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†

Yuto Maruta,^a Kohei Kusada,

*^abc Dongshuang Wu,

^a Tomokazu Yamamoto,^d Takaaki Toriyama,^d Syo Matsumura,^de Okkyun Seo,^f Satoshi Yasuno,

^f Shogo Kawaguchi,^f Osami Sakata,

^f Yoshiki Kubota^g and Hiroshi Kitagawa

*^a

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* Corresponding authors

^a Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Kyoto 606-8502, Sakyo-ku, Japan
E-mail: kusada@kuchem.kyoto-u.ac.jp, kitagawa@kuchem.kyoto-u.ac.jp

^b The HAKUBI Centre for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Kyoto 606-8502, Sakyo-ku, Japan

^c JST-PRESTO, Honcho 4-1-8, Saitama, Kawaguchi, Japan

^d The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Fukuoka 819-0395, Nishi-ku, Japan

^e Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Fukuoka 819-0395, Nishi-ku, Japan

^f Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5198, Sayo-gun, Japan

^g Department of Physics, Graduate School of Science, Osaka Metropolitan University, Osaka 599-8531, Sakai, Japan

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.

Chemical Communications

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

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

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