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Electrochemical Testing and Structural Characterisation of Nickel Based Catalytic Coatings Produced by Direct Spraying

Published online by Cambridge University Press:  15 February 2011

S.M.A. Sillitto
Affiliation:
CERAM Research, Queens Road, Penkhull, Stoke-on-Trent, Staffordshire, ST4 7LQ, UK Birchall Centre for Inorganic Chemistry and Materials, Science, Department of Chemistry, Keele University, Staffordshire, ST5 5BG, UK
N.J.E. Adkins
Affiliation:
CERAM Research, Queens Road, Penkhull, Stoke-on-Trent, Staffordshire, ST4 7LQ, UK
D.R. Hodgson
Affiliation:
ICI Chemicals and Polymers Limited, Castner Kellner, Runcorn, Cheshire, WA7 4JE, UK
E. Paul
Affiliation:
ICI Chemicals and Polymers Limited, Castner Kellner, Runcorn, Cheshire, WA7 4JE, UK
R.M. Ormerod
Affiliation:
Birchall Centre for Inorganic Chemistry and Materials, Science, Department of Chemistry, Keele University, Staffordshire, ST5 5BG, UK
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Abstract

In this paper a novel processing technique has been used to produce a range of low overpotential nickel based electrocatalytic coatings for use in the Chlor-alkali industry. These coatings include pure nickel as well as Raney nickel alloys, with particular focus upon the beneficial effects of molybdenum additions to Raney nickel.

Structural characterisation of all coatings has been carried out using X-ray diffraction for quantitative phase identification, backed up by optical and electron microscopy for analysis of phase distribution. Measurement of the coatings' electrochemical properties has been performed in fully functioning micro-pilot scale electrolysis cells.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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