Investigation of electroreduction kinetics on modified p-InP in alkaline electrolyte

Journal Article · Sat Jun 01 00:00:00 EDT 1985 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2114109· OSTI ID:5347752

Cook, R L; Dempsey, P P; Sammells, A F

The electroreduction kinetics of surface modified p-InP were investigated. The surface was modifie by electrodeposition of Co, Ru, Rh, Pt, Co/Pt, Ru/Pt, and Rh/Pt. Exchange current densities (i/sub 0/) for hydrogen evolution were obtained both in the dark and under 100 mW/cm/sub 2/ illumination. For sequentially deposited metals i/sub 0/ values are lower compared to individually deposited metals during hydrogen evolution. Cathodic currents observed positive of the hydrogen-evolution region can be explained by electron-transfer processes involving p-InP surface states. In this latter potential region, i/sub 0/ values are higher for the sequentially deposited metals.

• Research Organization: Eltron Research Incorporated, Aurora, Illinois
• OSTI ID: 5347752
• Journal Information: J. Electrochem. Soc.; (United States), Vol. 132:6
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
08 HYDROGEN
INDIUM PHOSPHIDES
CHEMICAL REACTION KINETICS
REDUCTION
P-TYPE CONDUCTORS
PHOTOELECTROLYTIC CELLS
CHARGE EXCHANGE
COBALT
CURRENT DENSITY
ELECTRODEPOSITION
ELECTROLYTES
HYDROGEN PRODUCTION
PHOTOELECTROLYSIS
PLATINUM
RHODIUM
RUTHENIUM
CHEMICAL REACTIONS
DEPOSITION
ELECTROCHEMICAL CELLS
ELECTROLYSIS
ELECTROLYTIC CELLS
ELEMENTS
EQUIPMENT
INDIUM COMPOUNDS
KINETICS
LYSIS
MATERIALS
METALS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOELECTROCHEMICAL CELLS
PLATINUM METALS
PNICTIDES
REACTION KINETICS
SEMICONDUCTOR MATERIALS
SOLAR EQUIPMENT
SURFACE COATING
TRANSITION ELEMENTS
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
080101 - Hydrogen- Production- Electrolysis