Photoelectrochemical oxidation of aromatic hydrocarbons and decamethyl ferrocene at the n-GaAs/room temperature molten salt electrolyte interface

Journal Article · Mon Mar 01 04:00:00 EST 1982 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2123908· OSTI ID:5086785

Thapar, R; Rajeshwar, K

Photoelectrochemical (PEC) oxidation of decamethyl ferrocene ((/eta//sup 5/-(CH/sub 3/)/sub 5/C/sub 5/)/sub 2/Fe), benzo (a) pyrene (BP), 9, 10-diphenylanthracene (DPA), anthracene (A), and hexamethyl benzene (HMB) on n-GaAs electrodes in contact with the aluminum chloride-n-butyl pyridinium chloride (AlCl/sub 3/-BPC) molten salt electrolyte, was studied by cyclic and linear sweep voltammetry. In the case of DPA and A, evidence from cyclic voltammetry indicated photooxidation to the dication, probably caused by injection of an electron from the cation radical into the conduction band in n-GaAs. The location of the reduction waves on n-GaAs in the cyclic voltammograms for BP, DPA, and A further indicated a second set of surface states situated very close to the valence bandedge. Linear sweep voltammograms on n-GaAs in the dark and under illumination showed the usual rectification behavior associated with n-type semiconductor/electrolye junctions. 16 refs.

• Research Organization: Colo State Univ, Fort Collins
• OSTI ID: 5086785
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 129:3; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
ANTHRACENE
AROMATICS
ARSENIC COMPOUNDS
ARSENIDES
AZINES
BENZENE
BENZOPYRENE
CARBON
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
CONDENSED AROMATICS
DIENES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
EQUIPMENT
FERROCENE
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IRON COMPLEXES
MOLTEN SALTS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
PHOTOELECTROCHEMICAL CELLS
PNICTIDES
POLYENES
PYRIDINES
PYRIDINIUM COMPOUNDS
QUATERNARY COMPOUNDS
SALTS
SOLAR EQUIPMENT
TRANSITION ELEMENT COMPLEXES
VOLTAMETRY