CN101409354A - Compound film electrode for direct borohydride fuel cell - Google Patents

Compound film electrode for direct borohydride fuel cell Download PDF

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CN101409354A
CN101409354A CNA200810137556XA CN200810137556A CN101409354A CN 101409354 A CN101409354 A CN 101409354A CN A200810137556X A CNA200810137556X A CN A200810137556XA CN 200810137556 A CN200810137556 A CN 200810137556A CN 101409354 A CN101409354 A CN 101409354A
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fuel cell
catalytic oxidation
hydrogen
active component
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CN100593877C (en
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尹鸽平
王广进
邵玉艳
王振波
杜春雨
程新群
左朋建
高云智
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Harbin Institute of Technology
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    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract

A composite membrane electrode of a direct borohydride fuel cell relates to a fuel cell membrane electrode. The composite membrane electrode solves the problems that the hydrogen produced by hydrolysis of the direct borohydride fuel cell can not be directly used and the overall utilization rate of the cell fuel is low. The composite membrane electrode of the direct borohydride fuel cell is composed of an anode, a cathode (6) and an electrolyte membrane (3). The anode and the cathode (6) are respectively arranged on two sides of the electrolyte membrane and parallel to the electrolyte membrane; the anode, the cathode and the electrolyte membrane are hot pressed to a membrane electrode; the anode is composed of a borohydride-radical catalytic oxide anode (5) which is arranged on the lower part of the anode and a hydrogen catalytic oxide anode (4) which is arranged on an upper part of the anode. The side reaction of the borohydride radical is unavoidable on the borohydride-radical catalytic oxide anode, and the hydrogen is produced and can continue to react as the fuel on the hydrogen catalytic oxide anode, which can improve the overall utilization rate of the fuel and causing the structure of the whole membrane electrode system to be more compact and safer.

Description

A kind of compound film electrode of direct borohydride fuel cell
Technical field
The present invention relates to a kind of fuel cell compound film electrode.
Background technology
Fuel cell since have high efficiency, pollution-free, fuel source extensively, simple structure is convenient to advantages such as maintaining, thereby has good application prospects.In fuel cell, Proton Exchange Membrane Fuel Cells (PEMFC) is a kind of that research is maximum, technology is also ripe relatively.Boron hydride is because hydrogeneous abundant, is 113.56kg/m as the hydrogeneous volume capacity of sodium borohydride 3, be studied fuel as fuel cell.Boron hydride is used for fuel cell indirect and direct dual mode.Indirect mode is earlier the boron hydride catalyzing hydrolysis to be produced hydrogen, used as the fuel of PEMFC, but has only utilized half of boron hydride coulomb electric charge like this, because hydrolytic process does not produce electric energy, the hydrolysis of 1mol boron hydrogen root produces 2mol H 2, electroxidation has the 4mol electron transfer; And the direct electroxidation of 1mol boron hydrogen root has the 8mol electron transfer.Direct borohydride fuel cell has higher theoretical open circuit voltage (1.64V), and the reactivity of boron hydride also than hydrogen and methyl alcohol height, needn't be used noble metal catalyst, has reduced production cost.Therefore, direct borohydride fuel cell has become a trend of fuel cell development.
At present, the research of direct borohydride fuel cell is more and more.But also there are some researches show simultaneously, though boron hydride is very stable in alkaline solution, but there be (electrochemical oxidation to boron hydride has the catalyst of catalytic action simultaneously its hydrolysis also to be had certain catalytic capability) at catalyst or under the situation of higher temperature, there is hydrolysis to a certain degree inevitably in boron hydride, thereby causes the loss of fuel.There is the researcher once to propose in solution, to add inhibitor and reduces hydrolysis, but still can't avoid hydrolysis to take place fully.In order to remove hydrogen to reduce the interior pressure of battery, the scientific research personnel has done a lot of effort, as: the Chinese patent boron compound is battery pile structure (the publication number CN1549370 of the fuel cell of fuel, open day 2004.11.24) adopt hydrogen bearing alloy to absorb the hydrogen that hydrolysis produces, hydrogen remover (the publication number CN1549381 of Chinese patent boron compound fuel cell, open day 2004.11.24) then adopts simple gas-liquid separation device that hydrogen is separated with the fuel waste liquid, all make utilization ratio of raw materials reduce but do like this.
