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  • Tuning the electronic structure of PtRu bimetallic nanoparticles for promoting the hydrogen oxidation reaction in alkaline media

    Author(s)
    Long, Chang
    Wang, Kun
    Shi, Yanan
    Yang, Zhongjie
    Zhang, Xiaofei
    Zhang, Yin
    Han, Jianyu
    Bao, Yini
    Chang, Lin
    Liu, Shaoqin
    Tang, Zhiyong
    Griffith University Author(s)
    Tang, Zhiyong
    Year published
    2019
    Metadata
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    Abstract
    Optimization of the hydrogen binding energy by controlling the surface electronic structure of electrocatalysts is of great significance in the hydrogen oxidation reaction (HOR) in alkaline electrolytes. Herein, we demonstrated that the surface electronic structure of PtRu bimetallic nanoparticles could be finely tuned through the alloying degree; this led to enhanced HOR performance in an alkaline solution. The optimized Pt0.65Ru0.35 with high alloying degree exhibited the exchange current density of 4.16 A m−2, which was about 1.5 and 2.2 times those of Pt0.74Ru0.26 with a low alloying degree (2.75 A m−2) and Pt/C (1.89 A ...
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    Optimization of the hydrogen binding energy by controlling the surface electronic structure of electrocatalysts is of great significance in the hydrogen oxidation reaction (HOR) in alkaline electrolytes. Herein, we demonstrated that the surface electronic structure of PtRu bimetallic nanoparticles could be finely tuned through the alloying degree; this led to enhanced HOR performance in an alkaline solution. The optimized Pt0.65Ru0.35 with high alloying degree exhibited the exchange current density of 4.16 A m−2, which was about 1.5 and 2.2 times those of Pt0.74Ru0.26 with a low alloying degree (2.75 A m−2) and Pt/C (1.89 A m−2), respectively.
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    Journal Title
    Inorganic Chemistry Frontiers
    Volume
    6
    Issue
    10
    DOI
    https://doi.org/10.1039/c9qi00942f
    Subject
    Inorganic chemistry
    Science & Technology
    Physical Sciences
    Chemistry, Inorganic & Nuclear
    Chemistry
    RUTHENIUM SURFACE-AREAS
    Publication URI
    http://hdl.handle.net/10072/394627
    Collection
    • Journal articles

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