Electrochemical Synthesis-Dependent Photoelectrochemical Properties of Tungsten Oxide Powders | Sciact - CRIS-system of Boreskov Institute of Catalysis

Electrochemical Synthesis-Dependent Photoelectrochemical Properties of Tungsten Oxide Powders Full article

Journal

ChemEngineering
ISSN: 2305-7084

Output data

Year: 2022, Volume: 6, Number: 2, Article number : 31, Pages count : 13 DOI: 10.3390/chemengineering6020031

Tags

electrochemical synthesis; photoelectrochemical reforming; pulse alternating current; tungsten oxide

Authors

Tsarenko Anastasia ¹ , Gorshenkov Mikhail ² , Yatsenko Aleksey ¹ , Zhigunov Denis ³ , Butova Vera ⁴ , Kaichev Vasily ⁵ , Ulyankina Anna ¹

Affiliations

1	Research Institute “Nanotechnologies and New Materials”, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, 346428, Russian Federation
2	Department of Physical Materials Science, National University of Science & Technology (MISIS), Moscow, 119049, Russian Federation
3	Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, Moscow, 121205, Russian Federation
4	The Smart Materials Research Institute, Southern Federal University, Rostov-on-Don, 344090, Russian Federation
5	Department of Investigation of Catalysts, Boreskov Institute of Catalysis, Novosibirsk, 630090, Russian Federation

Funding (1)

Russian Science Foundation

21-79-00079 (121081200028-1)

A rapid, facile, and environmentally benign strategy to electrochemical oxidation of metallic tungsten under pulse alternating current in an aqueous electrolyte solution was reported. Particle size, morphology, and electronic structure of the obtained WO3 nanopowders showed strong dependence on electrolyte composition (nitric, sulfuric, and oxalic acid). The use of oxalic acid as an electrolyte provides a gram-scale synthesis of WO3 nanopowders with tungsten electrochemical oxidation rate of up to 0.31 g·cm−2·h−1 that is much higher compared to the strong acids. The materials were examined as photoanodes in photoelectrochemical reforming of organic substances under solar light. WO3 synthesized in oxalic acid is shown to exhibit excellent activity towards the photoelectrochemical reforming of glucose and ethylene glycol, with photocurrents that are nearly equal to those achieved in the presence of simple alcohol such as ethanol. This work demonstrates the promise of pulse alternating current electrosynthesis in oxalic acid as an efficient and sustainable method to produce WO3 nanopowders for photoelectrochemical applications.

Tsarenko A. , Gorshenkov M. , Yatsenko A. , Zhigunov D. , Butova V. , Kaichev V. , Ulyankina A.
Electrochemical Synthesis-Dependent Photoelectrochemical Properties of Tungsten Oxide Powders
ChemEngineering. 2022. V.6. N2. 31 :1-13. DOI: 10.3390/chemengineering6020031 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Mar 9, 2022
Accepted:	Apr 13, 2022
Published print:	Apr 15, 2022
Published online:	Apr 15, 2022

Web of science:	WOS:000785379500001
Scopus:	2-s2.0-85129208559
Elibrary:	48582305
Chemical Abstracts:	2022:1135365
Chemical Abstracts (print):	178:352323
OpenAlex:	W4223953338

DB	Citing
Elibrary	9
Scopus	8
Web of science	6
OpenAlex	10