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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/37226

Title: Pd nanocrystals with continuously tunable high-index facets as a model nanocatalyst
Authors: Yu, Neng-Fe
Tian, Na
Zhou, Zhi-You
Sheng, Tian
Lin, Wen-Feng
Ye, Jin-Yu
Liu, Shuo
Ma, Hai-Bin
Sun, Shi-Gang
Keywords: Electrocatalysis
Electrooxidation
High-index facets
Model catalysts
Single crystalline planes
Structure−reactivity relationship
Issue Date: 2019
Publisher: © American Chemical Society
Citation: YU, N-F. ... et al, 2019. Pd nanocrystals with continuously tunable high-index facets as a model nanocatalyst. ACS Catalysis, 9, pp.3144–3152.
Abstract: Knowledge of the structure–reactivity relationship of catalysts is usually gained through using well-defined bulk single-crystal planes as model catalysts. However, there exists a huge gap between bulk single-crystal planes and practical nanocatalysts in terms of size, structural complexity, and local environment. Herein, we efficiently bridged this gap by developing a model nanocatalyst based on nanocrystals with continuously tunable surface structures. Pd nanocrystals with finely tunable facets, ranging from a flat {100} low-index facet to a series of {hk0} high-index facets, were prepared by an electrochemical square-wave potential method. The validity of the Pd model nanocatalyst has been demonstrated by structure–reactivity studies of electrocatalytic oxidation of small organic molecules. We further observed that Pd nanocrystals exhibited catalytic performance considerably different from bulk Pd single-crystal planes with the same Miller indices. Such differences were attributed to special catalytic functions conferred by nanocrystal edges. This study paves a promising route for investigating catalytic reactions effectively at the atomic level and nanoscales.
Description: This paper is closed access until 26 February 2020.
Sponsor: This work was supported by grants from National Key Research and Development Program of China (2017YFA0206500), Natural Science Foundation of China (21573181, 21603103, 91645121, and 21621091), the UK EPSRC (EP/I013229/1) and Natural Science Foundation Committee of Jiangsu Province (BK20171462).
Version: Accepted for publication
DOI: 10.1021/acscatal.8b04741
URI: https://dspace.lboro.ac.uk/2134/37226
Publisher Link: https://doi.org/10.1021/acscatal.8b04741
ISSN: 2155-5435
Appears in Collections:Closed Access (Chemical Engineering)

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