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Issue 15, 2017
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Simple preparation of highly active water splitting FTO/BiVO4 photoanode modified with tri-layer water oxidation catalysts

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Abstract

A colloidal BiVO4 solution, prepared from equimolar mixing of Bi(NO3)3·5H2O and NH4VO3 in MeOH containing 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 technique; it was sintered at 450 °C for 2 h to produce a super highly mechanically stable film of nanocrystalline scheelite-monoclinic, s-m BiVO4 photoanode. This technique endowed an excellent solar-driven water splitting 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 left over in the resulting film, and they did not affect its crystalline phase.

Graphical abstract: Simple preparation of highly active water splitting FTO/BiVO4 photoanode modified with tri-layer water oxidation catalysts

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Publication details

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


Article type: Communication
DOI: 10.1039/C7TA00156H
Citation: J. Mater. Chem. A, 2017,5, 6825-6831
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    Simple preparation of highly active water splitting FTO/BiVO4 photoanode modified with tri-layer water oxidation catalysts

    E. A. Mohamed, Z. N. Zahran and Y. Naruta, J. Mater. Chem. A, 2017, 5, 6825
    DOI: 10.1039/C7TA00156H

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