One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors

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dc.identifier.uri Liu, Yi Yu, Tongwen Cai, Rui Li, Yanshuo Yang, Weishen Caro, Jürgen 2015-12-08T13:08:06Z 2016-03-19T23:05:29Z 2015-03-19
dc.identifier.citation Liu, Yi; Yu, Tongwen; Cai, Rui; Li, Yanshuo; Yang, Weishen; Caro, Juergen: One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors. In: RSC Advances 5 (2015), Nr. 37, S. 29552-29557. DOI:
dc.description.abstract Anti-corrosive coatings based on layered double hydroxides (LDHs) have been considered as promising alternatives to conventional chromate-containing conversion coatings. Among various LDHs, carbonate-intercalated LDH coatings with a c-axis preferred orientation should be the optimum structure for protecting metals against corrosion. Herein we successfully prepared NiAl–CO3 LDH coatings on aluminium plates in one step. Particularly it was found that CO2 dissolved in the precursor solution exerted great influence on the microstructure and anti-corrosion capacity of prepared LDH coatings. Trace amounts of CO2 in the precursor solution led to the formation of ab-oriented 7 μm-thick LDH coatings, while preferentially c-oriented LDH coatings with an average thickness of 12 μm were formed from CO2-saturated precursor solutions. A DC polarization test demonstrated that preferentially c-oriented LDH coatings exhibited much higher anti-corrosion performance than ab-oriented LDH coatings possibly due to the decreased density of mesoscopic defects. Simultaneously, CO2, the green gas, was also positively utilized. eng
dc.description.sponsorship Alexander von Humboldt Foundation
dc.description.sponsorship Natural Science Foundation of China/21176231
dc.description.sponsorship Natural Science Foundation of China/21361130018
dc.description.sponsorship Natural Science Foundation of China/ 21476223
dc.description.sponsorship CAS 100-talent program
dc.description.sponsorship GZ 911/Sino-German Cooperation Group on Inorganic Membranes
dc.language.iso eng eng
dc.publisher Cambridge : Royal Society of Chemistry
dc.relation.ispartofseries RSC Advances 5 (2015), Nr. 37
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
dc.subject layered double hydroxide eng
dc.subject chromate conversion coatings eng
dc.subject in-situ crystallization eng
dc.subject corrosion protection eng
dc.subject monolayer films eng
dc.subject anion-exchange eng
dc.subject mg alloy eng
dc.subject aluminum eng
dc.subject growth eng
dc.subject orientation eng
dc.subject.ddc 540 | Chemie ger
dc.title One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors eng
dc.type article
dc.type Text
dc.relation.issn 2046-2069
dc.bibliographicCitation.issue 37
dc.bibliographicCitation.volume 5
dc.bibliographicCitation.firstPage 29552
dc.bibliographicCitation.lastPage 29557
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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