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Solid oxide fuel cell catalyst

A solid oxide and fuel cell technology, applied in fuel cells, battery electrodes, circuits, etc., can solve problems such as low degradation rate and battery performance degradation

Pending Publication Date: 2020-04-21
FOSHAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Reducing the nickel content in the anode can lead to a lower degradation rate during redox cycling, but at the same time the battery performance is also significantly reduced

Method used

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Embodiment approach B12

[0149] In the embodiments of B1-B24 of the present invention, the cathode is lanthanum strontium manganese oxide (such as B5, B6, etc.), lanthanum strontium cobalt iron oxide (such as B1, B2, etc.), barium strontium manganese oxide (such as B1, B2, etc.) One of cobalt iron oxides (B12, etc.). The general formula of lanthanum strontium manganese oxide is La 1-m Sr m MnO 3-δ , where 01- m Sr m MnO 3-δ , 01-a Sr a co 1-b Fe b o 3-δ , where 01-a Sr a co 1-b Fe b o 3-δ Among them, a=0.1-0.9, b=0.3-1.0 or a=0.2-0.8, b=0.2-1.0). Further, in embodiment B1 of the present invention, La 1-a Sr a co 1-b Fe b o 3-δ Among them, a=0.4, b=0.8. The composition formula of barium strontium cobalt iron oxide is Ba 1-a Sr a co 1-b Fe b o 3-δ , where 01-a Sr a co 1-b Fe b o 3-δ Among them, a=0.4, b=0.8.

[0150] The configuration is "Ni-yttria stabilized zirconia (YSZ) as the anode; YSZ / samarium doped ceria (SDC) as the electrolyte; La 0.6 Sr 0.4 co 0.2 Fe 0.8 o 3-...

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Abstract

The invention relates to a solid oxide fuel cell catalyst, in particular to a metal-ceramic type Ni < 1-x > Mo < x > / Ce < 1-y > Ca < y > O < 2-delta > SOFC anode catalyst taking nickel and molybdenumas metal components and taking high-performance nano Ce < 1-y > Ca < y > O < 2-delta > as a carrier. The catalyst has an excellent catalytic effect on complex hydrocarbon fuels (such as gaseous alkanes including methane, methanol, ethanol, propane and the like and liquid alkanes including gasoline and the like). The hydrocarbons can be efficiently catalyzed and converted into fuel gas rich in H2 and CO, H2 and CO reaction gas is provided for electrochemical reaction of the SOFC anode, the electrochemical reaction rate of the anode is increased, and the electrochemical performance of the SOFC monocell is improved.

Description

technical field [0001] The invention relates to the technical field of solid oxide fuel cells, in particular to a solid oxide fuel cell catalyst and a preparation method thereof, an anode of a solid oxide fuel cell containing the catalyst, and a solid oxide fuel cell containing the catalyst. Background technique [0002] Solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) is a new type of energy conversion device. It can convert the chemical energy in the fuel into electrical energy through an electrochemical pathway, and has the advantages of high energy conversion efficiency, safety and environmental friendliness. SOFC uses functional ceramic oxides as battery components, and its working temperature is 500-800°C, which belongs to medium and high temperature fuel cells. In this working temperature range, SOFC can not only use conventional hydrogen fuel to generate electricity, but also cheap and easily available hydrocarbons (such as natural gas, city gas, gasoline) can al...

Claims

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Application Information

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IPC IPC(8): H01M4/90
CPCH01M4/9066H01M4/9075H01M2008/1293Y02E60/50
Inventor 赵凯陈旻陈东初徐庆程刚
Owner FOSHAN UNIVERSITY
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