Title of article :
Sulfonation of graphene nanosheet-supported platinum via a simple thermal-treatment toward its oxygen reduction activity in acid medium
Author/Authors :
Hung، نويسنده , , Tai-Feng and Wang، نويسنده , , Bei and Tsai، نويسنده , , Chi-Wen and Tu، نويسنده , , Meng-Hsiu and Wang، نويسنده , , Guoxiu and Liu، نويسنده , , Ru-Shi and Tsai، نويسنده , , Din Ping and Lo، نويسنده , , Man-Yin and Shy، نويسنده , , Der-Shiuh and Xing، نويسنده , , Xue-Kun، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Abstract :
The sulfonated graphene nanosheet-supported platinum (s-Pt/GNS) catalyst synthesized via a simple thermal-treatment in the presence of concentrated sulfuric acid was reported in this study. Influence of sulfonation on its structural, surface, morphological and catalytic characteristics of as-prepared s-Pt/GNS was explored using X-ray diffractometer, Raman spectrometry, zeta potential analyzer, scanning and transmission electron microscopes, and cyclic voltammetry. For the oxygen reduction reaction, the current density generated from the s-Pt/GNS at 0.6 V was approximately 32.5 A g−1 Pt, which was about 193% higher than that of original Pt/GNS.
Keywords :
graphene , Platinum catalyst , thermal treatment , Oxygen reduction reaction , Sulfonation , In situ chemical reaction
Journal title :
International Journal of Hydrogen Energy
Journal title :
International Journal of Hydrogen Energy
