Ring-shaped polyoxometalate built by {Mn4PW9} and PO4 units for efficient visible-light-driven hydrogen evolution

Hai Lou Li, Mo Zhang, Chen Lian, Zhong Ling Lang*, Hongjin Lv*, Guo Yu Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

A novel mixed-valence, ring-shaped multinuclear Mn-containing polyoxometalate, [H2N(CH3)2]15 NaH8-[MnIII3MnIV3-O)3(OAc)PO4(B-α-PW9O34)]4· 36H2O (1) was made and systematically characterized using various spectroscopic and computational techniques. Its polyoxoanion can be described as a tetramer made of four [MnIII3MnIV3-O)3(OAc) (B-α-PW9O34)]3− ({MnIII3MnIV(PW9)}) clusters and four PO4 linkers. Significantly, this structurally new complex 1 can efficiently catalyze hydrogen evolution with 23 μmol H2 gas after 12 h of visible-light irradiation using a three-component system. We propose a possible catalytic hydrogen-evolving mechanism based on both experimental results and density functional theory (DFT) calculations.

Original languageEnglish
Pages (from-to)2095
Number of pages1
JournalCCS Chemistry
Volume3
Issue number8
DOIs
Publication statusPublished - Aug 2021

Keywords

  • Hydrogen evolution
  • Polynuclear manganese clusters
  • Polyoxometalates
  • Visible-light irradiation

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