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A comprehensive study of catalytic, morphological and electronic properties of ligand-protected gold nanoclusters using XPS, STM, XAFS, and TPD techniques

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Abstract

Ultra-small gold nanoclusters were synthesized via a ligand exchange method and deposited onto different TiO2 supports to study their properties. STM imaging revealed that the as-synthesized gold nanoclusters had 2-D morphology consisting of monolayers of gold atoms. Subsequent XPS, XAFS, and CO oxidation TPD results indicated that heat treatments of gold clusters at different temperatures significantly altered their electronic and catalytic properties due to ligand deprotection and cluster agglomeration.

Graphical abstract: A comprehensive study of catalytic, morphological and electronic properties of ligand-protected gold nanoclusters using XPS, STM, XAFS, and TPD techniques

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Publication details

The article was received on 17 Sep 2017, accepted on 08 Dec 2017 and first published on 08 Dec 2017


Article type: Paper
DOI: 10.1039/C7CP06376H
Citation: Phys. Chem. Chem. Phys., 2018, Advance Article
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    A comprehensive study of catalytic, morphological and electronic properties of ligand-protected gold nanoclusters using XPS, STM, XAFS, and TPD techniques

    Q. Wu, J. Cen, Y. Zhao, X. Tong, Y. Li, A. I. Frenkel, S. Zhao and A. Orlov, Phys. Chem. Chem. Phys., 2018, Advance Article , DOI: 10.1039/C7CP06376H

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