Photoelectrochemical reactions of sodium propionate over polycrystaline ZnO

Abstract: WE report here the photoelectrocatalytic reduction of carbon dioxide to form organic compounds such as formic acid, formaldeyde, methyl alcohol and methane, in the presence of photosensitive semiconductor powders suspended in water as catalysts. Photocatalytic reaction kinetics were elucidated by reference to the theory of charge transfer at photoexcited semiconductors.

Abstract: Neat glycerol was irradiated with beam of Ar atoms and ions produced by a Capillaritron gun operated at 5 KeV. The FAB spectrum produced changed markedly as the irradiation continued. Studies were made with irradiations lasting 12 minutes and 35 minutes. Both the absolute and relative intensities of the ions in the glycerol spectrum change, and new ions are formed. The glycerol sample after the irradiation contains clear crystals. The irradiated sample was subjected to negative chemical ionization analysis, which provided further evidence for the formation of radiation products from the glycerol and also evidence about the identities of the products. The major new products formed are

Abstract: : The principles and applications of semiconductor electrodes in photoelectrochemical (PEC) cells for carrying out useful chemical reactions are described. The factors in the design of efficient and stable systems and semiconductor particulate systems constructed on the basis of PEC cell principles are discussed. (Author)