乙烯光电催化氧化的研究—金属/n-GaP光阳极

本文用光电化学的方法,研究了催化氧化乙烯兼得氢燃料的可能性,还研究了以n-GaP半导体为基底的电极表面镀金属(Au、Ag、Pd)膜,既防止光腐蚀又催化乙烯氧化反应的规律性.考察了外加偏压、pH和溶剂等因素对反应的影响,并初步探讨了可能的反应机理.

A STUDY ON THE PHOTOELECTROCATALYTIC OXIDATION OF ETHENE: METAL/n-GaP PHOTOANODE

In the present paper, possibility to realize the double purposes of both catalytic oxidation of ethene to useful organic products and concurrent production of hydrogen fuel by means of photoelectrochemical method was investigated, as well as the functions of the metallic films (Au, Ag and Pd plated on the surface of n-GaP semiconductor electrode) in preventing photocorrosion of the electrodes and in catalytic oxidation of ethene.The effects of such factors, as applied bias, pH, solvent, and so on, on the anodic reactions have been studied.Possible mechanisms of the reactions have been tentatively discussed.