Showing papers by "Prashant V. Kamat published in 1978"
15 citations
01 Jan 1978
TL;DR: In this article, the performance in direct sunlight of a photoelectrochemical cell employing n-type TiO2 film as the photoanode, a graphite rod as the cathode and air saturated NaOH as the electrolyte has been studied.
Abstract: The performance in direct sunlight of a photoelectrochemical cell employing n-type TiO2 film as the photoanode, a graphite rod as the cathode and air saturated NaOH as the electrolyte has been studied. Over a period of several days its output was found to remain stable, depending only on the intensity of incident sunlight, and therewas no measurable chemical change in the electrolyte or the electrode. The power conversion efficiency was found to be a maximum at 1/5th the maximum incident sunlight intensity (110 mW cm–2 total). One of the possible causes of reduced efficiency at higher intensities is inferred to be the slowness of the cathodic reaction. It has been shown that energy storage, both internally (in a suitable redox system) and externally (in conventional lead-acid accumulator) is feasible.