Effects of reduction temperature and pH value of polyol process on reduced graphene oxide supported Pt electrocatalysts for oxygen reduction reaction

Chang Chen Chou, Cheng Hong Liu, Bing Hung Chen

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

Effects of the reduction temperature and the pH value of Pt precursor solutions of the polyol reduction process on the resulted Pt electrocatalysts supported on the reduced graphene oxide (Pt/r-GO) nanosheets for the ORR (oxygen reduction reaction) are investigated. The Pt/r-GO catalyst possesses Pt nanoparticles having an average size from 2 to 4nm and a Pt loading from 13 to 20wt%. The electrochemical performance of the Pt/r-GO catalysts is examined with the glassy carbon RDE (rotating disk electrode) technique in the O2-saturated HClO4 (0.5M) solution. The Pt/r-GO catalysts have less ORR limiting currents near 3.5mAcm-2, but, in general, the more positive onset potentials than the commercial Pt/carbon black catalysts. The number of electron transfer in ORR over the Pt/r-GO catalysts is 3.85 in average, close to that of a 4-electron transfer process.

原文English
頁(從 - 到)231-238
頁數8
期刊Energy
70
DOIs
出版狀態Published - 2014 六月 1

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造
  • 污染
  • 機械工業
  • 工業與製造工程
  • 電氣與電子工程

指紋

深入研究「Effects of reduction temperature and pH value of polyol process on reduced graphene oxide supported Pt electrocatalysts for oxygen reduction reaction」主題。共同形成了獨特的指紋。

引用此