Mechanism of photoelectrocatalytic dehydrogenation of 2-propanol on a polycrystalline ZnO photoelectrode

K, Ravindranathan Thampi and T, Varahala Reddy and V, Ramakrishnan and J.C , Kuriacose (1983) Mechanism of photoelectrocatalytic dehydrogenation of 2-propanol on a polycrystalline ZnO photoelectrode. Electrochimica Acta , 28 (12). pp. 1869-1874.

PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
554Kb

Official URL: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG0-44CYMF0-1X&_user=518931&_coverDate=12%2F31%2F1983&_alid=587048893&_rdoc=18&_fmt=full&_orig=search&_cdi=5240&_sort=d&_docanchor=&view=c&_ct=33&_acct=C000025838&_version=1&_urlVersion=0&_userid=

Abstract

The mechanism of photoelectrocatalytic dehydrogenation of 2-propanol on a ZnO photoelectrode is re-examined. The effect of gaseous atmosphere is studied. The change of pH due to the reaction is followed under different experimental conditions. The larger part of the dissolution of ZnO occurs in the dark itself due to the solubility of ZnO. The photodissolution is comparatively small. 2-Propanol inhibits the photocorrosion slightly. H2O2 is detected in the electrolyte irrespective of the presence of 2-propanol. An electron transfer process followed by a free radical mechanism for the formation of H2O2 is proposed and discussed.

Item Type:	Article
Subjects:	Science > Chemistry
ID Code:	844
Deposited By:	Prof Balasubramanian Viswanathan
Deposited On:	10 Jun 2007 10:57
Last Modified:	10 Jun 2007 10:57

Repository Staff Only: item control page