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Correlating the effect of preparation methods on the structural and magnetic properties, and reducibility of CuFe2O4 catalysts
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Document Title
Correlating the effect of preparation methods on the structural and magnetic properties, and reducibility of CuFe2O4 catalysts
Author
Khunphonoi R, Khemthong P, Luadthong C, Kuboon S, Kongmark C, Viriya-empikul N, Kidkhunthod P, Pinitsoontorn S, Faungnawakij K
Name from Authors Collection
Affiliations
Khon Kaen University; National Science & Technology Development Agency - Thailand; National Nanotechnology Center (NANOTEC); Suranaree University of Technology; Thammasat University; Kasetsart University; King Mongkuts University of Technology Thonburi; Khon Kaen University
Type
Article
Source Title
RSC ADVANCES
Year
2022
Volume
12
Issue
24
Page
15526-15533
Open Access
gold, Green Published
Publisher
ROYAL SOC CHEMISTRY
DOI
10.1039/d2ra01708c
Format
Abstract
CuFe2O4 spinel oxide has attracted research interest because of its versatile practical applications, especially for catalysis. In this study, nanometre-sized CuFe2O4 particles were prepared by three different methods, including nanospace confinement in SBA-15, hard template removal, and sol-gel combustion. The relationship between structure, size, magnetic behaviour, and reducibility of the catalysts was further investigated by various advanced techniques. Samples prepared by impregnation and hard template removal show high surface area and small crystallite size with superparamagnetic behaviour. In contrast, the sol-gel sample exhibits ferromagnetic properties with a large crystallite size and low surface area. Although all samples present a tetragonal crystal structure, the distributions of Fe and Cu cations in tetrahedral and octahedral sites in the spinel structure are different. The reducibility results demonstrate that the supported CuFe2O4/SBA-15 shows the lowest reduction profile. These results could suggest that the synthesis method strongly affects the crystal properties and cation distribution in the spinel structure, microstructure, surface area and reducibility, which are among the most relevant physicochemical properties for the catalytic activity.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
Thailand Research Fund (TRF); NANOTEC through the Young Research Grants [TRG5780192]; Fundamental Fund 2022 (the National Science, Research and Innovation Fund (NSRF), Thailand)
License
CC BY-NC
Rights
Authors
Publication Source
WOS