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

Chem Commun (Camb). 2023 Aug 1;59(62):9485-9488. doi: 10.1039/d3cc02266h.

Authors

Affiliations

¹ Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan. dongshuang.wu@ntu.edu.sg.
² The HAKUBI Center for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
³ The Ultramicroscopy Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
⁴ National Institute of Technology, Kurume College, 1-1-1 Komorino, Kurume, Fukuoka 830-8555, Japan.
⁵ Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
⁶ 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, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.

PMID: 37439509
DOI: 10.1039/d3cc02266h

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.