Abstract
In recent years,graphene has been widely employed in the field of metal corrosion protection owing to its outstanding impermeability and chemical stability,with examples of such metal protection including pure graphene coatings and graphene-based composite coatings.But the conductive graphene could pro-mote the electrochemical reaction at the interface and accelerate the corrosion of metal substrates.More emerging graphene-like 2D nanosheets are attracting research attention for the application of metal anti-corrosion,because of their barrier properties and poor conductivity,mainly including boron nitride(BN),molybdenum disulfide(MoS2),zirconium phosphate(ZrP),and titanium carbide(MXene).In this review,the application of these graphene-like 2D nanosheets to metal protection is comprehensively reviewed.First,the general preparation methods of 2D nanosheets are briefly introduced.Second,surface func-tionalization of 2D nanosheets,including covalent and non-covalent modification,is described in detail.Third,the anticorrosion performance and optimization measures of pure 2D nanosheets coatings are sum-marized.Next,the protection performance,anticorrosive mechanism,and optimizations of 2D nanosheets composite coatings are presented.Finally,the future development of 2D nanosheets-based anticorrosive coatings has been prospected,and the challenges in the industrial application are discussed.
基金项目
国家自然科学基金(51973231)
Guangdong Basic and Applied Basic Research Foundation(2021A1515012449)
Guangdong Basic and Applied Basic Research Foundation(2019A1515010743)
Fundamental Research Funds for the Central Universities,Sun Yatsen University(201gzd17)
Open Project from State Key Laboratory of Inorganic Synthesis and Preparative Chemistry(2020-31)
NETL
NSTL
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