期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 23, 页码 21086-21093出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b04471
关键词
porous coordination polymer design; ultrathin layer; chemical stability; Cu2+ active site; electrocatalytic hydrogen evolution; mechanism study
资金
- National Natural Science Foundation of China [21671102]
- National Natural Science Foundation of Jiangsu Province [BK20161538]
- Innovative Research Team Program by the Ministry of Education of China [IRT-17R54]
- Six Talent Peaks Project in Jiangsu Province [JY-030]
- State Key Laboratory of Materials-Oriented Chemical Engineering [ZK201803]
- Young and Middle-aged Academic Leader of Jiangsu Provincial Blue Project
Due to the extremely high number of accessible active sites and short diffusion path, porous coordination polymer (PCP) nanosheets have demonstrated a variety of promising applications, especially for energy conversion and mass transfer. However, the development of chemically stable PCP nanosheets with dense active sites and large lateral size is a great challenge in terms of feasible considerations. Herein, we first designed and prepared a kind of chemically stable PCP nanosheets via a bottom-up and a top-down integral strategy. Featuring densely exposed and periodic Cu2+ active sites (2.1 x 10(6) per mu m(2)), as well as ultrathin nature (5 nm) and significant pores (18 angstrom), this nanosheet demonstrated remarkable performance of electrocatalytic hydrogen evolution. Furthermore, one plausible process and the effect of Cu2+ active sites were proposed and validated by density functional theory calculations.
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