Electrocatalytic activity of various hexagonal ferrites in OER process

D A Vinnik; V V Kokovkin; V V Volchek; V E Zhivulin; P A Abramov; N A Cherkasova; Zhipeng Sun; M I Sayyed; D I Tishkevich; A V Trukhanov

doi:10.1016/j.matchemphys.2021.124818

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Electrocatalytic activity of various hexagonal ferrites in OER process

Journal article

Peer reviewed

Electrocatalytic activity of various hexagonal ferrites in OER process

D A Vinnik, V V Kokovkin, V V Volchek, V E Zhivulin, P A Abramov, N A Cherkasova, Zhipeng Sun, M I Sayyed, D I Tishkevich and A V Trukhanov

Materials chemistry and physics, Vol.270, p.1

15/09/2021

DOI: https://doi.org/10.1016/j.matchemphys.2021.124818

Abstract

Barium hexaferrite

Electrokinetics

Ferrites

Oxygen evolution reactions

Substitutes

Two series of the ferrite-based materials have been synthesized for an oxygen evolution reaction (OER) activity screening. Series 1 includes different types of the ferrites: S-type (BaFe2O4), R-type (BaFe4Ti2O11), M-type (BaFe12O19) and tetravalent substituted M-type (BaFe11TiO19, BaFe10Ti2O19). Series 2 consists of a divalent substituted M-type ferrites (BaFe11·9Co0·1O18.95, BaFe11·9Ni0·1O18.95, BaFe11·9Zn0·1O18.96). The thermodynamic and electrokinetic approaches have been used to evaluate the best catalyst from both series of samples. According to the thermodynamics BaFe11·9Ni0·1O18.95 is the most preferable, while according to the kinetics BaFe10Ti2O19 has the best Tafel slope.

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Title: Electrocatalytic activity of various hexagonal ferrites in OER process
Creators - without role: D A Vinnik - South Ural State University
V V Kokovkin - Nikolaev Institute of Inorganic Chemistry
V V Volchek - Nikolaev Institute of Inorganic Chemistry
V E Zhivulin - South Ural State University
P A Abramov - South Ural State University
N A Cherkasova - South Ural State University
Zhipeng Sun - Guangdong University of Technology
M I Sayyed - Imam Abdulrahman Bin Faisal University
D I Tishkevich - South Ural State University
A V Trukhanov
Publication Details: Materials chemistry and physics, Vol.270, p.1
Publisher: Elsevier BV
Identifiers: 9915355008331
Academic Unit: Imam Abdulrahman Bin Faisal University
Language: English
Resource Type: Journal article