that technology is simple, material therefor aboundresources, cheap, characteristics that catalytic activity is high.The present invention comprises following steps: one, will join in the mixed solution of deionized water and isopropyl alcohol through the carbon carrier of hydrophilic treated, and be uniformly dispersed, and make the carbon containing slurries; Two, Pt, Ru and Ni compound presoma are joined in the finely dispersed carbon containing slurries, Pt, Ru and Ni compound presoma are dispersed on the carbon carrier; Three, finely dispersed carbon being carried Pt, Ru and Ni compound presoma slurries adjusting pH value is 3～10; Four, the slurries that obtain are warmed up to 50～90 ℃, add reducing agent, reduce and formed reducing solution in 1～5 hour; Five, reducing solution is rinsed well with ultra-pure water, under 80～130 ℃ of vacuum conditions, got final product in dry 1～6 hour.The metal molar ratio of described Pt, Ru and Ni is 4～7: 2～5: 1～3.Described reducing agent is sodium borohydride or potassium borohydride.The volume ratio of deionized water and isopropyl alcohol is 1: 1 in described deionized water and the isopropyl alcohol mixture.Described Pt presoma is H
2PtCl
6, Pt (NH
3)
2(NO
2)
2Or Pt (NH
3)
4Cl
2, the Ru presoma is RuCl
3, Ru (NO) (NO
3)
3Or Ru (NH
3)
4Cl
2The Ni presoma is NiCl
2Or Ni (NO
3)
2The Pt-Ru-Ni/C catalyst particle size that the present invention makes is little, and particle diameter is 3～5nm; Have bigger electrochemistry specific area, its electrochemistry specific area is at 58.2～75.5m
2Between/the g, be used for direct alcohol fuel battery.Its beneficial effect is: improved ability that the anti-CO of catalyst poisons, the alcohols catalytic oxidation is had very high activity, reduced the consumption of noble metal, the cost that has reduced fuel cell, simple, the material therefor aboundresources, cheap of technology simultaneously.The utilization electrochemical test method has been tested the electrocatalytic oxidation property of catalyst of the present invention to methyl alcohol and ethanol, found that: the Pt-Ru-Ni/C catalyst performance of the present invention's preparation is more excellent more than the Pt-Ru/C catalyst of same process preparation.
Description of drawings:
Fig. 1 is that the Pt-Ru/C catalyst of the prepared Pt-Ru-Ni/C catalyst of the present invention and same process condition preparation is at 0.5mol/L H
2SO
4+ 0.5mol/L CH
3To the cyclic voltammetry curve comparison diagram of anodic oxidation of methanol, sweep speed is 0.02V/s in the OH mixed solution, and 25 ℃, Fig. 2 is that the Pt-Ru/C catalyst of the prepared Pt-Ru-Ni/C catalyst of the present invention and same process condition preparation is at 0.5mol/L H
2SO
4+ 0.5mol/L CH
3CH
2To the cyclic voltammetry curve comparison diagram of ethanol catalytic oxidation, sweep speed is 0.02V/s in the OH mixed solution, and 25 ℃, Fig. 3 is that the prepared Pt-Ru-Ni/C catalyst of the present invention is at 0.5mol/L H
2SO
4To the cyclic voltammetry curve comparison diagram of CO catalytic oxidation, sweep speed is 0.02V/s in the solution, and 25 ℃, Fig. 4 is that the Pt-Ru/C catalyst of the prepared Pt-Ru-Ni/C catalyst of the present invention and same process condition preparation is at 0.5mol/LH
2SO
4+ 0.5mol/L CH
3To the timing Ampere currents curve comparison diagram of anodic oxidation of methanol, Fig. 5 is that the Pt-Ru/C catalyst of prepared Pt-Ru-Ni/C catalyst of the present invention and the preparation of same process condition is at 0.5mol/L H in the OH mixed solution
2SO
4+ 0.5mol/L CH
3CH
2In the OH mixed solution to the timing Ampere currents curve comparison diagram of ethanol catalytic oxidation.