Summary of the invention
A kind of compound film electrode of direct borohydride fuel cell has solved the problem that hydrogen can't utilize, the battery fuel overall utilization is low that the direct borohydride fuel cell hydrolysis produces.
The compound film electrode of direct borohydride fuel cell is made of anode, negative electrode and dielectric film, and anode lays respectively at dielectric film both sides and parallel with dielectric film with negative electrode, and the three is hot pressed into membrane electrode; Anode is made of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode, and hydrogen catalytic oxidation anode is positioned at anode top, and boron hydrogen root catalytic oxidation anode is positioned at the anode bottom.
The present invention compares with the existing membrane electrode of fuel cell, maximum is not both: boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode are in the same side parallel with film, the two is simultaneously as galvanic anode, and hydrogen catalytic oxidation anode is in the top of boron hydrogen root catalytic oxidation anode.Because when carrying out being the anode-catalyzed oxidation reaction of fuel with boron hydrogen root on the boron hydrogen root catalytic oxidation anode, can hydrolytic side reactions take place inevitably and produce hydrogen; And hydrogen also is a kind of fuel of fuel cell, and density is little, can accumulate in the top of boron hydride solution, so hydrogen can be further used as fuel and react on the hydrogen catalytic oxidation anode that is positioned at above the anode, thereby improves the overall utilization of fuel.The fuel availability of using direct borohydride fuel cell of the present invention can be the fuel availability raising 10%～50% of single boron hydrogen root catalytic oxidation anode film electrode battery than anode.
The present invention can improve the fail safe of direct borohydride fuel cell.Because carry out boron hydrogen root on the boron hydrogen root catalytic oxidation anode when being the anodic oxidation reactions of fuel, can hydrolytic side reactions take place inevitably and produce hydrogen, if can not in time get rid of, can increase inner pressure of battery, and hydrogen itself is a kind of inflammable and explosive gas, has potential danger.Membrane electrode the first half that the present invention obtains is a hydrogen catalytic oxidation anode, can hydrogen catalyzed reaction make it to consume, thereby reduces inner pressure of battery.
In addition,, can make cell integrated simple and compact for structurely, be convenient to produce and safeguard, reduce the battery cost boron hydrogen root catalytic oxidation anode and the shared dielectric film of hydrogen catalytic oxidation anode and a negative electrode.Utilize the PEMFC of hydrogen with other and manage to absorb or the direct borohydride fuel cell of getting rid of hydrogen is compared, direct borohydride fuel cell compound film electrode of the present invention can make the volume-diminished 10%～90% of direct borohydride fuel cell.
Description of drawings
Fig. 1 is a direct borohydride fuel cell compound film electrode structure chart.
Fig. 2 is a front section view of using the fuel cell of embodiment 24 membrane electrode A.
Fig. 3 is the polarization curve of embodiment 24 membrane electrode A and single boron hydrogen root catalytic oxidation anode film electrode B.Among the figure-polarization curve of ■-expression compound film electrode A ,-● the polarization curve of the single boron hydrogen root catalytic oxidation anode film electrode B of-expression.
Fig. 4 is embodiment 24 membrane electrode A and single boron hydrogen root catalytic oxidation anode film electrode B power density curve chart.Among the figure-the power density curve of ■-expression compound film electrode A ,-● the power density curve of the single boron hydrogen root catalytic oxidation anode film electrode B of-expression.
Embodiment
Embodiment one: the compound film electrode of this embodiment direct borohydride fuel cell is made of anode, negative electrode 6 and dielectric film 3, and anode lays respectively at dielectric film 3 both sides and parallel with dielectric film 3 with negative electrode 6, and the three is hot pressed into membrane electrode; Anode is made of boron hydrogen root catalytic oxidation anode 5 and hydrogen catalytic oxidation anode 4, and hydrogen catalytic oxidation anode 4 is positioned at anode top, and boron hydrogen root catalytic oxidation anode 5 is positioned at the anode bottom.
