Preparation method of nitrogen-doped porous carbon microsphere coated Ni/Co alloy

Abstract

The invention relates to a preparation method of a nitrogen-doped porous carbon microsphere coated Ni / Co alloy, which comprises the following steps: adding pectin, melamine, cobalt nitrate and nickel nitrate into deionized water, and carrying out hydrothermal reaction to obtain an intermediate product; and carbonizing the intermediate product in a nitrogen atmosphere to obtain the nitrogen-doped porous carbon microsphere coated Ni / Co alloy. The nitrogen-doped porous carbon microsphere coated Ni / Co alloy is prepared through a simple hydrothermal method. The preparation method has the advantages of few reaction steps, low consumption of chemical reagents, simplicity in operation, short reaction period, wide sources of raw materials, simplicity, easiness in obtaining, energy conservation, environment friendliness and cost saving.

Description

technical field [0001] The invention relates to a preparation method of Ni / Co alloy coated with nitrogen-doped porous carbon microspheres, and belongs to the field of alloys. Background technique [0002] In terms of green energy, the research of catalytic chemistry provides various catalytic reaction paths for the efficient conversion and utilization of hydrogen energy, and provides an effective technical route for the chemical storage and release of hydrogen energy and the conversion and utilization of biomass raw materials. Porous carbon materials have been widely used in catalyst carriers, electrocatalysis, supercapacitors and other fields due to their high electrical conductivity, acid and alkali resistance, large specific surface area, and tunable pore structure. However, a single carbon material renders electrochemically inert and poor catalytic activity. Heteroatom-doped carbon materials can improve the activity of carbon materials, mainly because the introduction o...

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Problems solved by technology

However, most nitrogen-doped catalysts cannot compete with Pt-based catalysts due to the limited specific surface area, which results in fewer exposed active sites.

To date, the most efficient commercially available oxygen reduction catalysts are platinum-noble metal-based catalysis, however, the scarcity and high cost of platinum-based noble metals have seriously hindered the large-scale use of noble metal catalysts.

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