Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 34, Pages 38638-38646Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c09309
Keywords
metal materials; anticorrosive coatings; coffee-ring effect; cation-metal interaction; cation-pi interaction
Funding
- National Science Fund for Outstanding Young Scholars [11722548]
- China Postdoctoral Science Foundation [2019M651462, 2018M642124]
- National Natural Science Foundation of China [U1932123, U1632135]
- Innovative research team of high-level local universities in Shanghai
- Open Project of State Key Laboratory of Advanced Special Steel
- Shanghai Key Laboratory of Advanced Ferrometallurgy
- Science and Technology Commission of Shanghai Municipality [19DZ2270200]
- Deepcomp7000 and ScGrid of Supercomputing Center
- Computer Network Information Center of Chinese Academy of Sciences
- Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund
- Shanghai Supercomputer Center of China
- High Performance Computing Platform of Shanghai University
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Metals are widely used, from daily life to modern industry. Great efforts have been made to protect the metals with various coatings. However, the well-known conventional electrochemical corrosion induced by cations and the ubiquitous nature of the coffee-ring effect make these processes very difficult. Here, a scheme by two bridges of cations and ethylenediamine (EDA) is proposed to overcome the coffee-ring effect and electrochemical corrosion and experimentally achieve uniform, anticorrosive, and antiabrasive coatings on metallic surfaces. Anticorrosive capability reaches about 26 times higher than that without cation-controlled coatings at 12 h in extremely acidic, high-temperature, and high-humidity conditions and still enhances to 2.7 times over a week. Antiabrasive capability also reaches 2.5 times. Theoretical calculations show that the suspended materials are uniformly adsorbed on the surface mediated by complexed cations through strong cation-metal and cation-pi interactions. Notably, the well-known conventional electrochemical corrosion induced by cations is avoided by EDA to control cations solubility in different coating processes. These findings provide a new efficient, cost-effective, facile, and scalable method to fabricate protective coatings on metallic materials and a methodology to study metallic nanostructures in solutions, benefitting practical applications including coatings, printing, dyeing, electrochemical protection, and biosensors.
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