Embodiment two: what this embodiment and embodiment one were different is: boron hydrogen root catalytic oxidation anode 5 is made by carbon paper and the catalyst that is sprayed on the carbon paper, and carbon paper and catalyst all carry out hydrophilic treated; Catalyst directly adopts active component loose structure, active component powder particle or is made up of active component and carrier; Wherein active component is Pt, Au, Ni, Pd, Ag, Ir, Os, Sn, Mo, W, V, PtO, PtO 2, NiO, NiO 2, Ni (OH) 2, PdO, PdO 2, AgO, Ag 2O, SnO 2, MoO 2, MoO 3, WC, WO 2, WO 3, V 2O 5In one or more, when active component was two or more, each constituent was pressed arbitrary proportion and is mixed; Carrier is carbon dust, carbon nano-tube.Other is identical with embodiment one.
Embodiment three: what this embodiment and embodiment two were different is: catalyst directly adopts the active component loose structure without carrier, and wherein active component is Pt, Au, Ni, Pd, Ag, Ir, Os, Sn, Mo, W, V, PtO, PtO 2, NiO, NiO 2, Ni (OH) 2, PdO, PdO 2, AgO, Ag 2O, SnO 2, MoO 2, MoO 3, WC, WO 2, WO 3, V 2O 5In one or more; When active component was two or more, each constituent was pressed arbitrary proportion and is mixed.Other is identical with embodiment two.
Embodiment four: what this embodiment and embodiment two were different is: catalyst is the active component powder particle, and wherein active component is Pt, Au, Ni, Pd, Ag, Ir, Os, Sn, Mo, W, V, PtO, PtO 2, NiO, NiO 2, Ni (OH) 2, PdO, PdO 2, AgO, Ag 2O, SnO 2, MoO 2, MoO 3, WC, WO 2, WO 3, V 2O 5In one or more; When active component was two or more, each constituent was pressed arbitrary proportion and is mixed.Other is identical with embodiment two.
Embodiment five: what this embodiment and embodiment two were different is: catalyst is made up of active component and carrier, and wherein active component is Pt, Au, Ni, Pd, Ag, Ir, Os, Sn, Mo, W, V, PtO, PtO 2, NiO, NiO 2, Ni (OH) 2, PdO, PdO 2, AgO, Ag 2O, SnO 2, MoO 2, MoO 3, WC, WO 2, WO 3, V 2O 5In one or more; When active component was two or more, each constituent was pressed arbitrary proportion and is mixed; Carrier is carbon dust, carbon nano-tube.Other is identical with embodiment two.
Embodiment six: what this embodiment and embodiment two were different is: the catalyst activity composition carrying capacity of boron hydrogen root catalytic oxidation anode 5 is 0.1mg/cm 2～10mg/cm 2Other is identical with embodiment two.
Embodiment seven: what this embodiment and embodiment six were different is: the catalyst activity composition carrying capacity of boron hydrogen root catalytic oxidation anode 5 is 1mg/cm 2～9mg/cm 2Other is identical with embodiment six.
Embodiment eight: what this embodiment and embodiment six were different is: the catalyst activity composition carrying capacity of boron hydrogen root catalytic oxidation anode 5 is 3mg/cm 2～8mg/cm 2Other is identical with embodiment six.
Embodiment nine: what this embodiment and embodiment six were different is: the catalyst activity composition carrying capacity of boron hydrogen root catalytic oxidation anode 5 is 5mg/cm 2Other is identical with embodiment six.
