Electrochemical Response of Cobalt(II) in the Presence of Ammonia | Zendy

Ji Xiaobo | Zendy; Buzzeo Marisa C. | Zendy; Banks Craig E. | Zendy; Compton Richard G. | Zendy

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Electrochemical Response of Cobalt(II) in the Presence of Ammonia

Author(s) -

Ji Xiaobo,

Buzzeo Marisa C.,

Banks Craig E.,

Compton Richard G.

Publication year - 2006

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.200503361

Subject(s) - pyrolytic carbon , electrochemistry , cobalt , cyclic voltammetry , aqueous solution , inorganic chemistry , ammonia , highly oriented pyrolytic graphite , graphite , electrode , chemistry , redox , diamond , materials science , organic chemistry , pyrolysis

The electrochemical oxidation of cobalt(II) at gold, boron‐doped diamond, basal and edge plane pyrolytic graphite, and highly oriented pyrolytic graphite electrodes in aqueous solutions containing NH 3 has been studied using cyclic voltammetry, with subsequent chemical and electrochemical processes explained in detail. Furthermore, the electro‐reduction of [Co(NH 3 ) 6 ] 3+ in the presence of different electrolytes has also been studied to obtain a better understanding of the oxidation pathway of the Co(II)‐ammine complexes. In aqueous solution the mechanism can be described by the following scheme:

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