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

Chem Commun (Camb). 2024 Dec 3;60(97):14388-14390. doi: 10.1039/d4cc05503a.

Authors

Fumitaka Takeiri^{1

2}, Keiko Kusumoto^{1

3}, Kosuke Kawai⁴, Hiroshi Yaguchi¹, Takashi Saito⁵, Kazuhiro Mori⁵, Saburo Hosokawa⁶, Masashi Okubo⁴, Genki Kobayashi^{1

4}

Affiliations

¹ Solid State Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, Saitama 351-0198, Japan. [email protected].
² Department of Chemistry, Kindai University, Osaka 577-8502, Japan.
³ Department of Structural Molecular Science, School of Physical Sciences SOKENDAI (The Graduate University for Advanced Studies), Aichi 444-8585, Japan.
⁴ Department of Chemistry, Electrical Engineering and Bioscience, Waseda University, Tokyo 169-8555, Japan.
⁵ Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan.
⁶ Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Kyoto 6068585, Japan.

PMID: 39555583
DOI: 10.1039/d4cc05503a

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.