Surface poisoning during electrocatalytic monosaccharide oxidation reactions at gold electrodes in alkaline medium

2007 ◽  
Vol 9 (8) ◽  
pp. 1892-1898 ◽  
Author(s):  
Masato Tominaga ◽  
Makoto Nagashima ◽  
Katsuhiko Nishiyama ◽  
Isao Taniguchi
Keyword(s):  
Alkaline Medium ◽  
Gold Electrodes ◽  
Oxidation Reactions ◽  
Surface Poisoning

scholarly journals Cover Feature: Palladium/Stannic Oxide Interfacial Chemistry Promotes Hydrogen Oxidation Reactions in Alkaline Medium (ChemElectroChem 22/2020)

2020 ◽  
Vol 7 (22) ◽  
pp. 4505-4505
Author(s):  
Adewale K. Ipadeola ◽  
Patrick V. Mwonga ◽  
Sekar C. Ray ◽  
Rapela R. Maphanga ◽  
Kenneth I. Ozoemena
Keyword(s):  
Alkaline Medium ◽  
Hydrogen Oxidation ◽  
Stannic Oxide ◽  
Oxidation Reactions ◽  
Interfacial Chemistry

Electro-oxidation of -xylose on platinum and gold electrodes in alkaline medium

2004 ◽  
Vol 49 (9-10) ◽  
pp. 1535-1545
Author(s):  
A GOVERNO ◽  
L PROENCA ◽  
P PARPOT ◽  
M LOPES ◽  
I FONSECA
Keyword(s):  
Alkaline Medium ◽  
Gold Electrodes ◽  
Electro Oxidation

scholarly journals Oxidative Cleavage of β-Lactam Ring of Cephalosporins with Chloramine-T in Alkaline Medium: A Kinetic, Mechanistic, and Reactivity Study

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Anu Sukhdev ◽  
A. S. Manjunatha ◽  
Puttaswamy Puttaswamy
Keyword(s):  
Alkaline Medium ◽  
Activation Parameters ◽  
Oxidation Products ◽  
Oxidation Reactions ◽  
Mass Spectral ◽  
Dielectric Effect ◽  
Lactam Ring ◽  
Chloramine T ◽  
Reactivity Study ◽  
Reaction Constants

Cephalosporins are β-lactam antibiotics, and the important drugs of this group are cephalexin, cefadroxil and cephradine. In the present research, the kinetics and mechanism of oxidation of cephalexin (CEX), cefadroxil (CFL), and cephradine (CPD) with chloramine-T (CAT) in alkaline medium were investigated at 301 K. All the three oxidation reactions follow identical kinetics with a first-order dependence each on [CAT]o and [substrate]o. The reaction is catalyzed by hydroxide ions, and the order is found to be fractional. The dielectric effect is negative. Proton inventory studies in H2O-D2O mixtures with CEX as a probe have been made. Activation parameters and reaction constants have been evaluated. Oxidation products were identified by mass spectral analysis. An isokinetic relation was observed with β = 378 K, indicating that enthalpy factors control the rate. The rate increases in the following order: CPD > CFL > CEX. The proposed mechanism and the derived rate law are consistent with the observed kinetics.

Mechanistic study of the electrooxidation of ethylene glycol on gold and adatom-modified gold electrodes in alkaline medium

1990 ◽  
Vol 286 (1-2) ◽  
pp. 41-61 ◽  
Author(s):  
F. Kadirgan ◽  
E. Bouhier-Charbonnier ◽  
C. Lamy ◽  
J.M. Léger ◽  
B. Beden
Keyword(s):  
Ethylene Glycol ◽  
Alkaline Medium ◽  
Mechanistic Study ◽  
Gold Electrodes

Palladium/Stannic Oxide Interfacial Chemistry Promotes Hydrogen Oxidation Reactions in Alkaline Medium

2020 ◽  
Vol 7 (22) ◽  
pp. 4562-4571
Author(s):  
Adewale K. Ipadeola ◽  
Patrick V. Mwonga ◽  
Sekar C. Ray ◽  
Rapela R. Maphanga ◽  
Kenneth I. Ozoemena
Keyword(s):  
Alkaline Medium ◽  
Hydrogen Oxidation ◽  
Stannic Oxide ◽  
Oxidation Reactions ◽  
Interfacial Chemistry

Electro-oxidation of d-xylose on platinum and gold electrodes in alkaline medium

2004 ◽  
Vol 49 (9-10) ◽  
pp. 1535-1545 ◽  
Author(s):  
A.T. Governo ◽  
L. Proença ◽  
P. Parpot ◽  
M.I.S. Lopes ◽  
I.T.E. Fonseca
Keyword(s):  
Alkaline Medium ◽  
Gold Electrodes ◽  
Electro Oxidation
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