SYNTHESIS AND PPOPERTIES OF ZNO/ZNWO4 NANOCOMPOSITES FOR PHOTOELECTROCHEMICAL APPLICATIONS:

Author:

Ulyankina A. A.1,Tsarenko A. D.1,Molodtsova T. A.1,Gorshenkov M. V.2,Smirnova N. V.1

Affiliation:

1. Platov South-Russian State Polytechnic University (NPI)

2. Department of Physical Materials Science, National University of Science & Technology (MISIS)

Abstract

A series of ZnO/ZnWO4 nanocomposites with different ZnWO4 content based on ZnO and WO3 nanopowders electrochemically synthesized under pulse alternating current was obtained. A complex of physicochemical methods (X-ray diffraction, Raman spectroscopy, transmission electron microscopy, energy dispersive X-ray microanalysis) was used to study the composition and structural characteristics of the obtained materials. The nanocomposite with optimal composition (ZnO 90%, ZnWO4 ~6%) was used as a photoanode material for a flow photocatalytic fuel cell with sulfate electrolyte with the addition of organic and inorganic fuel. The maximum values of Eoc and Pmax, which were 850 mV and 85.8 μW/cm2, respectively, were achieved using Na2SO4 with the addition of glucose as a fuel.

Publisher

The Russian Academy of Sciences

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