The impact of Pt particle size distribution on the HER pathway and performance

Yintong Zhou; Dayu Xiang; Jiayao Mao; Wenping He; Hanling Tie; Rongsheng Chen; Jiaxing Wang; Feng Ma; Huimin Wang; Xiaohui Ren; Hongwei Ni

doi:10.1039/D5CC07303K

The impact of Pt particle size distribution on the HER pathway and performance

Yintong Zhou,

†^a Dayu Xiang,†^a Jiayao Mao,^a Wenping He,^b Hanling Tie,^a Rongsheng Chen,*^a Jiaxing Wang,

^a Feng Ma,

^a Huimin Wang,^b Xiaohui Ren

*^b and Hongwei Ni^b

Author affiliations

* Corresponding authors

^a Institute of Steel and Chemicals Co-Production, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
E-mail: chenrs@wust.edu.cn

^b Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education & Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking, School of Metallurgy and Energy, Wuhan University of Science and Technology, Wuhan, China
E-mail: xhren@wust.edu.cn

Abstract

Pt nanoparticles with controlled size distribution were prepared using porous polydopamine spheres. The optimized Pt/CS-200 exhibits an overpotential of 17 mV at 10 mA cm⁻², 200% higher mass activity than commercial Pt/C, and improved stability. The Tafel slope of 29.8 mV dec⁻¹ indicates a Volmer–Tafel pathway.

Chemical Communications

The impact of Pt particle size distribution on the HER pathway and performance

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The impact of Pt particle size distribution on the HER pathway and performance

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