B2-structured indium–platinum group metal high-entropy intermetallic nanoparticles

Masashi Nakamura; Dongshuang Wu; Megumi Mukoyoshi; Kohei Kusada; Takaaki Toriyama; Tomokazu Yamamoto; Syo Matsumura; Yasukazu Murakami; Shogo Kawaguchi; Yoshiki Kubota; Hiroshi Kitagawa

doi:10.1039/D3CC02266H

B2-structured indium–platinum group metal high-entropy intermetallic nanoparticles†

Masashi Nakamura,^a Dongshuang Wu,*^a Megumi Mukoyoshi,

^a Kohei Kusada,

^ab Takaaki Toriyama,^c Tomokazu Yamamoto,^c Syo Matsumura,^d Yasukazu Murakami,^ce Shogo Kawaguchi,

^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, Sakyo-ku, Kyoto 606-8502, Japan
E-mail: dongshuang.wu@ntu.edu.sg, kitagawa@kuchem.kyoto-u.ac.jp

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

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

^d National Institute of Technology, Kurume College, 1-1-1 Komorino, Kurume, Fukuoka 830-8555, Japan

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

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

^g Department of Physics, Graduate School of Science, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan

Abstract

We first report the synthesis of B2-structured indium–platinum group metal high-entropy intermetallic nanoparticles (In–PGM HEI NPs). The synthesis was achieved by a wet-chemistry method and subsequent heat treatment. The crystal structure of these NPs is unique in the coexistence of completely orderly arranged indium and disorderly arranged PGMs.

Chemical Communications

B2-structured indium–platinum group metal high-entropy intermetallic nanoparticles†

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