期刊
ADVANCED ENERGY MATERIALS
卷 9, 期 11, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201803402
关键词
hydrogen production; metal organic frameworks; photocatalytic; 2D nanosheets
类别
资金
- Australian Research Council (ARC) through the Discovery Project programs [FL170100154, DP160104866, DP170104464]
- Natural Science Foundation of China [21576202]
- Australian Research Council (ARC) through the Linkage Project program [LP160100927]
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)center dot 0.5nH(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 Zn0.8Cd0.2S 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 mu mol 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.
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