EPR investigation of UV-irradiated single crystals of chromate-doped methylammonium and potassium aluminum alums

Jiang Tsu Yu; Ssu Hao Lou

doi:10.1006/jssc.1993.1229

EPR investigation of UV-irradiated single crystals of chromate-doped methylammonium and potassium aluminum alums

Jiang Tsu Yu, Ssu Hao Lou

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Electron paramagnetic resonance (EPR) has been used to identify and analyze a CrO^3-₄ species produced by UV irradiation in single crystals of chromate-doped methylammonium aluminum alum and in potassium aluminum alum lightly codoped with the methylammonium ion. The photoreduction is a simple reduction of the type CrO^2-₄ + e^- → CrO^3-₄, where the odd electron is a photoelectron liberated by the methylammonium ion.

Original language	English
Pages (from-to)	385-391
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	105
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1993.1229
Publication status	Published - 1993 Aug

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1006/jssc.1993.1229

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title = "EPR investigation of UV-irradiated single crystals of chromate-doped methylammonium and potassium aluminum alums",

abstract = "Electron paramagnetic resonance (EPR) has been used to identify and analyze a CrO3-4 species produced by UV irradiation in single crystals of chromate-doped methylammonium aluminum alum and in potassium aluminum alum lightly codoped with the methylammonium ion. The photoreduction is a simple reduction of the type CrO2-4 + e- → CrO3-4, where the odd electron is a photoelectron liberated by the methylammonium ion.",

author = "Yu, {Jiang Tsu} and Lou, {Ssu Hao}",

year = "1993",

month = aug,

doi = "10.1006/jssc.1993.1229",

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volume = "105",

pages = "385--391",

journal = "Journal of Solid State Chemistry",

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AU - Yu, Jiang Tsu

AU - Lou, Ssu Hao

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N2 - Electron paramagnetic resonance (EPR) has been used to identify and analyze a CrO3-4 species produced by UV irradiation in single crystals of chromate-doped methylammonium aluminum alum and in potassium aluminum alum lightly codoped with the methylammonium ion. The photoreduction is a simple reduction of the type CrO2-4 + e- → CrO3-4, where the odd electron is a photoelectron liberated by the methylammonium ion.

AB - Electron paramagnetic resonance (EPR) has been used to identify and analyze a CrO3-4 species produced by UV irradiation in single crystals of chromate-doped methylammonium aluminum alum and in potassium aluminum alum lightly codoped with the methylammonium ion. The photoreduction is a simple reduction of the type CrO2-4 + e- → CrO3-4, where the odd electron is a photoelectron liberated by the methylammonium ion.

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EPR investigation of UV-irradiated single crystals of chromate-doped methylammonium and potassium aluminum alums

Abstract

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