Compositional dependence of structures and hydrogen evolution reaction activity of platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles

Yuto Maruta; Kohei Kusada; Dongshuang Wu; Tomokazu Yamamoto; Takaaki Toriyama; Syo Matsumura; Okkyun Seo; Satoshi Yasuno; Shogo Kawaguchi; Osami Sakata; Yoshiki Kubota; Hiroshi Kitagawa

doi:10.1039/d2cc01866g

Compositional dependence of structures and hydrogen evolution reaction activity of platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles

Chem Commun (Camb). 2022 May 30;58(44):6421-6424. doi: 10.1039/d2cc01866g.

Authors

Yuto Maruta¹, Kohei Kusada^{1

2

3}, Dongshuang Wu¹, Tomokazu Yamamoto⁴, Takaaki Toriyama⁴, Syo Matsumura^{4

5}, Okkyun Seo⁶, Satoshi Yasuno⁶, Shogo Kawaguchi⁶, Osami Sakata⁶, Yoshiki Kubota⁷, Hiroshi Kitagawa¹

Affiliations

¹ Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan. kusada@kuchem.kyoto-u.ac.jp.
² The HAKUBI Centre for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
³ JST-PRESTO, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan.
⁴ The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
⁵ Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
⁶ Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
⁷ Department of Physics, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan.

PMID: 35546308
DOI: 10.1039/d2cc01866g

Abstract

Platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles were synthesised with compositions slightly away from equimolar, and their crystal and electronic structures were investigated. Their lattice constant changed linearly with composition, while the d-band centre changed nonlinearly. Their catalytic activities for the hydrogen evolution reaction were not correlated with their d-band centre.