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Surface functionalisation by the introduction of self-healing properties into electroless Ni-P coatings

Stankiewicz, Alicja; Kefallinou, Zoi; Mordarski, Grzegorz; Jagoda, Zofia; Spencer, Ben


Alicja Stankiewicz

Zoi Kefallinou

Grzegorz Mordarski

Zofia Jagoda

Ben Spencer


Ni-P∖alginate microgels coatings, as potential metallic protective coatings with self-healing properties, were deposited by the electroless method. The alginate microgels contained nickel chloride and sodium hypophosphite. It was proven that the reduction of nickel ions released from the microgels is possible on the steel and Ni-P coating surface. The self-healing effect of this system was studied by X-ray fluorescence (XRF), chronoamperometry and scanning vibrating electrode technique (SVET). An improved corrosion protection observed here is attributed to the reduction of nickel ions to metallic nickel on the tested surfaces. Differences in the surface concentration of nickel and phosphorous species in the corrosion tested coatings with and without microgels, as evaluated using X-ray Photoelectron Spectroscopy (XPS), provided substantial evidence for the formation of a Ni-P coating from the compounds included in the microgel

Journal Article Type Article
Acceptance Date Dec 3, 2018
Online Publication Date Dec 4, 2018
Publication Date Feb 20, 2019
Deposit Date Feb 11, 2019
Publicly Available Date Feb 11, 2019
Journal Electrochimica Acta
Print ISSN 0013-4686
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 297
Pages 427-434
Keywords Electrochemistry; General Chemical Engineering
Public URL
Contract Date Feb 11, 2019


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