Embodiment ten: what this embodiment and embodiment one were different is: hydrogen catalytic oxidation anode 4 is made by carbon paper and the catalyst that is sprayed on the carbon paper, and carbon paper and catalyst all carry out hydrophobic to be handled; Catalyst directly adopts active component loose structure, active component powder particle or is made up of active component and carrier; Wherein active component is Pt, Ru, Pd, Sn, Co, Mo, Ni, Fe, Bi, Pb, PtO, PtO 2, RuO 2, RuO 3, RuO 4, PdO, PdO 2, SnO 2, CoO, Co 2O 3, Co 3O 4, Co (OH) 2, MoO 2, MoO 3, NiO, NiO 2, Ni (OH) 2, Fe 2O 3, Fe 3O 4In one or more, when active component was two or more, each constituent was pressed arbitrary proportion and is mixed; Carrier is carbon dust, carbon nano-tube.Other is identical with embodiment one.
Embodiment 11: what this embodiment and embodiment ten were different is: the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode 4 is 0.1mg/cm 2～10mg/cm 2Other is identical with embodiment ten.
Embodiment 12: what this embodiment and embodiment 11 were different is: the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode 4 is 0.5mg/cm 2～9mg/cm 2Other is identical with embodiment 11.
Embodiment 13: what this embodiment and embodiment 11 were different is: the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode 4 is 3mg/cm 2～8mg/cm 2Other is identical with embodiment 11.
Embodiment 14: what this embodiment and embodiment 11 were different is: the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode 4 is 4mg/cm 2～6mg/cm 2Other is identical with embodiment 11.
Embodiment 15: what this embodiment and embodiment 11 were different is: the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode 4 is 5mg/cm 2Other is identical with embodiment 11.
Embodiment 16: what this embodiment and embodiment one were different is: the surface area ratio of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode is 1: 0.1～1: 10.It is identical with embodiment one.
Embodiment 17: what this embodiment and embodiment 16 were different is: the surface area ratio of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode is 1: 0.5.It is identical with embodiment 16.
Embodiment 18: what this embodiment and embodiment 16 were different is: the surface area ratio of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode is 1: 4.It is identical with embodiment 16.
Embodiment 19: what this embodiment and embodiment 16 were different is: the surface area ratio of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode is 1: 8.It is identical with embodiment 16
Embodiment 20: what this embodiment and embodiment one were different is: negative electrode is an air diffusion electrode.Other is identical with embodiment one.
This embodiment negative electrode is made by carbon paper and the catalyst that is sprayed on the carbon paper, and carbon paper and catalyst all carry out hydrophobic to be handled; Catalyst directly adopts active component loose structure, active component powder particle or is made up of active component and carrier; Wherein active component is Pt, Pd, Ru, Au, Ni, Co, Fe, Cr, Cu, Ir, Os, Sn, Mo, Mn, W, V, PtO, PtO 2, PdO, PdO 2, RuO 2, RuO 3, RuO 4, NiO, NiO 2, Ni (OH) 2, CoO, Co 2O 3, Co 3O 4, Co (OH) 2, Fe 2O 3, Fe 3O 4,, CuO, Cu 2O, SnO 2, MoO 2, MoO 3, MnO 2, WC, WO 2, WO 3, V 2O 5In one or more, when active component was two or more, each constituent was pressed arbitrary proportion and is mixed; Carrier is carbon dust, carbon nano-tube.
Embodiment 21: what this embodiment and embodiment one were different is: dielectric film (3) is anion-exchange membrane or cation-exchange membrane.Other is identical with embodiment one.
Embodiment 22: what this embodiment and embodiment 21 were different is: anion-exchange membrane is an ammonium type organic polymer amberplex.Other is identical with embodiment 21.
Embodiment 23: what this embodiment and embodiment 21 were different is: cation-exchange membrane is a proton exchange membrane.Other is identical with embodiment 21.
