Non-noble metal catalyst for fuel cell and preparation method of non-noble metal catalyst

A fuel cell, non-precious metal technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as the gap between ORR activity and catalytic stability, difficult to control reaction conditions, and complicated preparation process steps for non-precious metal catalysts, achieving easy industrialization. The effect of production promotion, simple synthesis steps and strong controllability of reaction parameters

Pending Publication Date: 2022-04-12
先进能源产业研究院(广州)有限公司
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Problems solved by technology

[0004] The non-platinum catalysts currently used in fuel cells include carbon-based transition metal sulfides, carbides, nitrides, carbonitrides, oxides, and nitrogen oxides, etc., but their ORR activity and catalytic stability are still comparable to those of traditional Pt-based catalysts. there is a

Method used

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  • Non-noble metal catalyst for fuel cell and preparation method of non-noble metal catalyst
  • Non-noble metal catalyst for fuel cell and preparation method of non-noble metal catalyst

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[0021] Example 1

[0022] 5 mmol of cobalt chloride, 2.5 mmol cobaltocyanide and 3 g of oxide oxide dissolved in 5 ml deionized water, after standing at 50 ° C for 10 h, gave a black hydrogel; formulated 1 g / ml NABH 4 The solution was 100 ml, poured into the hydrogel and stirred at a constant temperature of 80 ° C for 6 h. Used as a fuel cell catalyst.

Example Embodiment

[0023] Example 2

[0024] 10 mmol of cobalt chloride, 5 mmol cobaltocyanide and 4 g of oxide in graphene were dissolved in 10 ml of deionized water, and after the oven at 50 ° C was allowed to obtain a black hydrogel; formulated 2 g / ml NABH 4 The solution was 100 mL, poured into the hydrogel and stirred at a constant temperature of 80 ° C for 10 h. Used as a fuel cell catalyst.

Example Embodiment

[0025] Example 3

[0026] 3 mmol of cobalt chloride, 1.5 mmol cobaltocyanide and 2 g of oxide oxide dissolved in 3 ml of deionized water, and gave a black hydrogel after 40 ° C for 12 h; formulated 1 g / ml of NABH 4 The solution was 80 ml of the hydrogel, and the hydrogel was poured and stirred at a constant temperature of 8 h h Hh after 8 h heterogeneity; the obtained greased graphene loaded tetrashydoxide nanocarbon is dispersed in ethanol and water to obtain an electrocatalyst dispersion. Used as a fuel cell catalyst.

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Abstract

The invention belongs to the technical field of fuel cells, and particularly relates to a non-noble metal catalyst for a fuel cell and a preparation method of the non-noble metal catalyst. The preparation method of the non-noble metal catalyst for the fuel cell comprises the following steps: (1) preparing hydrogel; and (2) preparing the graphene oxide loaded cobaltosic oxide nanosheet composite material. The preparation method is simple in synthesis step, the catalyst can be obtained only through one-step reduction, the controllability of reaction parameters is high, and industrial production and popularization are easy to achieve.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a non-noble metal catalyst for fuel cells and a preparation method thereof. Background technique [0002] At present, the vigorous promotion and use of hydrogen energy provides an excellent way to reduce environmental pollution and solve the energy crisis with broad prospects. The application technology of hydrogen energy is gradually developing and maturing, the industrial chain of hydrogen energy is improving day by day, and the development prospect of hydrogen energy is also attracting the attention of the whole world. Because the fuel cell does not need to go through the Carnot cycle, the energy loss is small, the energy utilization efficiency is high, and it has the advantages of environmental friendliness such as greenness and cleanliness, therefore, the fuel cell has become an ideal way to rationally utilize hydrogen energy. Hydrogen energy and fuel cells c...

Claims

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Application Information

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IPC IPC(8): H01M4/90B82Y30/00B82Y40/00
CPCY02E60/50
Inventor 陈忠伟马歌王新韦小玲
Owner 先进能源产业研究院(广州)有限公司
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