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Facile synthesis of silver nanoparticles supported on three dimensional graphene oxide/carbon black composite and its application for oxygen reduction reaction
Yuan, Lizhi1,2; Jiang, Luhua1; Liu, Jing1,2; Xia, Zhangxun1,2; Wang, Suli1; Sun, Gongquan1
关键词Silver Graphene Oxide Carbon Black Oxygen Reduction Reaction Electrocatalyst
刊名ELECTROCHIMICA ACTA
2014-07-20
DOI10.1016/j.electacta.2014.04.137
135页:168-174
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]METAL-FREE ELECTROCATALYSTS ; MEMBRANE FUEL-CELLS ; ALKALINE MEDIA ; AG NANOPARTICLES ; CATHODE ELECTROCATALYST ; POLYCRYSTALLINE SILVER ; CATALYTIC-ACTIVITY ; CARBON ; OXIDE ; PERFORMANCE
英文摘要A 3D graphene oxide/carbon sphere supported silver composite (Ag/GO/C) was synthesized using graphene oxide as the reducing agent. The reducing process of Ag+ was monitored by the ultra violet-visible (UV-vis) absorption spectrometer and the physical properties of the Ag/GO/C composite were characterized by Fourier transform infrared spectrometer (FTIR), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results demonstrated that the dispersive Ag nanoparticles are anchored uniformly on the surface of GO sheets with a mean size of about 6.9 nm. With introducing carbon black, the Ag nanoparticles aggregated slightly. Compared with its counterpart Ag/GO, the Ag/GO/C composite showed a significantly enhanced activity towards the oxygen reduction reaction in alkaline media. The enhancement can be ascribed to the 3D composite support, which not only improves the electrical conductivity, but also enforces the mass transport in the catalyst layer facilitating the reactants access to the active sites. Moreover, the Ag/GO/C composite exhibits good tolerance to alcohols, carbonates and tetramethylammonium hydroxide. This work is expected to open a new pathway to use GO as a reducing agent to synthesize electrocatalysts without surfactants. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000339692600023
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145601
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cell & Battery, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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Yuan, Lizhi,Jiang, Luhua,Liu, Jing,et al. Facile synthesis of silver nanoparticles supported on three dimensional graphene oxide/carbon black composite and its application for oxygen reduction reaction[J]. ELECTROCHIMICA ACTA,2014,135:168-174.
APA Yuan, Lizhi,Jiang, Luhua,Liu, Jing,Xia, Zhangxun,Wang, Suli,&Sun, Gongquan.(2014).Facile synthesis of silver nanoparticles supported on three dimensional graphene oxide/carbon black composite and its application for oxygen reduction reaction.ELECTROCHIMICA ACTA,135,168-174.
MLA Yuan, Lizhi,et al."Facile synthesis of silver nanoparticles supported on three dimensional graphene oxide/carbon black composite and its application for oxygen reduction reaction".ELECTROCHIMICA ACTA 135(2014):168-174.
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