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- Title
Solvent Effect on the Fabrication of POMs-Based MOFs Microspheres: Dual-Function in Electrocatalytic Hydrogen Evolution and Catalytic Reduction of Cr<sup>6+</sup>.
- Authors
Liu, Min-Min; Wu, Xue-Min; Guo, Hong-Xu; Huang, Xu-Guang; Ying, Shao-Ming
- Abstract
In this study, a novel polyoxometalates-based metal-organic frameworks (POMOFs) microsphere, that is [Ni(phen)H2O]·V2O6 (phen is o-phenanthroline), have been successfully fabricated by one-pot simple hydro(solvent)thermal reaction through regulating different solvent ratios (H2O/EtOH). The experimental results show that the solvent effect has a significant effect on the micro-morphology and the catalytic activity of the materials. The dual-function in electrocatalytic hydrogen evolution and catalytic reduction of Cr6+ of the as-prepared POMOFs microspheres have been also studied. The POMOF(V,Ni)_3 catalyst prepared in the medium of pure ethanol have the best catalytic activity, in which the overpotential of 159 mV for the electrode is comparable to that of MoS2-based electrode material, and the rate constant k reaches 0.14 in the process of catalytic reduction of Cr6+. In this study, a novel polyoxometalates-based metal-organic frameworks (POMOFs) microsphere [Ni(phen)H2O]·V2O6 have been successfully fabricated by one-pot simple hydro(solvent)thermal reaction through regulating different solvent ratios. The dual-function in electrocatalytic hydrogen evolution and catalytic reduction of Cr6+ of the as-prepared sample have been also studied.
- Subjects
CATALYTIC reduction; METAL-organic frameworks; CATALYTIC activity; HYDROGEN evolution reactions; HYDROGEN; CATALYSIS; SOLVENTS; MICROSPHERES
- Publication
Catalysis Letters, 2023, Vol 153, Issue 9, p2803
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-022-04205-x