Embodiment:
Embodiment one: present embodiment realizes by following steps: one, will join in the mixed solution of deionized water and isopropyl alcohol through the carbon carrier of hydrophilic treated, and be uniformly dispersed, and make the carbon containing slurries; Two, Pt, Ru and Ni compound presoma are joined in the finely dispersed carbon containing slurries, Pt, Ru and Ni compound presoma are dispersed on the carbon carrier; Three, finely dispersed carbon being carried Pt, Ru and Ni compound presoma slurries adjusting pH value is 3～10; Four, the slurries that obtain are warmed up to 50～90 ℃, add reducing agent, reduce and formed reducing solution in 1～5 hour; Five, reducing solution is rinsed well with ultra-pure water, drying got final product (promptly making the Pt-Ru-Ni/C three-way catalyst) in 1～6 hour under 80～130 ℃ of vacuum conditions.The metal molar ratio of described Pt, Ru and Ni is 4～7: 2～5: 1～3.Described reducing agent is sodium borohydride or potassium borohydride.The volume ratio of deionized water and isopropyl alcohol is 1: 1 in described deionized water and the isopropyl alcohol mixture.Described Pt presoma is H
2PtCl
6, Pt (NH
3)
2(NO
2)
2Or Pt (NH
3)
4Cl
2The Ru presoma is RuCl
3, Ru (NO) (NO
3)
3Or Ru (NH
3)
4Cl
2The Ni presoma is NiCl
2Or Ni (NO
3)
2
Embodiment two: regulating the pH value in the described step 3 of present embodiment is 6～8.Other step is identical with embodiment one.
Embodiment three: the temperature of slurries is 60～90 ℃ in the described step 4 of present embodiment.Other step is identical with embodiment one.
Embodiment four: the recovery time in the described step 4 of present embodiment is 3～4 hours.Other step is identical with embodiment one.
Embodiment five: the temperature in the described step 5 of present embodiment is 100～120 ℃.Other step is identical with embodiment one.
Embodiment six: be 4～6 hours the drying time in the described step 5 of present embodiment.Other step is identical with embodiment one.
Embodiment seven: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 2ml 0.0965mol/L H
2PtCl
6, 0.33ml 0.2982mol/L RuCl
3With 0.65ml 0.05mol/LNiCl
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 8, and reducing solution is warmed up to 80 ℃, adds excessive sodium borohydride reduction 3 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 110 ℃ of vacuum conditions dry 5 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-5nm, and the electrochemistry specific area is 67.7m
2/ g.
Embodiment eight: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 2ml 0.0965mol/L H
2PtCl
6, 0.33ml 0.2982mol/L RuCl
3With 0.65ml 0.05mol/LNiCl
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 6, and reducing solution is warmed up to 90 ℃, adds excessive sodium borohydride reduction 4 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 120 ℃ of vacuum conditions dry 4 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-5nm, and the electrochemistry specific area is 69.2m
2/ g.
Embodiment nine: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 2ml 0.0965mol/L H
2PtCl
6, 0.33ml 0.2982mol/L RuCl
3With 0.65ml 0.05mol/L NiCl
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 8, and reducing solution is warmed up to 60 ℃, adds excessive sodium borohydride reduction 4 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 100 ℃ of vacuum conditions dry 6 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-5nm, and the electrochemistry specific area is 64.5m
2/ g.
Embodiment ten: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 1.65ml 0.0965mol/L H
2PtCl
6, 0.40ml 0.2982mol/L RuCl
3With 2.38ml 0.05mol/L NiCl
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 8, and reducing solution is warmed up to 80 ℃, adds excessive sodium borohydride reduction 3 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 120 ℃ of vacuum conditions dry 5 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-5nm, and the electrochemistry specific area is 58.2m
2/ g.
Embodiment 11: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 2.1ml 0.0965mol/L H
2PtCl
6, 0.23ml 0.2982mol/L RuCl
3With 1.34ml 0.05mol/L NiCl
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 8, and reducing solution is warmed up to 80 ℃, adds excessive sodium borohydride reduction 3 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 110 ℃ of vacuum conditions dry 5 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-5nm, and the electrochemistry specific area is 62.8m
2/ g.
