Li2NbHO2: a new transition-metal oxyhydride with rock-salt-type structure

Fumitaka Takeiri; Keiko Kusumoto; Kosuke Kawai; Hiroshi Yaguchi; Takashi Saito; Kazuhiro Mori; Saburo Hosokawa; Masashi Okubo; Genki Kobayashi

doi:10.1039/D4CC05503A

Li₂NbHO₂: a new transition-metal oxyhydride with rock-salt-type structure†

Fumitaka Takeiri,

^ab Keiko Kusumoto,

^ac Kosuke Kawai,

^d Hiroshi Yaguchi,

^a Takashi Saito,

^e Kazuhiro Mori,^e Saburo Hosokawa,

^f Masashi Okubo

^d and Genki Kobayashi

*^ad

Author affiliations

* Corresponding authors

^a Solid State Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, Saitama 351-0198, Japan
E-mail: genki.kobayashi@riken.jp

^b Department of Chemistry, Kindai University, Osaka 577-8502, Japan

^c Department of Structural Molecular Science, School of Physical Sciences SOKENDAI (The Graduate University for Advanced Studies), Aichi 444–8585, Japan

^d Department of Chemistry, Electrical Engineering and Bioscience, Waseda University, Tokyo 169-8555, Japan

^e Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan

^f Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Kyoto 6068585, Japan

Abstract

Transition-metal oxyhydrides are an emerging class of functional materials; however, the known compounds have mostly been limited to perovskite-type sturctures. Here, we successfully synthesized Li₂NbHO₂, the first example of a rock-salt-type transition-metal oxyhydride, using mechanochemical methods. Galvanostatic charge/discharge tests revealed that Li₂NbHO₂ functions as an electrode for lithium secondary batteries.

This article is part of the themed collections: Chemical Communications HOT Articles 2024 and Chemistry for a Sustainable World – Celebrating Our Community Tackling Global Challenges

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Article information

DOI: https://doi.org/10.1039/D4CC05503A
Article type: Communication
Submitted: 20 Oct 2024
Accepted: 12 Nov 2024
First published: 12 Nov 2024

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Chem. Commun., 2024, Advance Article

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Li₂NbHO₂: a new transition-metal oxyhydride with rock-salt-type structure

F. Takeiri, K. Kusumoto, K. Kawai, H. Yaguchi, T. Saito, K. Mori, S. Hosokawa, M. Okubo and G. Kobayashi, Chem. Commun., 2024, Advance Article , DOI: 10.1039/D4CC05503A

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