期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 30, 页码 33586-33594出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c02951
关键词
2D/1D; electrocatalyst; ReS2; CoS2; hydrogen evolution reaction
资金
- National Key R&D Program of China [2016YFB0401501]
- National Natural Science Foundation of China Youth Fund [51901081]
- Science and Technology Project of Guangdong Province [2015B090913004, 2020A1515010585]
- Cultivation Project of National Engineering Technology Center [2017B090903008]
Two-dimensional/one-dimensional (2D/1D) heterostructures have received much attention from researchers for their abundant catalytically active sites and low contact resistance due to formation of chemical bonds at the interface. The investigation of such heterostructures, however, is confined to lattice-matched materials, which severely limits the material candidates. Herein, we demonstrate a lattice-mismatched 2D/1D heterostructured electrocatalyst consisting of 2D ReS2 nanosheets and 1D CoS2 nanowires. We propose that the higher surface energy of the CoS2 nanowire and the lattice mismatch between 1D and 2D units are crucial for the growth process of ReS2 nanosheets. More importantly, the terminal S(2)(-)exposed on the surface of CoS2 nanowires serves not only as the nucleus of ReS2 nanosheets but also as a bridge to enhance electron transport efficiency. Thus, the ReS2/CoS2 heterostructures show outstanding hydrogen evolution reaction performance. This work is of general interest for the design of complex multidimensional nano-heterostructures with outstanding functionalities.
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