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Delafossite oxide, low-temperature fuel cell material and preparation method

A fuel cell and oxide technology, applied in fuel cells, chemical instruments and methods, fuel cell components, etc., can solve the problem of not seeing single-component fuel cells, achieve broad development space and degrees of freedom, reduce manufacturing cost, effect of avoiding matching problems

Pending Publication Date: 2017-09-26
NANJING YUNNA NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been no relevant reports on the use of it to realize single-component fuel cells

Method used

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  • Delafossite oxide, low-temperature fuel cell material and preparation method
  • Delafossite oxide, low-temperature fuel cell material and preparation method
  • Delafossite oxide, low-temperature fuel cell material and preparation method

Examples

Experimental program
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Effect test

Embodiment 3

[0034] Example 3 Mix the oxides of Cu, Cr and Mg according to the molar ratio of Cu: Cr: Mg=1:0.97:0.03, and grind them evenly, and then grind them at 800-1300 o C calcined for 5-20 hours to obtain Cuacr 0.97 Mg 0.03 o 2 copper oxide.

[0035] Example 4 Mix the oxides of Cu, Y and Ca according to the molar ratio of Cu:Y:Ca=1:0.96:0.04, grind them evenly, and then grind them at 800-1300 o C calcined for 5-20 hours to obtain CuY 0.96 Ca 0.04 o 2 copper oxide.

[0036] implement 5 Mix the oxides of Cu, La and Y according to the molar ratio of Cu:La:Y=1:0.9:0.1, grind them evenly, and then grind them at 800-1300 o C calcined for 5-20 hours to obtain CuLa 0.9 Y 0.1 o 2 copper oxide.

[0037] implement 6Mix the oxides of Cu, Fe and Y according to the molar ratio of Cu:Fe:Y=1:0.9:0.1, grind them evenly, and then grind them at 800-1300 o C calcined for 5-20 hours to obtain CuLa 0.9 Y 0.1 o 2 copper oxide.

[0038] Further preparation of rare earth - Co...

Embodiment 8

[0040] Example 8 CuY 0.96 Ca 0.04 o 2 Mix with rare earth LCP-oxide in a weight ratio of 1-4, then add citric acid 1-4 times the weight of the two materials to make a slurry, and then mix it at 600-800 o C calcined for 1-6 hours. Prepared for use as a composite material.

Embodiment 9

[0041] Example 9 CuCr 0.97 Mg 0.03 o 2 Weigh and mix with rare earth LCP-oxide according to the weight ratio of 1-4, and grind evenly, then in 600-800 o C calcined for 1-6 hours.

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Abstract

The invention discloses delafossite oxide, a low-temperature fuel cell material and a preparation method. The delafossite oxide is CuM1-xAxO2, 0x0.3 or is compounded proportionally by one and more than one of the above materials, M is trivalent metal ion of B, Y, Cr, Al, Fe, La or In, and A is plus-divalent metal ion of Mg, Ca, Ni, Sr and Zn. A composite material of the delafossite oxide and rare earth oxide is used for the low-temperature oxide fuel cell for the first time. In a temperature interval from 300 DEG C to 600 DEG C, a cell successfully demonstrates and outputs current density of KmA and power density reaching more than 800mw (550C). A new path is provided for developing new-generation commercial efficient fuel cell products.

Description

technical field [0001] The invention relates to a delafossite-type oxide, a material used for a low-temperature fuel cell and a preparation method, specifically, a delafossite is used to make a novel fuel cell, which belongs to the technical field of new energy utilization. Background technique [0002] Recently, there has been a new type of electrolyte-free fuel cell, which uses semiconductor-ion composite materials, does not require electrolytes, and does not use the structure of anode, electrolyte, and cathode. Its simple structure and technology remove the limitations of the electrolyte and the operating temperature. requirements, showing huge business opportunities and prospects for the industrialization of fuel cells. The paper Advanced Functional Materials and Energy Environmental Science reports the success of conventional anodes in single components based on a homogeneous mixture of semiconductor and ion conductor materials. Electrolyte and cathode three-component ...

Claims

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Application Information

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IPC IPC(8): H01M8/00H01M8/02C01B13/00
CPCH01M8/00H01M8/02C01B13/00Y02E60/50
Inventor 宓丹朱斌陆玉正
Owner NANJING YUNNA NANO TECH
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