CdS/CdSe co-sensitized 3D SnO2/TiO2 sea urchin-like nanotube arrays as an efficient photoanode for photoelectrochemical hydrogen generation

Cheng Li; Haifeng Zhang; Chuanwei Cheng

doi:10.1039/C6RA02176J

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CdS/CdSe co-sensitized 3D SnO₂/TiO₂ sea urchin-like nanotube arrays as an efficient photoanode for photoelectrochemical hydrogen generation†

Cheng Li,^a Haifeng Zhang^a and Chuanwei Cheng*^a

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* Corresponding authors

^a Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai 200092, P. R. China
E-mail: cwcheng@tongji.edu.cn

Abstract

In this paper, we report a novel electrode of 3D ordered CdS/CdSe co-sensitized sea urchin-like SnO₂/TiO₂ nanotube arrays for photoelectrochemical hydrogen production. This novel photoanode presents excellent PEC performance, yielding a maximum photocurrent density of ∼6 mA cm⁻² at 1.4 V vs. RHE under light illumination AM 1.5 (100 mW cm⁻²), which is due to the 3D structural effect of the SnO₂/TiO₂ sea urchin nanotubes, stepwise cascade band alignment between SnO₂/TiO₂ and CdS/CdSe as well as the improvement of light harvesting in the visible region.

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Article information

DOI: https://doi.org/10.1039/C6RA02176J
Article type: Communication
Submitted: 25 Jan 2016
Accepted: 28 Mar 2016
First published: 30 Mar 2016

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RSC Adv., 2016,6, 37407-37411

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CdS/CdSe co-sensitized 3D SnO₂/TiO₂ sea urchin-like nanotube arrays as an efficient photoanode for photoelectrochemical hydrogen generation

C. Li, H. Zhang and C. Cheng, RSC Adv., 2016, 6, 37407 DOI: 10.1039/C6RA02176J

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