ELECTROOXIDATION OF HYDRAZINE ON ELECTRODES MODIFIED WITH VITAMIN-B-12

Authors
ZAGAL JH PAEZ MA
Citation
Jh. Zagal et Ma. Paez, ELECTROOXIDATION OF HYDRAZINE ON ELECTRODES MODIFIED WITH VITAMIN-B-12, Electrochimica acta, 42(23-24), 1997, pp. 3477-3481
Citations number
52
Categorie Soggetti
Electrochemistry
Journal title
Electrochimica acta → ACNP
ISSN journal
00134686
Volume
42
Issue
23-24
Year of publication
1997
Pages
3477 - 3481
Database
ISI
SICI code
0013-4686(1997)42:23-24<3477:EOHOEM>2.0.ZU;2-7
Abstract
In this paper we report a kinetic study of the electro-oxidation of hy drazine catalyzed by vitamin B-12 pre-adsorbed on an ordinary pyrolyti c graphite electrode. Kinetic parameters Were determined by linear swe ep voltammetry and rotating-disk electrode polarization curves. The or der of the reaction is 1 in OH- ions and Tafel plots give slopes of 80 mV/decade. A possible redox-catalysis mechanistic scheme is proposed.