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Efficient Graphene/Cyclodextrin-Based Nanocontainer: Synthesis and Host-Guest Inclusion for Self-Healing Anticorrosion Application
Liu, Chengbao; Zhao, Haichao; Hou, Peimin; Qian, Bei; Wang, Xiao; Guo, Chunyan; Wang, Liping
2018
发表期刊ACS APPLIED MATERIALS & INTERFACES
卷号10期号:42页码:36229-36239
摘要Cyclodextrin, with a hydrophobic inner cavity and a hydrophilic exterior, is often used to encapsulate a widest range of guest molecules based on host-guest inclusion interactions. Graphene, an emerging nanobuilding material, exhibits great potential for numerous applications because of its superior characteristics. Herein, we synthesized a novel graphene/beta-cyclodextrin-based supramolecular nanocontainer with excellent inhibitor encapsulating capacity and high impermeable properties. The benzotriazole (BTA)-loaded nanocontainers were then used to endow coating system with excellent passive and active anticorrosion performance. Local electrochemical impedance spectroscopy (LEIS) was performed to characterize the self-healing behavior of composite coatings. Results indicated that the protective capability of the scratched coatings can be recovered through BTA release from containers. Furthermore, the long-term corrosion resistance of container-based coating was largely improved as observed from EIS. The effective healing process involves two conditions: (1) the release of BTA from containers and formation of adsorption layers on exposed metal surfaces and (2) the impermeable graphene nanosheets greatly impeded the electrolyte penetration and corrosion extension around the scratch. This novel graphene/beta-cyclodextrin-based nanocontainer endows polymer coating with efficient self-healing functionality and durable anticorrosion property.
关键词Cyclodextrin-functionalized Graphene Corrosion Protection Beta-cyclodextrin Graphite Oxide Epoxy Composite Carbon-steel Linseed Oil Mg Alloy Coatings Nanosheets
学科领域Materials Science ; Physics
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17113
专题2018专题
推荐引用方式
GB/T 7714
Liu, Chengbao,Zhao, Haichao,Hou, Peimin,et al. Efficient Graphene/Cyclodextrin-Based Nanocontainer: Synthesis and Host-Guest Inclusion for Self-Healing Anticorrosion Application[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(42):36229-36239.
APA Liu, Chengbao.,Zhao, Haichao.,Hou, Peimin.,Qian, Bei.,Wang, Xiao.,...&Wang, Liping.(2018).Efficient Graphene/Cyclodextrin-Based Nanocontainer: Synthesis and Host-Guest Inclusion for Self-Healing Anticorrosion Application.ACS APPLIED MATERIALS & INTERFACES,10(42),36229-36239.
MLA Liu, Chengbao,et al."Efficient Graphene/Cyclodextrin-Based Nanocontainer: Synthesis and Host-Guest Inclusion for Self-Healing Anticorrosion Application".ACS APPLIED MATERIALS & INTERFACES 10.42(2018):36229-36239.
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