In situ observation of facet-dependent oxidation of graphene on platinum in an environmental TEM

Wentao Yuan; Ying Jiang; Yong Wang; Shyam Kattel; Zhengfei Zhang; Lien-Yang Chou; Chia-Kuang Tsung; Xiao Wei; Jixue Li; Xiaofeng Zhang; Guofeng Wang; Scott X. Mao; Ze Zhang

doi:10.1039/C4CC07838A

In situ observation of facet-dependent oxidation of graphene on platinum in an environmental TEM†

Wentao Yuan,‡^a Ying Jiang,‡^a Yong Wang,*^a Shyam Kattel,^b Zhengfei Zhang,^a Lien-Yang Chou,^c Chia-Kuang Tsung,^c Xiao Wei,^a Jixue Li,^a Xiaofeng Zhang,^d Guofeng Wang,*^b Scott X. Mao^ab and Ze Zhang^a

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^a Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
E-mail: yongwang@zju.edu.cn

^b Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15261, USA
E-mail: guw8@pitt.edu

^c Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA

^d Hitachi High Technologies America, Pleasanton, CA 94588, USA

Abstract

We performed a direct observation of a crystal facet-dependent oxidation of graphene layers on platinum nanocrystals at atomic resolution in an environmental transmission electron microscope. Combined with density functional theory calculations, our work provides a novel approach for the dynamical exploration of the facet-dependent reactions at the atomic level.

Chemical Communications

In situ observation of facet-dependent oxidation of graphene on platinum in an environmental TEM†

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In situ observation of facet-dependent oxidation of graphene on platinum in an environmental TEM

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