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Low-temperature solid oxide fuel cell based on cerium oxide/ferroferric oxide composite material

A technology of ferroferric oxide and solid oxide, which is applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of not using fuel cells, short circuits, etc., to reduce electrode polarization loss, enhance transmission capacity, and output power increased effect

Active Publication Date: 2019-05-28
NANJING XIAOZHUANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Doping semiconductors in ionic conductors is easily reminiscent of the occurrence of short circuits. Because of this, materials with semiconductor properties have not been used in fuel cells so far.

Method used

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  • Low-temperature solid oxide fuel cell based on cerium oxide/ferroferric oxide composite material
  • Low-temperature solid oxide fuel cell based on cerium oxide/ferroferric oxide composite material
  • Low-temperature solid oxide fuel cell based on cerium oxide/ferroferric oxide composite material

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Embodiment Construction

[0026] The present invention can be better understood from the following examples. However, those skilled in the art can easily understand that the content described in the embodiments is only for illustrating the present invention, and should not and will not limit the present invention described in the claims.

[0027] Such as figure 1 As shown, the nickel foam coated with NCAL on the surface constitutes a symmetrical electrode, the fuel cell cathode and anode of the present invention all adopt the nickel foam coated with NCAL on the surface, and the core electrolyte layer is CeO 2 / Fe 3 o 4 Composite material, so the structure of the fuel cell is: nickel foam / / NCAL / / CeO2 / Fe 3 o 4 / / NCAL / / nickel foam; among them, NCAL is purchased nickel-cobalt-aluminum-lithium-Ni 0.8 co 0.15 Al 0.05 LiO 2-δ Material, CeO 2 / Fe 3 o 4 It is a composite material prepared by wet synthesis for the present invention; foamed nickel is a commercially purchased foamed nickel material.

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Abstract

The invention discloses a low-temperature solid oxide fuel cell based on a cerium oxide / ferroferric oxide composite material. A cathode and an anode of the fuel cell are foamed nickel with NCAL coatedon the surfaces, and an electrolyte layer of the fuel cell is a CeO2 / Fe3O4 composite material. The structure of the fuel cell is foamed nickel / / NCAL / CeO2 / Fe3O4 / NCAL / foamed nickel. According to the low-temperature solid oxide fuel cell, the CeO2 / Fe3O4 nano composite material is adopted as the electrolyte layer of the low-temperature solid oxide fuel cell, so that the electrode polarization loss inthe electrochemical reaction process of the fuel cell is greatly reduced; the electrolyte material has high oxygen ion conductivity in a low-temperature section, so that the solid oxide fuel cell adopting the electrolyte material can efficiently and stably operate for a long time in the low-temperature section (300-600 DEG C).

Description

technical field [0001] The invention relates to a low-temperature solid oxide fuel cell based on cerium oxide / ferric oxide composite material, which belongs to the technical field of new energy. Background technique [0002] Solid oxide fuel cells can efficiently convert chemical energy in fuel (such as hydrogen, methane, etc.) into electrical energy. The conversion efficiency is not limited by the Carnot cycle, and its efficiency is much higher than that of thermal power generating units. Fuel cells can be divided into proton exchange membrane fuel cells, solid oxide fuel cells, alkaline fuel cells, molten carbonate fuel cells, and phosphate fuel cells according to their electrolyte classification. Among them, solid oxide fuel does not require noble metal catalysts, materials The advantages of wide selection range and high conversion efficiency have attracted widespread attention. However, the current solid oxide fuel cells mainly use yttria-stabilized zirconia (YSZ) as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1016
CPCY02E60/50
Inventor 陆玉正颜森林
Owner NANJING XIAOZHUANG UNIV
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