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hao212: 金币+20, ★★★很有帮助, 是能提供 Web of Science链接？ 2017-02-14 11:55:06
lazy锦溪: LS-EPI+1 2017-02-14 14:16:12
Hollow hemisphere-shaped macroporous graphene/tungsten carbide/platinum nanocomposite as an efficient electrocatalyst for the oxygen reduction reaction

作者:Li, ZS (Li, Zesheng)[ 1 ] ; Liu, ZS (Liu, Zhisen)[ 1 ] ; Li, BL (Li, Bolin)[ 1 ] ; Liu, ZH (Liu, Zhenghui)[ 1 ] ; Li, DH (Li, Dehao)[ 1 ] ; Wang, HQ (Wang, Hongqiang)[ 2 ] ; Li, QY (Li, Qingyu)[ 2 ]

ELECTROCHIMICA ACTA

卷: 221

页: 31-40

DOI: 10.1016/j.electacta.2016.10.157

出版年: DEC 10 2016

查看期刊信息
摘要

Hollow hemisphere-shaped macroporous graphene/tungsten carbide/platinum (HMG/WC/Pt) nano composite has been synthesized as an efficient electrocatalyst for the oxygen reduction reaction (ORR). The HMG/WC/Pt sample has been systematically characterized by the X-ray diffraction (XRD), Scanning electron microscope (SEM) and Transmission electron microscopy (TEM). The analysis results indicate that the sample has an interesting three-dimensional hollow hemisphere-shaped macroporous architecture. The results also demonstrate the successful integration of WC and Pt nanoparticles on the HMG, in which the WC nanoparticles are in size of about 10 nm and the Pt nanoparticles are in size of about 3 nm. The as-prepared HMG/WC/Pt electrode displays excellent electrocatalytic performances for the ORR in 0.1 mol L-1 HCIO4 electrolyte. The mass activity (i(m) at 0.9 V) of HMG/WC/Pt is 206 mA mg(-1) Pt, which is about 85% higher than that of Pt/C (112 mAmg(-1)Pt). It also displayed a very high activity retention of 84.5% after 2000 cyclic voltammetry cycles for the HMG/WC/pt, while that of the Pt/C is only 70.5%. The HMG/WC/Pt nanocomposite would be a promising electrocatalytic material for the ORR in Fuel cell applications. (C) 2016 Elsevier Ltd. All rights reserved.
关键词

作者关键词:Macroporous graphene; Tungsten carbide; Platinum electrocatalyst; Oxygen reduction reaction

KeyWords Plus:ELECTROLYTE FUEL-CELL; TUNGSTEN CARBIDE; METHANOL OXIDATION; PLATINUM NANOPARTICLES; EVOLUTION REACTION; FACILE SYNTHESIS; CARBON NANOTUBE; DISK ELECTRODE; FREE CATALYSTS; GRAPHENE
作者信息

通讯作者地址: Li, ZS (通讯作者)
              Guangdong Univ Petrochem Technol, Coll Chem Engn, Dev Ctr Technol Petrochem Pollut Control & Cleane, Maoming 525000, Guangdong, Peoples R China.
通讯作者地址: Li, QY (通讯作者)
[显示增强组织信息的名称]         Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, Guangxi Key Lab Low Carbon Energy Mat, Guilin 541004, Peoples R China.

地址:
              [ 1 ] Guangdong Univ Petrochem Technol, Coll Chem Engn, Dev Ctr Technol Petrochem Pollut Control & Cleane, Maoming 525000, Guangdong, Peoples R China
[显示增强组织信息的名称]         [ 2 ] Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, Guangxi Key Lab Low Carbon Energy Mat, Guilin 541004, Peoples R China

电子邮件地址:lzs212@163.com; liqingyu62@126.com
基金资助致谢
基金资助机构        授权号
National Natural Science Foundation of China        
21443006
21606052
Provincial Natural Science Foundation of Guangdong        
2014A030310179
Young Creative Talents Project of Guangdong Province Education Department        
2014KQNCX200
Excellent Young Teacher Training Project of Guangdong Province Education Department        
YQ2015115
Science and Technology Planning Project of Guangdong Province        
2014A020216046
查看基金资助信息   
出版商

PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
类别 / 分类

研究方向:Electrochemistry

Web of Science 类别:Electrochemistry
文献信息

文献类型:Article

语种:English

入藏号: WOS:000390746600005

ISSN: 0013-4686

eISSN: 1873-3859
期刊信息

    Impact Factor (影响因子): Journal Citation Reports®

其他信息

IDS 号: EG0UB

Web of Science 核心合集中的 "引用的参考文献": 45

Web of Science 核心合集中的 "被引频次": 0
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