dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T15:29:26Z | |
dc.date.accessioned | 2022-10-05T16:54:05Z | |
dc.date.available | 2014-05-20T15:29:26Z | |
dc.date.available | 2022-10-05T16:54:05Z | |
dc.date.created | 2014-05-20T15:29:26Z | |
dc.date.issued | 1996-04-01 | |
dc.identifier | Analyst. Cambridge: Royal Soc Chemistry, v. 121, n. 4, p. 541-545, 1996. | |
dc.identifier | 0003-2654 | |
dc.identifier | http://hdl.handle.net/11449/39036 | |
dc.identifier | 10.1039/an9962100541 | |
dc.identifier | WOS:A1996UG29600031 | |
dc.identifier | 2797127887030838 | |
dc.identifier | 9165109840414837 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3910234 | |
dc.description.abstract | The electrochemical oxidation of cyanide in alkaline media was studied at different pH levels on SnO2 doped with Sb supported on titanium, at 25 degrees C, the electrooxidation of CN- at constant current follows a first-order rate law with a half life of t(1/2) = 35 min on SnO2-SbOx electrodes and t(1/2) = 69 min on SnO2-SbOx-RuO2 electrodes, in K2SO4(aq), pH 12, the reaction rate increases with the applied current and tends to reach a plateau when j > 20 mA cm(-2), In the pH range 10-13.5 the reaction rate diminishes as pH is increased owing to an increasing competition between CN- and OH- ions for the electrode surface. Addition of chloride to the solution does not alter the rate law but increases the reaction rate, A mechanism is proposed to explain the observed behaviour. | |
dc.language | eng | |
dc.publisher | Royal Soc Chemistry | |
dc.relation | Analyst | |
dc.relation | 3.864 | |
dc.relation | 1,249 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | cyanide electrooxidation | |
dc.subject | tin dioxide doped electrodes | |
dc.subject | kinetic study of cyanide oxidation | |
dc.title | Electrochemical decomposition of cyanides on tin dioxide electrodes in alkaline media | |
dc.type | Artigo | |