Embodiment 24: the compound film electrode A of this embodiment direct borohydride fuel cell is made of anode, negative electrode and dielectric film, and anode lays respectively at dielectric film both sides and parallel with dielectric film with negative electrode, and the three is hot pressed into membrane electrode; Anode is made of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode, and hydrogen catalytic oxidation anode is positioned at anode top, and boron hydrogen root catalytic oxidation anode is positioned at the anode bottom.Wherein, hydrophilic treated is made and done to boron hydrogen root catalytic oxidation anode by carbon paper and the catalyst that is sprayed on the carbon paper, and catalyst adopts Pt 7Ni 3(40wt.%)/and the C catalyst, the active component carrying capacity is 2mg/cm 2The hydrophobic processing is made and done to hydrogen catalytic oxidation anode by carbon paper and the catalyst that is sprayed on the carbon paper, and wherein catalyst adopts Pt (40wt.%)/C catalyst, and carrying capacity is 2mg/cm 2The surface area ratio of boron hydrogen root catalytic oxidation anode and hydrogen catalytic oxidation anode is 1: 1.Negative electrode is an air diffusion electrode, makes and do the hydrophobic processing by carbon paper and the catalyst that is sprayed on the carbon paper, and catalyst adopts Pt (40wt.%)/C catalyst, and the active component carrying capacity is 2mg/cm 2Dielectric film is a proton exchange membrane.The electrode gross area is 4cm 2(2cm * 2cm), square.Single boron hydrogen root catalytic oxidation anode film electrode B prepares by the following method: boron hydrogen root catalytic oxidation anode adopts Pt 7Ni 3(40wt.%)/and the C catalyst, catalyst loading is 2mg/cm 2Negative electrode all adopts Pt (40wt.%)/C catalyst, and the active component carrying capacity is 2mg/cm 2The electrode gross area is 4cm 2(2cm * 2cm), square.
Fig. 2 is the front section view of the fuel cell of this embodiment of application compound film electrode A.The fuel cell of using this embodiment compound film electrode A mainly comprises anode cavity 1, negative electrode cavity 2, and dielectric film 3, hydrogen catalytic oxidation anode 4, boron hydrogen root catalytic oxidation anode 5 and negative electrode 6.Anode one side has the fuel cavity 1 of a static feed, and a fuel inlet 10 is arranged at the top of fuel cavity, and lower sides has a fuel discharge outlet 11; Above-mentioned fuel cavity adopts the high alkali corrosion resistance material of mechanical strength such as stainless steel, helps like this battery is carried out temperature control and fastening.Its negative electrode one side also has a negative electrode cavity 2, and the upside of this cavity has air (or oxygen) air inlet 12, and downside has air (or oxygen) gas outlet 13; Cavity adopts the high alkali corrosion resistance material of mechanical strength such as stainless steel, helps like this battery is carried out temperature control and fastening.Anode current collector plate 7 and cathode collector plate 8 are arranged, porose or groove on the collector plate between cavity and the electrode respectively.With silicone rubber gasket 9 and fastening bolt 14 electrode current collecting plate and cavity are fixed.Collector plate has two effects: the one, collect and conduction current; The 2nd, compress electrode, electrode is well contacted with dielectric film, reduce contact resistance.Current collecting board element requires its mechanical strength height and good conductivity, selects for use the surface to be coated with the stainless steel material of Au, Ag or Ni.There are terminals to be connected on the collector plate with external circuit, behind external circuit switch closure and fuel cell formation path, oxidation reaction takes place in fuel on hydrogen catalytic oxidation anode 4 and boron hydrogen root catalytic oxidation anode 5, oxygen (from air or pure oxygen) reacts on negative electrode 6, and fuel cell begins outwards to provide electric energy.The reaction that fuel (boron hydride) takes place on boron hydrogen root catalytic oxidation anode is as follows:
BH 4 -+8OH -→BO 2 -+6H 2O+8e -
Figure A20081013755600101
When above-mentioned reaction took place, hydrolytic side reactions to a certain degree took place in fuel inevitably, and its reaction equation is as follows:
BH 4-+2H 2O→4H 2↑+BO 2 -
Like this, just have hydrogen to produce in the fuel, hydrogen is adsorbed onto above the hydrogen catalytic oxidation anode 4 after come-up and oxidation reaction takes place, and reaction equation is as follows:
H 2+2OH -→2H 2O+2e -
Figure A20081013755600102
It is as follows that oxygen (from air or pure oxygen) reacts on negative electrode 6:
O 2+2H 2O+4e -→4OH -
Figure A20081013755600103
In following condition the membrane electrode A and the single boron hydrogen root catalytic oxidation anode film electrode B of specific embodiment 20 are carried out battery testing: temperature is 20 ℃; The passive feed of anode, fuel solution are the NaBH of 1mol/L 4With the NaOH mixed aqueous solution of 6mol/L, the addition of fuel solution and guarantees that fuel solution does not contact with hydrogen catalytic oxidation anode 4 so that the 5 complete submergences of boron hydrogen root catalytic oxidation anode are exceeded in the anode cavity; Negative electrode cavity 2 is uncovered, and air is from breathing.The battery testing result as shown in Figure 3, Figure 4.Fig. 3 is the membrane electrode A of embodiment 24 and the polarization curve of single boron hydrogen root catalytic oxidation anode film electrode B, and Fig. 4 is embodiment 20 compound film electrode A and single boron hydrogen root catalytic oxidation anode film electrode B power density curve chart.
