Valence Change Ability and Geometrical Occupation of Substitution Cations Determine the Pseudocapacitance of Spinel Ferrite XFe2O4(X = Mn, Co, Ni, Fe)

Chao Wei; Zhenxing Feng; Murat Baisariyev; Linghui Yu; Li Zeng; Tianpin Wu; Haiyan Zhao; Yaqin Huang; Michael J. Bedzyk; Thirumany Sritharan; Zhichuan J. Xu

doi:10.1021/acs.chemmater.6b00713

Valence Change Ability and Geometrical Occupation of Substitution Cations Determine the Pseudocapacitance of Spinel Ferrite XFe₂O₄(X = Mn, Co, Ni, Fe)

Chao Wei, Zhenxing Feng, Murat Baisariyev, Linghui Yu, Li Zeng, Tianpin Wu, Haiyan Zhao, Yaqin Huang, Michael J. Bedzyk, Thirumany Sritharan, Zhichuan J. Xu^*

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article

51 Scopus citations

Abstract

A study was conducted to report an investigation on the pseudocapacitive performance of spinel ferrites using an in situ X-ray absorption technique. As the pseudocapacitive behavior was associated with redox reactions of metal ions in the near-surface regions of oxides, ferrite nanoparticles with diameters less than 10 nm were chosen to ensure the dominant contribution of the surface to X-ray absorption signals. In situ X-ray near edge structure (XANES) analysis was first conducted to screen the substitutions of Mn, Co, Ni, and Fe. The ability of the substitution cations to change their valence state within the spinel ferrite frame was found critical for offering pseudocapacitance.

Original language	English (US)
Pages (from-to)	4129-4133
Number of pages	5
Journal	Chemistry of Materials
Volume	28
Issue number	12
DOIs	https://doi.org/10.1021/acs.chemmater.6b00713
State	Published - Jan 1 2016

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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Wei, C., Feng, Z., Baisariyev, M., Yu, L., Zeng, L., Wu, T., Zhao, H., Huang, Y., Bedzyk, M. J., Sritharan, T., & Xu, Z. J. (2016). Valence Change Ability and Geometrical Occupation of Substitution Cations Determine the Pseudocapacitance of Spinel Ferrite XFe₂O₄(X = Mn, Co, Ni, Fe). Chemistry of Materials, 28(12), 4129-4133. https://doi.org/10.1021/acs.chemmater.6b00713

Wei, Chao ; Feng, Zhenxing ; Baisariyev, Murat ; Yu, Linghui ; Zeng, Li ; Wu, Tianpin ; Zhao, Haiyan ; Huang, Yaqin ; Bedzyk, Michael J. ; Sritharan, Thirumany ; Xu, Zhichuan J. / Valence Change Ability and Geometrical Occupation of Substitution Cations Determine the Pseudocapacitance of Spinel Ferrite XFe₂O₄(X = Mn, Co, Ni, Fe). In: Chemistry of Materials. 2016 ; Vol. 28, No. 12. pp. 4129-4133.

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abstract = "A study was conducted to report an investigation on the pseudocapacitive performance of spinel ferrites using an in situ X-ray absorption technique. As the pseudocapacitive behavior was associated with redox reactions of metal ions in the near-surface regions of oxides, ferrite nanoparticles with diameters less than 10 nm were chosen to ensure the dominant contribution of the surface to X-ray absorption signals. In situ X-ray near edge structure (XANES) analysis was first conducted to screen the substitutions of Mn, Co, Ni, and Fe. The ability of the substitution cations to change their valence state within the spinel ferrite frame was found critical for offering pseudocapacitance.",

author = "Chao Wei and Zhenxing Feng and Murat Baisariyev and Linghui Yu and Li Zeng and Tianpin Wu and Haiyan Zhao and Yaqin Huang and Bedzyk, {Michael J.} and Thirumany Sritharan and Xu, {Zhichuan J.}",

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Valence Change Ability and Geometrical Occupation of Substitution Cations Determine the Pseudocapacitance of Spinel Ferrite XFe₂O₄(X = Mn, Co, Ni, Fe). / Wei, Chao; Feng, Zhenxing; Baisariyev, Murat; Yu, Linghui; Zeng, Li; Wu, Tianpin; Zhao, Haiyan; Huang, Yaqin; Bedzyk, Michael J.; Sritharan, Thirumany; Xu, Zhichuan J.

In: Chemistry of Materials, Vol. 28, No. 12, 01.01.2016, p. 4129-4133.

Research output: Contribution to journal › Article

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