Two-dimensional gold nanostructures with high activity for selective oxidation of carbon–hydrogen bonds

Liang Wang, Yihan Zhu, Jian-Qiang Wang, Fudong Liu, Jianfeng Huang, Xiangju Meng, Jean-Marie Basset, Yu Han () and Feng-Shou Xiao ()
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Liang Wang: Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University
Yihan Zhu: Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology
Jian-Qiang Wang: Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences
Fudong Liu: Research Center for Eco-Enviromental Sciences, Chinese Academy of Sciences
Jianfeng Huang: Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology
Xiangju Meng: Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University
Jean-Marie Basset: KAUST Catalysis Center, King Abdullah University of Science and Technology
Yu Han: Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology
Feng-Shou Xiao: Key Lab of Applied Chemistry of Zhejiang Province, Zhejiang University

Nature Communications, 2015, vol. 6, issue 1, 1-8

Abstract: Abstract Efficient synthesis of stable two-dimensional (2D) noble metal catalysts is a challenging topic. Here we report the facile synthesis of 2D gold nanosheets via a wet chemistry method, by using layered double hydroxide as the template. Detailed characterization with electron microscopy and X-ray photoelectron spectroscopy demonstrates that the nanosheets are negatively charged and [001] oriented with thicknesses varying from single to a few atomic layers. X-ray absorption spectroscopy reveals unusually low gold–gold coordination numbers. These gold nanosheets exhibit high catalytic activity and stability in the solvent-free selective oxidation of carbon–hydrogen bonds with molecular oxygen.

Date: 2015
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DOI: 10.1038/ncomms7957

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