As seen from Figure 3, in current density greater than 10mA/cm 2The time, the degree of polarization of A is significantly less than B, with the voltage of A under the current density greater than B.
As seen from Figure 4, current density is greater than 10mA/cm 2The time, power density is obviously greater than B, and the maximum power density of B is 11mW/cm 2, the maximum power density of A is 14.2mW/cm 2, improved 29.1% than B.This is because NaBH 4Under the catalytic action of Pt, unavoidably can hydrolysis produce H in the process of generation electrochemical reaction 2, behind the compound film electrode of the direct borohydride fuel cell that application the present invention obtains, H 2On the hydrogen catalytic oxidation anode 4 of membrane electrode A, continue reaction and emit electric current, thereby improved the overall utilization of battery fuel.Its fuel overall utilization is 89.2%, is 1.35 times of single boron hydrogen root catalytic oxidation anode film electrode B.

Claims (10)

1. the compound film electrode of a direct borohydride fuel cell, the compound film electrode that it is characterized in that direct borohydride fuel cell is made of anode, negative electrode (6) and dielectric film (3), anode lays respectively at dielectric film (3) both sides and parallel with dielectric film (3) with negative electrode (6), and the three is hot pressed into membrane electrode; Anode is made of boron hydrogen root catalytic oxidation anode (5) and hydrogen catalytic oxidation anode (4), and hydrogen catalytic oxidation anode (4) is positioned at anode top, and boron hydrogen root catalytic oxidation anode (5) is positioned at the anode bottom.
2. the compound film electrode of a kind of direct borohydride fuel cell according to claim 1 is characterized in that boron hydrogen root catalytic oxidation anode (5) made by carbon paper and the catalyst that is sprayed on the carbon paper, and carbon paper and catalyst all carry out hydrophilic treated; Catalyst directly adopts active component loose structure, active component powder particle or is made up of active component and carrier; Wherein active component is Pt, Au, Ni, Pd, Ag, Ir, Os, Sn, Mo, W, V, PtO, PtO 2, NiO, NiO 2, Ni (OH) 2, PdO, PdO 2, AgO, Ag 2O, SnO 2, MoO 2, MoO 3, WC, WO 2, WO 3, V 2O 5In one or more, when active component was two or more, each constituent was pressed arbitrary proportion and is mixed; Carrier is carbon dust, carbon nano-tube.
3. the compound film electrode of a kind of direct borohydride fuel cell according to claim 2 is characterized in that the catalyst activity composition carrying capacity of boron hydrogen root catalytic oxidation anode (5) is 0.1mg/cm 2～10mg/cm 2
4. the compound film electrode of a kind of direct borohydride fuel cell according to claim 1 is characterized in that hydrogen catalytic oxidation anode (4) made by carbon paper and the catalyst that is sprayed on the carbon paper, and carbon paper and catalyst all carry out hydrophobic to be handled; Catalyst directly adopts active component loose structure, active component powder particle or is made up of active component and carrier; Wherein active component is Pt, Ru, Pd, Sn, Co, Mo, Ni, Fe, Bi, Pb, PtO, PtO 2, RuO 2, RuO 3, RuO 4, PdO, PdO 2, SnO 2, CoO, Co 2O 3, Co 3O 4, Co (OH) 2, MoO 2, MoO 3, NiO, NiO 2, Ni (OH) 2, Fe 2O 3, Fe 3O 4, in one or more, when active component was two or more, each constituent was pressed arbitrary proportion and is mixed; Carrier is carbon dust, carbon nano-tube.
