V R Vijayaraghavan
Articles written in Journal of Chemical Sciences
Volume 112 Issue 5 October 2000 pp 507-514
Kinetics of oxidation of nickel(II) aza macrocycles by peroxydisulphate in aqueous media
The kinetics of the oxidation of nickel (II) hexaaza and nickel (II) pentaaza macrocycles by the peroxydisulphate anion, S2O82−, were studied in aqueous media. Effect of pH on reaction rate was also studied. The rate increases with increase of S2O82− concentration. Rates are almost independent of acid between
Volume 113 Issue 4 August 2001 pp 343-350
Reduction of CO2 by nickel (II) macrocycle catalyst at HMDE
M Aulice Scibioh P V Ragini S Rani V R Vijayaraghavan B Viswanathan
With the aim of finding a suitable electrocatalyst for the efficient reduction of carbon dioxide, the electrochemistry of nickel (II) complex of 1,3,6,9,11,14-hexaazatricyclo [12·2·1·1] octadecane was studied using cyclic voltammetry (CV) and controlled-potential electrolysis (CPE) techniques in the presence and absence of CO2 in 100% H2O, CH3CN-H2O mixtures (20–100%) and DMF-H2O (70–100%) mixtures. The efficiency of this process is determined using the coulometry technique. CO is the major product in the gaseous phase and HCOOH the sole product formed in the solution phase.
Volume 116 Issue 2 March 2004 pp 107-113
K Joseph Antony Raj V R Vijayaraghavan
Large pore aluminophosphate-based molecular sieves like AlPO4-5, MAPO-5, MnAPO-5 and ZAPO-5 were synthesised hydrothermally using triethylamine as a structure directing agent. These materials were characterised by X-ray diffraction (XRD),27A1 and31P MAS-NMR, ICP-MS,
Volume 135, 2023
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