期刊
ACS NANO
卷 13, 期 10, 页码 11874-11881出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b05933
关键词
hydrogen evolution; two-dimensional materials; tantalum disulfide; lattice mismatch; electron injection; density functional theory
类别
资金
- National Natural Science Foundation of China [51722206]
- China Postdoctoral Science Foundation [2018M641346]
- Youth 1000-Talent Program of China, Guangdong Innovative and Entrepreneurial Research Team Program [2017ZT07C341]
- Guangdong Innovation Research Team for Higher Education [2017KCXTD030]
- High-level Talents Project of Dongguan University of Technology [KCYKYQD2017017]
- Bureau of Industry and Information Technology of Shenzhen for the 2017 Graphene Manufacturing Innovation Center Project [201901171523]
- Development and Reform Commission of Shenzhen Municipality
Metallic transition metal dichalcogenides, such as tantalum disulfide (TaS2), have recently emerged as promising electrocatalysts for the hydrogen evolution reaction. This work reports an effective strategy to further including lattice mismatch and electron injection between Lattice mismatch Charge transfer tune their performance through interfacial engineering, electrocatalysts and the underlying substrates. A unique two-zone chemical vapor deposition technique has been developed, and 2D TaS2 has been successfully grown on four different substrates, including glassy carbon, carbon fibers, Mo foil, and Au foil, providing excellent platforms to study catalyst-substrate interactions. Among them, TaS2 on Au foil offers the best performance with lowest overpotential and smallest charge transfer resistance, due to a suitable lattice mismatch and charge injection between TaS2 and Au, as revealed by theoretical calculations and experimental measurements. This work highlights the key roles the substrate plays in the catalysis and demonstrates the validity of interfacial engineering in catalyst design.
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