Sulfonation of graphene nanosheet-supported platinum via a simple thermal-treatment toward its oxygen reduction activity in acid medium

被引：23

作者：

Hung, Tai-Feng ^{[1
]}

Wang, Bei ^{[2
]}

Tsai, Chi-Wen ^{[1
]}

Tu, Meng-Hsiu ^{[1
]}

Wang, Guo-Xiu ^{[2
]}

Liu, Ru-Shi ^{[1
]}

Tsai, Din Ping ^{[3
]}

Lo, Man-Yin ^{[4
]}

Shy, Der-Shiuh ^{[5
]}

Xing, Xue-Kun ^{[5
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Univ Technol Sydney, Sch Chem & Forens Sci, Sydney, NSW 2007, Australia

[3] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

[4] Ind Technol Res Inst, Mat & Chem Res Labs, Hsinchu 300, Taiwan

[5] SYNergy ScienTech Corp, Hsinchu 300, Taiwan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 19期

关键词：

Sulfonation; Graphene; Platinum catalyst; In situ chemical reaction; Thermal treatment; Oxygen reduction reaction; MEMBRANE FUEL-CELL; POLYMER ELECTROLYTE; CARBON SUPPORT; GRAPHITE OXIDE; PT/C CATALYSTS; NANOPARTICLES; PERFORMANCE; SHEETS; NANOPLATELETS; STORAGE;

D O I：

10.1016/j.ijhydene.2012.07.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：14205 / 14210

页数：6

共 30 条

[1] Graphene supported electrocatalysts for methanol oxidation [J].