Spontaneous adsorption of iridium chloride complex on oxychloride photocatalysts provides efficient and durable reaction site for water oxidation

Hajime Suzuki; Kengo Minamimoto; Yusuke Ishii; Yudai Furuta; Osamu Tomita; Akinobu Nakada; Shunsuke Nozawa; Ryu Abe

doi:10.1039/D4CC06683A

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Spontaneous adsorption of iridium chloride complex on oxychloride photocatalysts provides efficient and durable reaction site for water oxidation†

Hajime Suzuki,

*^a Kengo Minamimoto,^a Yusuke Ishii,

^a Yudai Furuta,^a Osamu Tomita,

^a Akinobu Nakada,

^ab Shunsuke Nozawa^c and Ryu Abe

*^a

Author affiliations

* Corresponding authors

^a Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan

^b Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan

^c Photon Factory (PF), Institute of Materials Structure Science (IMSS), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan

Abstract

The visible-light-driven O₂ evolution on oxychloride photocatalysts, such as Bi₄NbO₈Cl, was significantly enhanced by stirring in an aqueous solution containing IrCl₆³⁻ in the dark. Various characterizations indicated that highly dispersed IrO_xH_yCl_z-like species spontaneously formed on the oxychloride surface, serving as effective and stable cocatalysts for enhancing O₂ evolution.

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Article information

DOI: https://doi.org/10.1039/D4CC06683A
Article type: Communication
Submitted: 22 Dec 2024
Accepted: 23 Jan 2025
First published: 23 Jan 2025
This article is Open Access

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Chem. Commun., 2025,61, 3836-3839

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Spontaneous adsorption of iridium chloride complex on oxychloride photocatalysts provides efficient and durable reaction site for water oxidation

H. Suzuki, K. Minamimoto, Y. Ishii, Y. Furuta, O. Tomita, A. Nakada, S. Nozawa and R. Abe, Chem. Commun., 2025, 61, 3836 DOI: 10.1039/D4CC06683A

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Chemical Communications

Spontaneous adsorption of iridium chloride complex on oxychloride photocatalysts provides efficient and durable reaction site for water oxidation†

Abstract

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Spontaneous adsorption of iridium chloride complex on oxychloride photocatalysts provides efficient and durable reaction site for water oxidation

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