Halide and NH3 Assisted Synthesis of Pt Nanodendrites with High Activity for Oxygen Reduction Reaction
作者单位：College of Chemistry Chemical Engineering and Materials Science of Soochow University State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences
会议名称：《2015年第十四届全国应用化学年会》
会议日期：2015年
学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
关 键 词：Pt nanodendrites shape control electrocatalysis ORR
摘 要：Platinum nanodendritic crystals have highly activity towards electrocatalysis due to their numbers of edges and corner atoms. In the article, we report a facile synthesis of several Pt nanodendrites by adding different halides under NH gas. We investigate the possible roles of halides in the synthesis and also NH, as far as we known, is firstly reported to assist the formation of platinum anisotropic nanostructures. By proposing the completing mechanism of NH with OAm, we believe that NH gas is crucial to the formation of dendritic morphology. The as-synthesized nanomaterials show superior catalytic activity for oxygen reduction reaction compared with commercial Pt/C catalyst and other Pt-based materials reported previously.