Premium
The Interaction of Iodide Film with Platinum Microparticles on Different Electrode Materials for Various Electrocatalytic Reactions
Author(s) -
Su BuoWei,
Thiagarajan Soundappan,
Chen ShenMing
Publication year - 2008
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.200804275
Subject(s) - cyclic voltammetry , electrode , electrochemistry , indium tin oxide , materials science , scanning electron microscope , glassy carbon , platinum , electrocatalyst , inorganic chemistry , iodide , electrolyte , supporting electrolyte , analytical chemistry (journal) , nuclear chemistry , chemical engineering , chemistry , nanotechnology , thin film , catalysis , chromatography , composite material , engineering , biochemistry
The electrochemical depositions of Pt microparticles and KI film were successfully carried out on glassy carbon electrodes (GCE), gold electrodes (GE), and indium tin oxide electrodes (ITO). The electrochemical studies of Pt micro/KI film on GCE show that the film was stable, active at pH 1.5 electrolyte solutions. The Pt microparticle/KI film modified ITO electrodes were examined by using scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques. The SEM and AFM results show that the Pt particle sizes were in the range of 120 nm–1.4 μm, respectively. The proposed film on GCE shows efficient electrocatalysis for oxygen, Cr 2 O $\rm{ {_{7}^{2-}}}$ reduction by using cyclic voltammetry. Further the electrochemical oxidation of sodium meta ‐arsenite (As(III)), H 2 O 2 were successfully carried out and the detection of H 2 O 2 in real samples has been validated.