Transition metal/nitrogen-doped porous carbon nanosphere electrocatalyst and preparation method thereof
A nitrogen-doped porous carbon and transition metal technology, which can be used in fuel cell type half cells and primary cell type half cells, circuits, electrical components, etc. The nitrogen process is complex and other problems, to achieve the effect of improving catalytic activity, improving catalytic efficiency, and large specific surface area
Active Publication Date: 2020-03-24
SHENZHEN UNIV
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The invention discloses a transition metal/nitrogen-doped porous carbon nanosphere electrocatalyst and a preparation method thereof.The method comprises the steps that a precursor solution composed ofa template agent, a carbon source and a nitrogen source is placed in a reaction kettle, and nitrogen-doped carbon nanosphere powder is obtained under the heating condition; carrying out ultrasonic treatment on the nitrogen-doped carbon nanospheres and a transition metal salt solution and then carrying out vacuum drying to obtain transition metal/nitrogen-doped carbon nanosphere powder; and carbonizing the transition metal/nitrogen-doped carbon nanosphere powder in inert gas to obtain the transition metal/nitrogen-doped porous carbon nanosphere electrocatalyst. According to the preparation method disclosed by the invention, the content of the transition metal adsorbed by the nitrogen-doped carbon nanospheres can be adjusted by adjusting the content of the nitrogen source, so that the catalytic activity of the electrocatalyst is effectively improved. The template agent is decomposed at a high temperature, acid-base etching is not needed to remove the template, and the prepared electrocatalyst has a large specific surface area, is beneficial to adsorption and catalytic reaction, and greatly improves the catalytic efficiency.
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