Embodiment 12: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 13.69ml 0.0143mol/L Pt (NH
3)
4Cl
2, 5.87ml 0.01668mol/LRu (NH
3)
4Cl
2With 0.65ml 0.05mol/L NiCl
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 8, and reducing solution is warmed up to 80 ℃, adds excessive sodium borohydride reduction 3 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 110 ℃ of vacuum conditions dry 5 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-5nm, and the electrochemistry specific area is 65.8m
2/ g.
Embodiment 13: present embodiment takes by weighing the Vulcan XC-72 carbon dust of 200mg through the Cabot company production of hydrophilic treated, joins in the mixed solution of deionized water and isopropyl alcohol, is uniformly dispersed; Add 7.86ml 0.0249mol/L Pt (NH
3)
2(NO
2)
2, 1.55ml 0.0633mol/LRu (NO) (NO
3)
3With 0.65ml 0.05mol/L Ni (NO
3)
2, it is dispersed on the carbon carrier, adding NaOH adjusting pH value is 8, and reducing solution is warmed up to 80 ℃, adds excessive sodium borohydride reduction 3 hours.Then reducing solution is cleaned repeatedly with hot ultrapure deionized water (18.2M Ω cm), remove foreign ion; Gained Pt-Ru-Ni/C catalyst under 120 ℃ of vacuum conditions dry 5 hours.Make the Pt-Ru-Ni/C catalyst, particle diameter is 3-4 nm, and the electrochemistry specific area is 75.6m
2/ g.
Claims (9)
1, a kind of direct alcohol fuel battery Pt-Ru-Ni/C Preparation of catalysts method, it is characterized in that it comprises following steps: one, will join through the carbon carrier of hydrophilic treated in the mixed solution of deionized water and isopropyl alcohol, be uniformly dispersed, make the carbon containing slurries; Two, Pt, Ru and Ni compound presoma are joined in the finely dispersed carbon containing slurries, Pt, Ru and Ni compound presoma are dispersed on the carbon carrier; Three, finely dispersed carbon being carried Pt, Ru and Ni compound presoma slurries adjusting pH value is 3～10; Four, the slurries that obtain are warmed up to 50～90 ℃, add reducing agent, reduce and formed reducing solution in 1～5 hour; Five, reducing solution is rinsed well with ultra-pure water, under 80～130 ℃ of vacuum conditions, got final product in dry 1～6 hour; Described Pt presoma is H
2PtCl
6, Pt (NH
3)
2(NO
2)
2Or Pt (NH
3)
4Cl
2The Ru presoma is RuCl
3, Ru (NO) (NO
3)
3Or Ru (NH
3)
4Cl
2The Ni presoma is NiCl
2Or Ni (NO
3)
2
2, direct alcohol fuel battery according to claim 1 is characterized in that the metal molar ratio of described Pt, Ru and Ni is 4～7: 2～5: 1～3 with Pt-Ru-Ni/C Preparation of catalysts method.
3, direct alcohol fuel battery according to claim 1 is characterized in that with Pt-Ru-Ni/C Preparation of catalysts method described reducing agent is sodium borohydride or potassium borohydride.
4, direct alcohol fuel battery according to claim 1 is with Pt-Ru-Ni/C Preparation of catalysts method, it is characterized in that the volume ratio of deionized water and isopropyl alcohol is 1: 1 in described deionized water and the isopropyl alcohol mixture.
5, direct alcohol fuel battery according to claim 1 is characterized in that with Pt-Ru-Ni/C Preparation of catalysts method regulating the pH value in the described step 3 is 6～8.
6, direct alcohol fuel battery according to claim 1 Pt-Ru-Ni/C Preparation of catalysts method, the temperature that it is characterized in that slurries in the described step 4 is 60～90 ℃.
7, direct alcohol fuel battery according to claim 1 is characterized in that with Pt-Ru-Ni/C Preparation of catalysts method the recovery time in the described step 4 is 3～4 hours.
