Evaluation of Some Thionine Redox Systems as Potential Regenerative Photogalvanic Batteries

Abstract

This report summarizes preliminary investigations on photoelectrical systems involving thionine dye and inorganic reducing agents; these systems offer potential for use as photogalvanic cells in solar energy conversion. The report stresses the thionine-cobalt(II)ethylene-diaminetetraacetate (EDTA) system, which has yielded voltages and currents comparable to and in some cases exceeding those which have been reported for the thionine-Fe(2+) system. Measurements on the thionine-CoEDTA(2-) system have been carried out using two types of transparent electrode, tin dioxide and gold/palladium. Effects of concentration and aging on voltages are reported here, as well as results of closed-circuit measurements under load.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1976
Accession Number
ADA021424

Entities

People

  • Aaron N. Fletcher
  • Dwight A. Fine

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Aqueous Solutions
  • Chemical Synthesis
  • Chemistry
  • Dyes
  • Electrical Measurement
  • Electrodes
  • Energy
  • Energy Conversion
  • Ground State
  • Light Sources
  • Measurement
  • Redox Indicators
  • Reducing Agents
  • Solar Energy
  • Spectra
  • Visible Spectra

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Electrical Engineering