Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

doi:10.1088/1674-1056/24/11/118104

中国物理B ›› 2015, Vol. 24 ›› Issue (11): 118104-118104.doi: 10.1088/1674-1056/24/11/118104

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

杨苏东, 陈琳

Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China

收稿日期:2015-05-15 修回日期:2015-06-16 出版日期:2015-11-05 发布日期:2015-11-05
通讯作者: Yang Su-Dong E-mail:yangsd@ms.xjb.ac.cn

Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

Yang Su-Dong (杨苏东), Chen Lin (陈琳)

Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China

Received:2015-05-15 Revised:2015-06-16 Online:2015-11-05 Published:2015-11-05
Contact: Yang Su-Dong E-mail:yangsd@ms.xjb.ac.cn

摘要/Abstract

摘要： We report a solvothermal method preparation of dendritic Pd nanoparticles (DPNs) and spherical Pd nanoparticles (SPNs) supported on reduced graphene oxide (RGO). Drastically different morphologies of Pd NPs with nanodendritic structures or spherical structures were observed on graphene by controlling the reduction degree of graphene oxide (GO) under mild conditions. In addition to being a commonplace substrate, GO plays a more important role that relies on its surface groups, which serves as a shape-directing agent to direct the dendritic growth. As a result, the obtained DPNs/RGO catalyst exhibits a significantly enhanced electro-catalytic behavior for the oxidation of formic acid compared to the SPNs/RGO catalyst.

关键词: graphene nanosheet, Pd nanostructure, nanodendrite, electrocatalyst

Abstract: We report a solvothermal method preparation of dendritic Pd nanoparticles (DPNs) and spherical Pd nanoparticles (SPNs) supported on reduced graphene oxide (RGO). Drastically different morphologies of Pd NPs with nanodendritic structures or spherical structures were observed on graphene by controlling the reduction degree of graphene oxide (GO) under mild conditions. In addition to being a commonplace substrate, GO plays a more important role that relies on its surface groups, which serves as a shape-directing agent to direct the dendritic growth. As a result, the obtained DPNs/RGO catalyst exhibits a significantly enhanced electro-catalytic behavior for the oxidation of formic acid compared to the SPNs/RGO catalyst.

Key words: graphene nanosheet, Pd nanostructure, nanodendrite, electrocatalyst

中图分类号: (Nanopowders)

81.07.Wx

82.47.Gh (Proton exchange membrane (PEM) fuel cells) 81.05.ue (Graphene) 81.16.Be (Chemical synthesis methods)

杨苏东, 陈琳. Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation[J]. 中国物理B, 2015, 24(11): 118104-118104.

Yang Su-Dong (杨苏东), Chen Lin (陈琳). Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation[J]. Chin. Phys. B, 2015, 24(11): 118104-118104.

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Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

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