5. the compound film electrode of a kind of direct borohydride fuel cell according to claim 4 is characterized in that the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode (4) is 0.1mg/cm 2～10mg/cm 2
6. the compound film electrode of a kind of direct borohydride fuel cell according to claim 5 is characterized in that the catalyst activity composition carrying capacity of hydrogen catalytic oxidation anode (4) is 0.5mg/cm 2～9mg/cm 2
7. the compound film electrode of a kind of direct borohydride fuel cell according to claim 1 is characterized in that the surface area ratio of boron hydrogen root catalytic oxidation anode (5) and hydrogen catalytic oxidation anode (4) is 1: 0.1～10.
8. the compound film electrode of a kind of direct borohydride fuel cell according to claim 1 is characterized in that negative electrode (6) is the oxygen gas diffusion electrode.
9. the compound film electrode of a kind of direct borohydride fuel cell according to claim 1 is characterized in that dielectric film (3) is anion-exchange membrane or cation-exchange membrane.
10. the compound film electrode of a kind of direct borohydride fuel cell according to claim 9 is characterized in that anion-exchange membrane is an ammonium type organic polymer amberplex, and cation-exchange membrane is a proton exchange membrane.
CN200810137556A 2008-11-18 2008-11-18 Composite membrane electrode of direct borohydride fuel cell Expired - Fee Related CN100593877C (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
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CN102437348A (en) * 2011-12-08 2012-05-02 西安交通大学 Non-noble metal-catalyzed polymer fibrous membrane hydroborate fuel cell
CN103518286A (en) * 2011-05-10 2014-01-15 本田技研工业株式会社 Oxygen cell
CN105655601A (en) * 2016-03-28 2016-06-08 北方民族大学 Preparation method and application of anode catalyst of direct borohydride fuel cell
CN106972184A (en) * 2017-04-10 2017-07-21 浙江大学 It is a kind of to reduce the in-situ treatment method that amberplex permeates to sodium borohydride fuel
CN109309236A (en) * 2018-10-26 2019-02-05 北方民族大学 For the anode catalysis material of direct borohydride fuel cell, anode material and preparation method thereof and fuel cell
CN114830388A (en) * 2019-12-31 2022-07-29 可隆工业株式会社 Membrane-electrode assembly capable of improving reverse voltage durability of fuel cell, method of manufacturing the same, and fuel cell including the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103518286A (en) * 2011-05-10 2014-01-15 本田技研工业株式会社 Oxygen cell
US8940447B2 (en) 2011-05-10 2015-01-27 Honda Motor Co., Ltd. Oxygen cell
CN102437348A (en) * 2011-12-08 2012-05-02 西安交通大学 Non-noble metal-catalyzed polymer fibrous membrane hydroborate fuel cell
CN102437348B (en) * 2011-12-08 2013-11-06 西安交通大学 Non-noble metal-catalyzed polymer fibrous membrane hydroborate fuel cell
CN105655601A (en) * 2016-03-28 2016-06-08 北方民族大学 Preparation method and application of anode catalyst of direct borohydride fuel cell
CN106972184A (en) * 2017-04-10 2017-07-21 浙江大学 It is a kind of to reduce the in-situ treatment method that amberplex permeates to sodium borohydride fuel
CN106972184B (en) * 2017-04-10 2019-08-16 浙江大学 A kind of in-situ treatment method for reducing amberplex and sodium borohydride fuel being permeated
CN109309236A (en) * 2018-10-26 2019-02-05 北方民族大学 For the anode catalysis material of direct borohydride fuel cell, anode material and preparation method thereof and fuel cell
CN114830388A (en) * 2019-12-31 2022-07-29 可隆工业株式会社 Membrane-electrode assembly capable of improving reverse voltage durability of fuel cell, method of manufacturing the same, and fuel cell including the same

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