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Semiconductor Electrodes: XXXVI . Characteristics of , Electrodes in Aqueous Solution
- Source :
- Journal of The Electrochemical Society. 128:945-952
- Publication Year :
- 1981
- Publisher :
- The Electrochemical Society, 1981.
-
Abstract
- Capacitance and voltammetric measurements were employed to investigate the electrochemical and photoelectrochemical (PEC) behavior of ,, and single crystal electrodes in aqueous solutions containing various redox couples (, , , Fe2+/ Fe3+, , and , where HV is heptyl viologen and MV is methyl viologen). In supporting electrolyte , the conduction bandedges of and , determined from the capacitance measurement, are at −0.14 and −0.44V vs. SCE, respectively, and the valence bandedge of is at 0.93V vs. SCE. A bandgap of 1.4 eV for was determined either from the photocurrent action spectrum or from the capacitance measurement. The specific effects of iodide on the capacitance and voltammetric behavior of layer‐type compounds are compared. The characteristics of several PEC cells are also described.
- Subjects :
- Photocurrent
Aqueous solution
Renewable Energy, Sustainability and the Environment
Band gap
Chemistry
Supporting electrolyte
Inorganic chemistry
Viologen
Condensed Matter Physics
Electrochemistry
Capacitance
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Electrode
Materials Chemistry
medicine
medicine.drug
Subjects
Details
- ISSN :
- 19457111 and 00134651
- Volume :
- 128
- Database :
- OpenAIRE
- Journal :
- Journal of The Electrochemical Society
- Accession number :
- edsair.doi...........9756ad42904f25d259159a67c88939b7