caa a22 4500 475816099 CHVBK 20180406123810.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1023/A:1003901500426 doi (NATIONALLICENCE)springer-10.1023/A:1003901500426 Electrodeposition and dissolution of Co-W alloy films [Elektronische Daten] [C.L. Aravinda, V.S. Muralidharan, S.M. Mayanna] Cyclic voltammetric studies were carried out on platinum in alkaline solution containing cobalt sulphate, sodium tungstate, dimethyl sulphoxide and triammonium citrate. Spectral u.v. absorption studies of cobalt citrate complex indicate the species to be [Co L (H2O)3]2+, where L is triammonium citrate. The deposition of cobalt involves a stepwise electron transfer mechanism. The observed cyclic voltammetric data show that the alloy deposition is possibly from cobalt-tungstate complex. The citrate ions and dimethyl sulphoxide hinder the alloy deposition. Dimethyl sulphoxide, which specifically adsorbs on the electrode surface, favours the hydrogen evolution reaction (HER), whereas tungstate hinders the HER. Stripping voltammograms show the existence of cobalt rich alloy phases. X-ray diffraction studies further confirm the phases to be Co3W and Co7W. Kluwer Academic Publishers, 2000 Co-W alloy film nationallicence cyclic voltammetry nationallicence intermetallic phases nationallicence u.v. absorption nationallicence XRD studies nationallicence Aravinda C.L. Department of Postgraduate Studies in Chemistry, Central College, Bangalore University, 560 001, Bangalore, India aut Muralidharan V.S. Central Electrochemical Research Institute, 630 006, Karaikudi, India aut Mayanna S.M. Department of Postgraduate Studies in Chemistry, Central College, Bangalore University, 560 001, Bangalore, India aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/5(2000-05-01), 601-606 0021-891X 30:5<601 2000 30 10800 https://doi.org/10.1023/A:1003901500426 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003901500426 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aravinda C.L. Department of Postgraduate Studies in Chemistry, Central College, Bangalore University, 560 001, Bangalore, India aut NATIONALLICENCE 700 1- Muralidharan V.S. Central Electrochemical Research Institute, 630 006, Karaikudi, India aut NATIONALLICENCE 700 1- Mayanna S.M. Department of Postgraduate Studies in Chemistry, Central College, Bangalore University, 560 001, Bangalore, India aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/5(2000-05-01), 601-606 0021-891X 30:5<601 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer