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

Jiang-Tsu Yu, Ssu Hao Lou

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)385-391
Number of pages7
JournalJournal of Solid State Chemistry
Volume105
Issue number2
DOIs
Publication statusPublished - 1993 Jan 1

Fingerprint

alum
Chromates
chromates
Aluminum
Paramagnetic resonance
Potassium
potassium
electron paramagnetic resonance
Single crystals
aluminum
single crystals
Ions
Photoelectrons
photochemical reactions
ions
photoelectrons
Irradiation
irradiation
Electrons
electrons

ASJC Scopus subject areas

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

Cite this

EPR investigation of UV-irradiated single crystals of chromate-doped methylammonium and potassium aluminum alums. / Yu, Jiang-Tsu; Lou, Ssu Hao.

In: Journal of Solid State Chemistry, Vol. 105, No. 2, 01.01.1993, p. 385-391.

Research output: Contribution to journalArticle

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