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The deposition of mesoporous Ni/Co alloy using cetyltrimethylammonium bromide as the surfactant in the lyotropic liquid crystalline phase bath

The deposition of mesoporous Ni/Co alloy using cetyltrimethylammonium bromide as the surfactant in the lyotropic liquid crystalline phase bath
The deposition of mesoporous Ni/Co alloy using cetyltrimethylammonium bromide as the surfactant in the lyotropic liquid crystalline phase bath
The procedure for the electrodeposition of a mesoporous nickel/cobalt layer from a liquid crystalline plating bath based on the cheap, commercial surfactant, cetyltrimethylammonium bromide and an aqueous solution containing 0.84 M NiCl2 and 0.20 M CoCl2, has been investigated. The phase diagram for these mixtures is reported and it is shown that the H1 liquid crystalline phase has a high conductivity. The conditions for deposition have been established using cyclic voltammetry and potential step and deposits are characterised using scanning electron microscopy (SEM), electron diffraction analysis (EDX) and helium ion microscopy (HIM). Uniform thickness deposits with a Ni/Co ratio ?4/1 can be prepared and they have a high surface area; in 1 M NaOH Ni/Co alloy layers with a thickness of ?2 ?m can store ?1 C cm?2 in the Ni(OH)2/NiOOH couple. This charge may be cycled >20 times

1572-6657
232-236
Bartlett, Philip N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Pletcher, Derek
f22ebe69-b859-4a89-80b0-9e190e6f8f30
Esterle, Thomas
1a0761a7-bc42-4eb4-b167-62354d3de17e
John Low, C.T.
b457ae14-616a-4861-ad4c-b22dec658be6
Bartlett, Philip N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Pletcher, Derek
f22ebe69-b859-4a89-80b0-9e190e6f8f30
Esterle, Thomas
1a0761a7-bc42-4eb4-b167-62354d3de17e
John Low, C.T.
b457ae14-616a-4861-ad4c-b22dec658be6

Bartlett, Philip N., Pletcher, Derek, Esterle, Thomas and John Low, C.T. (2013) The deposition of mesoporous Ni/Co alloy using cetyltrimethylammonium bromide as the surfactant in the lyotropic liquid crystalline phase bath. Journal of Electroanalytical Chemistry, 688, 232-236. (doi:10.1016/j.jelechem.2012.08.017).

Record type: Article

Abstract

The procedure for the electrodeposition of a mesoporous nickel/cobalt layer from a liquid crystalline plating bath based on the cheap, commercial surfactant, cetyltrimethylammonium bromide and an aqueous solution containing 0.84 M NiCl2 and 0.20 M CoCl2, has been investigated. The phase diagram for these mixtures is reported and it is shown that the H1 liquid crystalline phase has a high conductivity. The conditions for deposition have been established using cyclic voltammetry and potential step and deposits are characterised using scanning electron microscopy (SEM), electron diffraction analysis (EDX) and helium ion microscopy (HIM). Uniform thickness deposits with a Ni/Co ratio ?4/1 can be prepared and they have a high surface area; in 1 M NaOH Ni/Co alloy layers with a thickness of ?2 ?m can store ?1 C cm?2 in the Ni(OH)2/NiOOH couple. This charge may be cycled >20 times

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More information

Published date: January 2013
Organisations: Electrochemistry, Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 364117
URI: http://eprints.soton.ac.uk/id/eprint/364117
ISSN: 1572-6657
PURE UUID: e5cb9e10-ce5c-4d54-9b2d-2eb4c39b74ee
ORCID for Philip N. Bartlett: ORCID iD orcid.org/0000-0002-7300-6900

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Date deposited: 04 Apr 2014 14:28
Last modified: 20 Jul 2019 01:22

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Contributors

Author: Derek Pletcher
Author: Thomas Esterle
Author: C.T. John Low

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