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

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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)
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2019
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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 m−2), respectively.

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Inorganic Chemistry Frontiers

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6

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10

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Inorganic chemistry

Science & Technology

Physical Sciences

Chemistry, Inorganic & Nuclear

Chemistry

RUTHENIUM SURFACE-AREAS

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Long, C; Wang, K; Shi, Y; Yang, Z; Zhang, X; Zhang, Y; Han, J; Bao, Y; Chang, L; Liu, S; Tang, Z, Tuning the electronic structure of PtRu bimetallic nanoparticles for promoting the hydrogen oxidation reaction in alkaline media, Inorganic Chemistry Frontiers, 2019, 6 (10), pp. 2900-2905

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