TY - JOUR
T1 - Adsorption and oxidation of glycine on Au electrode
T2 - An in situ surface-enhanced infrared study
AU - Chen, Li Chia
AU - Uchida, Taro
AU - Chang, Hsien Chang
AU - Osawa, Masatoshi
N1 - Funding Information:
This work was supported by the Multidisciplinary Center of Excellence for Clinical Trial and Research ( DOH102-TD-B-111-002 ), Department of Health, Executive Yuan, Taiwan and also by JSPS KAKENHI Grant Number 24550143 . LCC acknowledges a scholarship from the Summer Program supported by National Science Council, Taiwan and Interchange Association, Japan.
PY - 2013
Y1 - 2013
N2 - The adsorption and oxidation of glycine on Au surface are studied by cyclic voltammetry coupled with in situ surface-enhanced infrared spectroscopy. The infrared spectra definitely indicate that glycine is adsorbed on the electrode with two oxygen atoms directing the Cα-C bond perpendicular to the surface. During glycine oxidation, cyanide is formed and oxidized to cyanate at high potentials. It is also shown that ureylene biradical species (deprotpnated urea) bonded to the surface via two nitrogen atoms is formed on oxidized Au surface. Combining experimental results reported in the literature, the mechanism of glycine electrooxidation is discussed.
AB - The adsorption and oxidation of glycine on Au surface are studied by cyclic voltammetry coupled with in situ surface-enhanced infrared spectroscopy. The infrared spectra definitely indicate that glycine is adsorbed on the electrode with two oxygen atoms directing the Cα-C bond perpendicular to the surface. During glycine oxidation, cyanide is formed and oxidized to cyanate at high potentials. It is also shown that ureylene biradical species (deprotpnated urea) bonded to the surface via two nitrogen atoms is formed on oxidized Au surface. Combining experimental results reported in the literature, the mechanism of glycine electrooxidation is discussed.
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U2 - 10.1016/j.elecom.2013.05.016
DO - 10.1016/j.elecom.2013.05.016
M3 - Article
AN - SCOPUS:84879046002
SN - 1388-2481
VL - 34
SP - 56
EP - 59
JO - Electrochemistry Communications
JF - Electrochemistry Communications
ER -