期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 34, 页码 13795-13800出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta02254h
关键词
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资金
- U.S. Department of Energy [DE-EE0003208]
- Research Growth Initiative Program of the University of Wisconsin-Milwaukee (UWM)
Cost-effective catalysts are the key to the successful deployment of microbial electrolysis cells (MECs) for hydrogen production from organic wastes. Herein, we report a novel catalyst for hydrogen evolution in MECs based on a 3D hybrid of layered MoS2/nitrogen-doped graphene nanosheet aerogels (3D MoS2/N-GAs) that were prepared by a facile hydrothermal approach. A high output current density of 0.36 mA cm(-2) with a hydrogen production rate of 0.19 m(3) H-2 m(-3) d(-1) was achieved for the hybrid at a 0.8 V bias, significantly higher than that of MoS2 nanosheets and N-GAs alone and comparable to that of the Pt/C catalyst when being applied in MECs. The outstanding performance of the hybrid benefits from its 3D conductive networks, porous structure, and strong synergic effects between MoS2 nanosheets and N-GAs, making it a promising catalyst for hydrogen production from wastewater through bio-electrochemical reactions.
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