Template-free synthesis of Ta3N5 nanorod arrays for efficient photoelectrochemical water splitting

Chao Zhen; Lianzhou Wang; Gang Liu; Gao Qing (Max) Lu; Hui-Ming Cheng

doi:10.1039/C3CC40760H

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Template-free synthesis of Ta₃N₅nanorod arrays for efficient photoelectrochemical water splitting†

Chao Zhen,^a Lianzhou Wang,^b Gang Liu,*^a Gao Qing (Max) Lu^b and Hui-Ming Cheng^a

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* Corresponding authors

^a Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
E-mail: gangliu@imr.ac.cn
Fax: +86 24 23971682
Tel: +86-24-23971088

^b ARC Centre of Excellence for Functional Nanomaterials, The University of Queensland, Qld. 4072, Australia

Abstract

We report the template-free synthesis of Ta₃N₅ nanorod array films grown on Ta foil by a combination of a vapor-phase hydrothermal process and subsequent nitriding. The Ta₃N₅ nanorod array film modified with Co(OH)_x when used as a photoanode in a photoelectrochemical cell for water splitting yields a stable photocurrent density of 2.8 mA cm⁻² at 1.23 V_RHE under AM 1.5G simulated sunlight. The incident photon-to-current conversion efficiency at 480 nm is determined to be 37.8%.

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Article information

DOI: https://doi.org/10.1039/C3CC40760H
Article type: Communication
Submitted: 29 Jan 2013
Accepted: 25 Feb 2013
First published: 06 Mar 2013

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Chem. Commun., 2013,49, 3019-3021

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Template-free synthesis of Ta₃N₅ nanorod arrays for efficient photoelectrochemical water splitting

C. Zhen, L. Wang, G. Liu, G. Q. (. Lu and H. Cheng, Chem. Commun., 2013, 49, 3019 DOI: 10.1039/C3CC40760H

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