Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 42, Issue 22, Pages 15085-15095Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.04.283
Keywords
In2S3 film; Pyramid-like; Photoelectrochemical; Hydrogen
Categories
Funding
- National Natural Science Foundation of China [21606175, 51236007]
- China Postdoctoral Science Foundation [2014M560768]
- China Fundamental Research Funds for the Central Universities [xjj2015041]
Ask authors/readers for more resources
Herein, the pyramid-like In2S3 film was synthesized for photoelectrochemical (PEC) hydrogen generation using a facile hydrothermal route for the first time. The hydrothermal time was crucial to determine the morphology and composition of the as-prepared films. When the hydrothermal time lasted for 24 h, the pyramid-like In2S3 film could be achieved. With the increased hydrothermal time, the photocurrent first increased and then decreased, and the pyramid-like In2S3 film prepared for 24 h showed the highest photo current. After an annealing treatment, the photocurrent could be improved to 2.7 mA cm(-2) at 0.78 V vs. RHE, and a substantial hydrogen generation was observed. Compared to previously reported In2S3 films with different morphologies, the pyramid-like In2S3 film exhibited better PEC property. It was revealed that the remaining In2O3 after the synthesis of In2S3 had a great influence on the PEC performance. The pyramid-like In2S3 film with a moderate amount of In2O3 induced an efficient charge separation and transfer, as well as good light-absorption ability, which led to the superior PEC performance. This work has demonstrated great potentials of the pyramid-like In2S3 film for PEC hydrogen generation and opened a promising avenue towards the design and fabrication of novel pyramid-like nanostructures. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available