磷氮双掺过渡金属碳基催化剂制备及其电化学氧还原的应用研究

Preparation of Phosphorous and Nitrogen Dual-doped TransitionMetal Carbon-based Catalyst and Its Applicationin Electrochemical Oxygen Reduction

利用盐模板法合成了系列三维多孔的磷氮双掺杂过渡金属碳基催化剂,并对催化剂进行了电化学表征。对掺入过渡金属Fe、Co、Ni和Mn的一系列催化剂进行了电化学分析。实验结果表明,在碱性电解质中,掺Co的催化剂具有较优氧还原性能,起峰电势为860 mV,半波电势为800 mV,可媲美商用的Pt/C催化剂。该制备催化剂的方法具有过程简单、原料廉价易得、环境污染少的优点。

A series of three-dimensional porous carbon-based transition metal catalysts with phosphorus and nitrogen dual-doped was prepared with salt template method and their electrochemical property was characterized in the paper.The electrochemical analysis of the catalysts doped with transition metal Fe,Co,Ni,Mn showed that the catalyst doped with Co performed effective oxygen reduction in alkaline electrolyte,and its onset potential and half-wave potential was 860 mV and 800 mV respectively,which almost reached the performance of the commercial Pt/C catalyst.Especially,the catalyst was easy to prepared,cheap in raw materials and less pollution for the environment.