8, direct alcohol fuel battery according to claim 1 is characterized in that with Pt-Ru-Ni/C Preparation of catalysts method the temperature in the described step 5 is 100～120 ℃.
9, direct alcohol fuel battery according to claim 1 is characterized in that with Pt-Ru-Ni/C Preparation of catalysts method be 4～6 hours the drying time in the described step 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100100871A CN100337353C (en) | 2005-06-16 | 2005-06-16 | Method for preparing Pt-Ru-NI/C catalyst in use for fuel cell of direct alcohols |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100100871A CN100337353C (en) | 2005-06-16 | 2005-06-16 | Method for preparing Pt-Ru-NI/C catalyst in use for fuel cell of direct alcohols |
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| Publication Number | Publication Date |
|---|---|
| CN1697219A CN1697219A (en) | 2005-11-16 |
| CN100337353C true CN100337353C (en) | 2007-09-12 |
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ID=35349818
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|---|---|---|---|
| CNB2005100100871A Expired - Fee Related CN100337353C (en) | 2005-06-16 | 2005-06-16 | Method for preparing Pt-Ru-NI/C catalyst in use for fuel cell of direct alcohols |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667645B (en) * | 2008-09-03 | 2012-05-23 | 中国科学院大连化学物理研究所 | Application of Ni-based catalyst in anode of direct borohydride fuel cell |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101497667B1 (en) * | 2013-06-13 | 2015-03-03 | 고려대학교 산학협력단 | PtRuIrNi quaternary alloy catalyst, method for manufacturing the same, and fuel cell comprising the same |
| CN104393312B (en) * | 2014-11-19 | 2016-10-12 | 中国科学院长春应用化学研究所 | High activity, the high stability DMFC preparation method of very low platinum carrying amount Pt-CoP/C anode electrocatalyst |
| CN114122424B (en) * | 2021-10-26 | 2023-11-10 | 合肥师范学院 | Preparation method of hydrophilic carbon-based Ni nano ORR electrocatalyst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002358970A (en) * | 2001-06-04 | 2002-12-13 | Yuasa Corp | Fuel pole used for liquid fuel direct supply fuel cell and its manufacturing method |
| US6517965B1 (en) * | 1999-02-26 | 2003-02-11 | Symyx Technologies, Inc. | Platinum-ruthenium-nickel alloy for use as a fuel cell catalyst |
| CN1514505A (en) * | 2003-04-17 | 2004-07-21 | 江苏双登电源有限公司 | Preparation method of direct alcohol kind fuel battery negative electrode |
| CN1601788A (en) * | 2004-10-08 | 2005-03-30 | 中国科学院长春应用化学研究所 | Method of preparing anode catalyst for direct methyl alcohol fuel cell |
-
2005
- 2005-06-16 CN CNB2005100100871A patent/CN100337353C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6517965B1 (en) * | 1999-02-26 | 2003-02-11 | Symyx Technologies, Inc. | Platinum-ruthenium-nickel alloy for use as a fuel cell catalyst |
| US20040166396A1 (en) * | 1999-02-26 | 2004-08-26 | Symyx Technologies, Inc. | Platinum-ruthenium-nickel fuel cell electrocatalyst |
| JP2002358970A (en) * | 2001-06-04 | 2002-12-13 | Yuasa Corp | Fuel pole used for liquid fuel direct supply fuel cell and its manufacturing method |
| CN1514505A (en) * | 2003-04-17 | 2004-07-21 | 江苏双登电源有限公司 | Preparation method of direct alcohol kind fuel battery negative electrode |
| CN1601788A (en) * | 2004-10-08 | 2005-03-30 | 中国科学院长春应用化学研究所 | Method of preparing anode catalyst for direct methyl alcohol fuel cell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667645B (en) * | 2008-09-03 | 2012-05-23 | 中国科学院大连化学物理研究所 | Application of Ni-based catalyst in anode of direct borohydride fuel cell |
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| CN1697219A (en) | 2005-11-16 |
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