Properties of Pyrolyzed Carbon-Supported Cobalt-Polypyrrole as Electrocatalyst toward Oxygen Reduction Reaction in Alkaline Media
Properties of Pyrolyzed Carbon-Supported Cobalt-Polypyrrole as Electrocatalyst toward Oxygen Reduction Reaction in Alkaline Media
复制标题
DOI：
10.1149/2.0081504jes
复制
发表时间：
2015
影响因子：
3.9
通讯作者：
Lin Li;Xianxia Yuan;Zhong Ma;Zifeng Ma
中科院分区：
文献类型：
--
作者：
Lin Li;Xianxia Yuan;Zhong Ma;Zifeng Ma
以不同的钴前驱体为原料，在不同的温度下制备了一系列热解碳载钴聚吡咯（Co-PPy-TsOH/C）催化剂。采用循环伏安法（CV）和旋转圆盘电极（RDE）电化学技术，比较研究了这些催化剂在碱性介质中的氧化还原性能。采用X射线衍射（XRD）、透射电子显微镜（TEM）和X射线光电子能谱（XPS）等物理化学表征手段对产物进行了表征。结果表明，钴前驱体和热解温度对Co-PPy-TsOH/C催化剂的ORR性能有重要影响，乙酸钴和800 ℃分别是最佳的前驱体和热解温度。© 2015电化学学会。[DOI：10.1149/2.0081504jes]版权所有。
A series of pyrolyzed carbon-supported cobalt-polypyrrole, Co-PPy-TsOH/C, were prepared with various cobalt precursors and at diverse temperatures as electrocatalysts toward oxygen reduction reaction (ORR). The ORR performance of these catalysts in alkaline media was comparatively investigated using electrochemical techniques of cyclic voltammogram (CV) and rotating disk electrode (RDE). Physiochemical characterizations of X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) were employed to understand the results. It is found that the cobalt precursor as well as pyrolysis temperature plays essential role on the ORR performance of the Co-PPy-TsOH/C catalysts, cobalt acetate and 800◦C are the optimal metal precursor and pyrolysis temperature, respectively. © 2015 The Electrochemical Society. [DOI: 10.1149/2.0081504jes] All rights reserved.