CEMENTATION OF NI2-SOLUTIONS ONTO A ROTATING ZINC DISC( IONS FROM ACIDIC SULFATE)

Authors
MAKHLOUFI L SAIDANI B CACHET C WIART R
Citation
L. Makhloufi et al., CEMENTATION OF NI2-SOLUTIONS ONTO A ROTATING ZINC DISC( IONS FROM ACIDIC SULFATE), Electrochimica acta, 43(21-22), 1998, pp. 3159-3164
Citations number
20
Categorie Soggetti
Electrochemistry
Journal title
Electrochimica acta → ACNP
ISSN journal
00134686
Volume
43
Issue
21-22
Year of publication
1998
Pages
3159 - 3164
Database
ISI
SICI code
0013-4686(1998)43:21-22<3159:CONOAR>2.0.ZU;2-3
Abstract
During cementation of Ni2+ ions onto a zinc electrode, the time-depend ence of the concentration of Ni2+ ions was studied by atomic absorptio n spectroscopy. The electrode surface was analyzed by S.E.M. and the s urface area was measured by electrochemical impedance spectroscopy. Th e cementation is shown to be a first-order reaction which is diffusion -controlled The reaction rate is strongly affected by the increase in the electrode surface area with increasing cementation time. (C) 1998 Elsevier Science Ltd. All rights reserved.