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Simple preparation of highly active water splitting FTO/BiVO4 photoanode modified with tri-layers water oxidation catalysts

Abstract

A colloidal BiVO4 solution prepared from equimolar mixing of Bi(NO3)3.5H2O and NH4VO3 in MeOH containg 15% (V/V) 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMI triflate) ionic liquid was coated on a fluorine doped tin oxide conducting glass (FTO) with a doctor blade techniquie and sintered at 450 oC for 2-h to produce a super highly mechanically stable film of nanocrystalline sheelite-monoclinic, s-m BiVO4 photoanode with a benchmark solar-driven water spliting activity for both the bare photoanode and that modified with tri-layers of non-precious water oxidation catalysts. The presence of EMI triflate in the precursor solution is essential for the mechanical stability of the film. Moreover, Carbon, nitrogen, and oxygen of the EMI triflate were leftover in the resulting film without affecting its crystalline phase.

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Publication details

The article was received on 06 Jan 2017, accepted on 17 Mar 2017, published on 20 Mar 2017 and first published online on 20 Mar 2017


Article type: Communication
DOI: 10.1039/C7TA00156H
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Simple preparation of highly active water splitting FTO/BiVO4 photoanode modified with tri-layers water oxidation catalysts

    E. A. Mohamed, Z. N. Zahran and Y. Naruta, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA00156H

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