TY - JOUR AB - 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. © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. AU - Hung, TF AU - Wang, B AU - Tsai, CW AU - Tu, MH AU - Wang, GX AU - Liu, RS AU - Tsai, DP AU - Lo, MY AU - Shy, DS AU - Xing, XK DA - 2012/10/01 DO - 10.1016/j.ijhydene.2012.07.027 EP - 14210 JO - International Journal of Hydrogen Energy PY - 2012/10/01 SP - 14205 TI - Sulfonation of graphene nanosheet-supported platinum via a simple thermal-treatment toward its oxygen reduction activity in acid medium VL - 37 Y1 - 2012/10/01 Y2 - 2024/03/28 ER -