Radiation damage studies by x-ray photoelectron spectroscopy. III. Electron irradiated halates and perhalates

Journal Article · Sat Dec 01 00:00:00 EST 1979 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.438213· OSTI ID:5977436

Sasaki, T; Williams, R S; Wong, J S; Shirley, D A

X-ray photoelectron spectroscopy (XPS) was employed to identify radiolytic products in NaClO/sub 3/, LiClO/sub 3/, LiBrO/sub 3/, and LiIO/sub 4/ which were irradiated in situ with 1.4 keV electrons. While LiIO/sub 4/ was exceedingly resistant to radiation damage, the remaining compounds decomposed readily by an apparent stepwise release of oxygen from the parent oxyanion to form XO/sup -//sub 3/, XO/sup -//sub 2/, X/sup -/ (X=Cl or Br) and O/sub 2/. Heavy irradiation produced IO/sup -//sub 3/ in LiIO/sub 4/ and alkali halide, and alkali-metal oxide in the remaining compounds. These final products were cathodochromic, with both trapped electron (F or anion vacancy) and hole (V/sub k/ or X/sup -//sub 2/) centers being formed. Photobleaching of these centers also induced a partial reoxidation of the halogen species that had been formed by radiation-induced reduction. Comparison of the production rate of Li/sub 2/O with that of X/sup -//sub 2/+X/sup -/ suggests that Li/sub 2/O is not a primary product,but may be produced via oxidation of colloidal particles of metallic lithium in the alkali halide layer of the heavily irradiated samples.

• Research Organization: Materials and Molecular Research Division, Lawrence Berkeley Laboratory
• OSTI ID: 5977436
• Journal Information: J. Chem. Phys.; (United States), Vol. 71:11
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
LITHIUM COMPOUNDS
BROMATES
PERCHLORATES
PERIODATES
RADIOLYSIS
SODIUM COMPOUNDS
CHLORATES
ELECTRONS
IODATES
IRRADIATION
KEV RANGE 01-10
PHOTOELECTRON SPECTROSCOPY
ALKALI METAL COMPOUNDS
BROMINE COMPOUNDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
DECOMPOSITION
ELECTRON SPECTROSCOPY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HALOGEN COMPOUNDS
IODINE COMPOUNDS
KEV RANGE
LEPTONS
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
SPECTROSCOPY
400600* - Radiation Chemistry