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2D Metal Organic Framework Nanosheet: A Universal Platform Promoting Highly Efficient Visible‐Light‐Induced Hydrogen Production
Author(s) -
Ran Jingrun,
Qu Jiangtao,
Zhang Hongping,
Wen Tian,
Wang Hailong,
Chen Shuangming,
Song Li,
Zhang Xuliang,
Jing Liqiang,
Zheng Rongkun,
Qiao ShiZhang
Publication year - 2019
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201803402
Subject(s) - materials science , nanosheet , metal organic framework , hydrogen production , photocatalysis , heterojunction , catalysis , nanotechnology , noble metal , metal , visible spectrum , chemical engineering , optoelectronics , chemistry , organic chemistry , metallurgy , adsorption , engineering
2D metal organic frameworks (MOF) have received tremendous attention due to their organic–inorganic hybrid nature, large surface area, highly exposed active sites, and ultrathin thickness. However, the application of 2D MOF in light‐to‐hydrogen (H 2 ) conversion is rarely reported. Here, a novel 2D MOF [Ni(phen)(oba)] n ·0.5 n H 2 O (phen = 1,10‐phenanthroline, oba = 4,4′‐oxybis(benzoate)) is for the first time employed as a general, high‐performance, and earth‐abundant platform to support CdS or Zn 0.8 Cd 0.2 S for achieving tremendously improved visible‐light‐induced H 2 ‐production activity. Particularly, the CdS‐loaded 2D MOF exhibits an excellent H 2 ‐production activity of 45 201 µmol h −1 g −1 , even exceeding that of Pt‐loaded CdS by 185%. Advanced characterizations, e.g., synchrotron‐based X‐ray absorption near edge structure, and theoretical calculations disclose that the interactive nature between 2D MOF and CdS, combined with the high surface area, abundant reactive centers, and favorable band structure of 2D MOFs, synergistically contribute to this distinguished photocatalytic performance. The work not only demonstrates that the earth‐abundant 2D MOF can serve as a versatile and effective platform supporting metal sulfides to boost their photocatalytic H 2 ‐production performance without noble‐metal co‐catalysts, but also paves avenues to the design and synthesis of 2D‐MOF‐based heterostructures for catalysis and electronics applications.