Tungsten Oxide Nanopowders: Pulse Alternating Current Electrosynthesis, Structure Optimization and Performance in a Flow Photocatalytic Fuel Cell | Sciact - CRIS-system of Boreskov Institute of Catalysis

Tungsten Oxide Nanopowders: Pulse Alternating Current Electrosynthesis, Structure Optimization and Performance in a Flow Photocatalytic Fuel Cell Full article

Journal

Journal of Materials Science
ISSN: 0022-2461 , E-ISSN: 1573-4803

Output data

Year: 2023, Volume: 58, Number: 27, Pages: 11187-11197 Pages count : 11 DOI: 10.1007/s10853-023-08697-9

Tags

Charge transfer; Chlorine compounds; Crystallinity; Electric impedance measurement; Electrolytes; Fuel cells; GlucoseImage enhancement; Nanostructured materials; Oxides; Photocatalytic activity; Platinum compounds; Structural optimization

Authors

Ulyankina Anna ¹ , Tsarenko Anastasia ¹ , Molodtsova Tatyana ¹ , Yatsenko Aleksey ¹ , Gorshenkov Mikhail ² , Kaichev Vasily ³ , Kuriganova Alexandra ¹ , Smirnova Nina ¹

Affiliations

1	Research Institute “Nanotechnologies and New Materials”, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia
2	Department of Physical Materials Science, National University of Science and Technology (MISIS), Moscow, Russia
3	Department of Investigation of Catalysts, Boreskov Institute of Catalysis, Novosibirsk, Russia

Funding (1)

Russian Science Foundation

21-79-00079 (121081200028-1)

Photocatalytic fuel cell (PFC) is a promising technology to produce electrical energy from transformation of both light and chemical energy of waste products/biomass. Tungsten oxide (WO3) nanopowder is synthesized via a facile and ecologically sound top-down approach using pulse alternating current as an oxidant and aqueous ammonium chloride solution as an electrolyte without any surfactants and organic solvents. The large photocurrent density enhancement for WO3 nanopowder annealed at 500 °C demonstrates the importance of WO3 crystallinity in governing its photo-assisted water oxidation. The improved photoactivity of WO3-500 photoanode is due to reduction of the density of deep trap states boosting the charge transfer efficiency. The optimized WO3 photoanode was used to build up a solar light responsive PFC system with a Pt/C air-breathing cathode and the organic electron donors with different functional groups acting as fuels. The maximum power density value increases in the order of formic acid, glycerol, ethanol, and glucose. When glucose was used as the fuel, the WO3-Pt/C PFC obtained the highest power density (Pmax) and current density (Jmax) of 140.8 μW cm−2 and 704 μA cm−2, respectively. This study provides an efficient way for large-scale electrochemical preparation of WO3 nanopowders from bulk tungsten for solar light responsive waste products/biomass-fueled PFC system.

Ulyankina A. , Tsarenko A. , Molodtsova T. , Yatsenko A. , Gorshenkov M. , Kaichev V. , Kuriganova A. , Smirnova N.
Tungsten Oxide Nanopowders: Pulse Alternating Current Electrosynthesis, Structure Optimization and Performance in a Flow Photocatalytic Fuel Cell
Journal of Materials Science. 2023. V.58. N27. P.11187-11197. DOI: 10.1007/s10853-023-08697-9 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Feb 23, 2023
Accepted:	Jun 13, 2023
Published print:	Jul 5, 2023
Published online:	Jul 5, 2023

Web of science:	WOS:001023892900001
Scopus:	2-s2.0-85163977674
Elibrary:	54369025
Chemical Abstracts:	2023:1410311
Chemical Abstracts (print):	183:270426
OpenAlex:	W4383218184

DB	Citing
OpenAlex	4
Scopus	7
Web of science	3
Elibrary	4