Nanocatalyst-mediated oxygen depletion in epoxy coating for active corrosion protection

Published on Dec 1, 2021in Chemical Engineering Journal10.652
· DOI :10.1016/J.CEJ.2021.131649
Meng Cheng4
Estimated H-index: 4
(China University of Petroleum),
Hao Jiang (China University of Petroleum)+ 3 AuthorsSongqing Hu15
Estimated H-index: 15
(China University of Petroleum)
#2Shaoqing Chen (Southern University of Science and Technology)H-Index: 10
Last. Hsing-Lin WangH-Index: 72
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The exploration of efficient oxygen reduction reaction (ORR) electrocatalysts with low-cost and facile process is crucial for the commercialization of fuel cells and metal–air batteries. Herein, we demonstrate a template-free strategy to synthesize N-doped porous carbon spheres (NPCS-X, X denotes the pyrolysis temperature) composed of nanosheets via pyrolysis of self-assembled urea formaldehyde (UF) resin as a single precursor. The resultant NPCS-900 exhibits an outstanding electrocatalytic acti...
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Abstract In this study, a plasma electrolytic oxidation (PEO) process was used to the immobilization of the reduced graphene oxide (rGO)/zinc oxide (ZnO) hybrid on the zinc substrate. The microstructural and compositional characteristics confirmed the successful formation of the rGO/ZnO hybrid composite coatings immobilized on the zinc substrate with crater-like surface morphology. By increasing the content of rGO nanosheets incorporation, the average surface roughness and porosity of the hybrid...
8 CitationsSource
#2Sema EbrahimiH-Index: 5
Last. Benyamin YarmandH-Index: 8
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Abstract Calcium phosphate-containing coatings were prepared on pure zinc substrate by an in-situ plasma electrolyte oxidation process in the electrolyte containing C4H6O4Ca and CaHPO4 additives for generation biodegradable implants. The polarization test and electrochemical impedance spectroscopy indicated excellent resistance properties of the outer porous and inner barrier layers for the coating with higher thickness prepared at optimum electrolyte concentration. In-vitro bioactivity evaluati...
9 CitationsSource
#1Maryam Akhondi (SBUK: Shahid Bahonar University of Kerman)H-Index: 1
#2Effat Jamalizadeh (SBUK: Shahid Bahonar University of Kerman)H-Index: 9
Abstract An effective pH-responsive halloysite with β-cyclodextrin shell was demonstrated to control the release of the inhibitor trapped in the halloysite channel. The effect of solution pH variation on the release behavior of nanocapsules was taken into account. The trapping mechanism by the β-CD molecules was investigated by quantum chemistry calculations. Commercial epoxy coating doped with various concentrations of benzotriazole-loaded containers showed a self-healing effect after 42 h of i...
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#1Adnan Khan (Center for Advanced Materials)H-Index: 3
#2Amani Hassanein (Center for Advanced Materials)H-Index: 1
Last. Ramazan Kahraman (Qatar University)H-Index: 24
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Novel hybrid halloysite nanotubes (HHNTs) were developed and used as smart carriers for corrosion protection of steel. For this purpose, as-received halloysite nanotubes (HNTs) were loaded with corrosion inhibitor, imidazole (IM), by vacuum encapsulation. In the next step, a layer by layer technique was employed to intercalate another inhibitor-dodecylamine (DDA) in the of polyelectrolyte multilayers of polyethylenimine (PEI), and sulfonated polyether ether ketone (SPEEK) leading to the formatio...
13 CitationsSource
#1Chaohai Wang (Nanjing University of Science and Technology)H-Index: 19
#2Jeonghun Kim (Kookmin University)H-Index: 49
Last. Yusuke Yamauchi (Kyung Hee University)H-Index: 120
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Summary In recent years, metal-organic framework (MOF)-derived carbon materials (CMs), known for their nanoporous structure yielding a high surface area and tunable chemical and physical properties, have drawn great interest in many fields of application, such as energy storage and conversion, environmental remediation, and catalysis. Despite the tremendous efforts involved in their development, several common drawbacks still persist during the carbonization process: (1) the intrinsic nature of ...
184 CitationsSource
#2Dirk Lützenkirchen-Hecht (University of Wuppertal)H-Index: 19
#3Longbin Li (NCU: Nanchang University)H-Index: 7
Last. Ullrich ScherfH-Index: 107
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Atomically dispersed transition metal active sites have emerged as one of the most important fields of study because they display promising performance in catalysis and have potential to serve as ideal models for fundamental understanding. How-ever, both the preparation and determination of such active sites remain a challenge. The structural engineering of carbon and nitrogen coordinated metal sites (M-N-C, M=Fe, Co, Ni, Mn, Cu, etc.) via employing new heteroatoms, e.g. P and S, remains challen...
173 CitationsSource
#1Zhi-Long Yu (NU: Northwestern University)H-Index: 17
#2Alane T. O. Lim (NU: Northwestern University)H-Index: 1
Last. Jiaxing Huang (NU: Northwestern University)H-Index: 82
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9 CitationsSource
#1Jian Yang (University of Electronic Science and Technology of China)H-Index: 20
#2Fei Xiang (University of Electronic Science and Technology of China)H-Index: 2
Last. Xiaobin Niu (University of Electronic Science and Technology of China)H-Index: 23
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Abstract It has been a major challenge to dispose the unrenewable high-performance polymers (HPPs) after their large-scale application in our society. Here we report an approach to reuse one kind of HPP as carbon and sulfur sources in synthesizing nitrogen and sulfur dual-doped honeycomb-like porous carbon catalysts for oxygen reduction reaction. Briefly, poly(phenylene sulfide sulfone) with S atoms in polymer chain as sulfur source, dicyandiamide as nitrogen source and SiO2 nanoparticles as har...
30 CitationsSource
#1Guangyuan TianH-Index: 2
#3Yan ZhaoH-Index: 1
Last. Hong YanH-Index: 13
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A simple, low-cost, fluorine-free, and ecofriendly method was applied to prepare a novel superhydrophobic Zn–Fe alloy coating on the surface of carbon steel. First of all, the Zn–Fe coating was obtained in an alkaline glycerol non-cyanide Zn–Fe plating solution. Then tetradecanoic acid was grafted onto the Zn–Fe coating by a coordination reaction, leading to a superhydrophobic surface. The water contact angle was up to 166° and the sliding angle was 4°. The as-prepared superhydrophobic coating e...
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