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Electrochemical Preparation, Characterization, and Electrocatalytic Properties of OsPtCl 6 Film Electrodes Towards Reduction of NAD + , Chloroacetic Acids, and Nitrous Oxide
Author(s) -
Chen ShenMing,
Li ShehHung,
Thangamuthu R.
Publication year - 2009
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.200804569
Subject(s) - cyclic voltammetry , electrochemistry , inorganic chemistry , quartz crystal microbalance , electrode , electrocatalyst , platinum , oxide , chemistry , materials science , catalysis , organic chemistry , adsorption
Stable electroactive mixed films of osmium oxide/hexachloroplatinate, osmium oxide and platinum have been deposited on different electrode materials by cycling the electrode potential repetitively in solution containing Os 3+ and PtCl $\rm{ {_{6}^{2-}}}$ . The film growth of was monitored by using cyclic voltammetry and electrochemical quartz crystal microbalance (EQCM). The cyclic voltammetric features of modified electrode in Os 3+ solution resembles that of surface wave, and involves ions‐exchange with Os 3+ ions present in the solution. Based on the SEM results the modifier was considered as one‐dimensional, mixed‐valent polymeric film, and stabilized by Os 3+/2+ counter ions. Finally, the electrocatalytic activity of the modified electrode was examined toward reduction of NAD + , chloroacetic acids and nitrous oxide.