A one-step synthesis of a Ta3N5 nanorod photoanode from Ta plates and NH4Cl powder for photoelectrochemical water oxidation

Yao Xiang; Boyang Zhang; Jintao Liu; Shanshan Chen; Takashi Hisatomi; Kazunari Domen; Guijun Ma

doi:10.1039/D0CC05044J

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A one-step synthesis of a Ta₃N₅ nanorod photoanode from Ta plates and NH₄Cl powder for photoelectrochemical water oxidation†

Yao Xiang,^ab Boyang Zhang,

^ab Jintao Liu,^ab Shanshan Chen,

^c Takashi Hisatomi,

^c Kazunari Domen

^cd and Guijun Ma

*^a

Author affiliations

* Corresponding authors

^a School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
E-mail: magj@shanghaitech.edu.cn

^b University of Chinese Academy of Sciences, Beijing 100049, China

^c Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan

^d Office of University Professors, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Abstract

A rod-like Ta₃N₅ thin film was synthesized by calcining a vacuum-sealed mixture of Ta metal plates and NH₄Cl powder. Photoelectrochemical water oxidation results showed that an anodic photocurrent of 3.2 mA cm⁻² at 1.23 V (vs. RHE) with a faradaic efficiency of unity for O₂ evolution could be achieved by employing the as-prepared Ta₃N₅/Ta as a photoanode.

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Article information

DOI: https://doi.org/10.1039/D0CC05044J
Article type: Communication
Submitted: 23 Jul 2020
Accepted: 22 Aug 2020
First published: 24 Aug 2020

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Chem. Commun., 2020,56, 11843-11846

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A one-step synthesis of a Ta₃N₅ nanorod photoanode from Ta plates and NH₄Cl powder for photoelectrochemical water oxidation

Y. Xiang, B. Zhang, J. Liu, S. Chen, T. Hisatomi, K. Domen and G. Ma, Chem. Commun., 2020, 56, 11843 DOI: 10.1039/D0CC05044J

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