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Chinese Journal of Chemical Engineering 2023年第8期60卷 212-227页

作者： Lingli Chen Yueting Shi Sijun Xu Junle Xiong Fang Gao Shengtao Zhang Hongru Li College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China Chongqing Kunding Environmental Protection Technology Co.LtdChongqing 400044China

In this study, an approach was proposed to employ new target branched compounds(TBCs) including multiple antibiotic norfloxacin frameworks for intensified adsorption films to achieve super protection of mild steel in HCl medium. Thus, the TBCs containing bis/tri norfloxacin skeletons were synthesized by multi-step preparation route. In addition, the reference linear compound(RLC) including a single norfloxacin part was also synthesized. The chemical structures of these compounds were confirmed by various means. It was demonstrated that the TBCs could form the tough adsorption films on the surface of mild steel, which could be processed mainly through chemisorption effect. The electrochemical analysis suggested that the TBCs displayed superior corrosion inhibition performance for low carbon steel in1.0 mol·L^(-1) HCl solution over the RLC(RLC, 87.80%;TBC1, 97.63%;TBC2, 98.35%), which was further understood by the molecular modelling. The isotherm adsorption plots were employed to analyze the spontaneous adsorption process of the TBCs on low carbon steel surface, and a prominent chemisorption could be inferred by the standard Gibbs free energy changes of the adsorption.

关键词： Branched compounds Norfloxacin part Adsorption anticorrosion Mild steel

A New Ceramic Substrate Glaze with High Resistance to Molten Aluminum

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Journal of Materials Science & Technology 2003年第5期19卷 505-506页

作者： Ming ZHOU, Ke LI, Da SHU, Jiao ZHANG, Baode SUN and Jun WANGState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200030, China State Key Laboratory of Metal Matrix Composites Shanghai Jiaotong University Shanghai 200030 China

Corrosion resistance of ceramic substrate glazes to molten aluminum was studied in this paper. The glazes can spread slightly in aluminum alloy according to SEM examination of solidified interface between the glazes and aluminum alloy. The components of B2O3-P2O5 glazes were not detected with electron probe at the side of aluminum alloy near the interface, but the components of boron-free glaze were detected. It is shown that borophosphate glazes can resist the corrosion of molten aluminum.

关键词： Glaze Molten aluminum anticorrosion Interface

ELECTROPOLYMERIZATION OF ANILINE ON ZINC-ELECTROPLATED STEEL FROM NEUTRAL AQUEOUS MEDIUM BY SINGLE-STEP PROCESS

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Acta Metallurgica Sinica(English Letters) 2004年第6期17卷 849-855页

作者： Y.P.Zhao R.H.Yin W.M.Cao A.B.Yuan Dept.ofChem. CollegeofScienceShanghaiUniv.Shanghai200436China

Polyaniline films were successfully synthesized on zinc-electroplated steel sheets in sodium salicylate (1mol·dm-3) aqueous medium. This one-step aniline electropolymerization process has been studied in this paper using different electrochemical techniques. And scanning electron microscopy (SEM) showed that the polymer coatings rapidly formed by either galvanostatic or potentiostatic mode performed compact and uniform in morphology. Potentiodynamic polarization was used to test the anticorrosion properties of this polymer.

关键词： anticorrosion electropolymerization polyaniline salicylate zinc

Effects of Ti and Co on the Electrochemical Characteristics of MgNi-Based Alloy Electrodes

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Chinese Journal of Chemistry 2007年第9期25卷 1278-1281页

作者：冯艳焦丽芳袁华堂赵明 institute of New Energy Material Chemistry Nankai University Tianjin 300071 China Tianjin Institute of Scientific & Technical Information Tianjin 300074 China

Mg-based hydrogen storage alloys MgNi, Mg0.9Ti0.1Ni and Mg0.9Ti0.1Ni0.9Co0.1 were successfully prepared by means of mechanical alloying （MA）. The structure and the electrochemical characteristics of these Mg-based materials were also studied. The results of X-ray diffraction （XRD） and scanning electron microscopy （SEM） show that the main phases of the alloys exhibit amorphous structures, and trace of Ni co-exists. The charge-discharge cycle tests indicate these alloys have good electrochemical active characteristics. And the cycle stability of Ti and Co doped alloy was better than that of MgNi alloy. After 50 cycle charge-discharge, the discharge capacity of the Mg0.9Ti0.1Ni0.9Co0.1 alloy was much better than that of MgNi and Mg0.9Ti0.1Ni alloys. The discharge capacity of Mg0.9Ti0.1Ni0.9Co0.1 was 102.8% higher than that of MgNi alloy, and 45.49% higher than that of the Mg0.9Ti0.1Ni alloy. During the process of charge-discharge cycle test, the main reason for the electrode capacity fading is the corrosion of Mg to Mg（OH）2 on the surface of alloys. The Tafel polarization test indicates Ti and Co improve the anticorrosion in an alkaline solution. The EIS results suggest that proper amount of Ti and Co doping improve the electrochemical catalytical activity on the Mg-based alloy surface significantly.

关键词： Mg-based hydrogen storage electrochemical characteristic cycle stability anticorrosion

Ionic conductive gels based on deep eutectic solvents

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International Journal of Smart and Nano Materials 2021年第3期12卷 337-350页

作者： Cuiping Liu Jinfan Qi Bingbing He Huan Zhang Jie Ju Xi Yao Key Laboratory for Special Functional Materials for Ministry of Education School of MaterialsHenan UniversityKaifengHenan ProvinceP.R.China

Ionic conductive gels are promising soft conductors for stretchable and flexible ***,the basic requirements for an ideal ionic conductive gel,including environmental and chemical stability as well as low toxicity and low cost do not usually coincide in one *** we report an ionic conductive gel containing deep eutectic solvents(DES),which are specialized ionic liquids composed of propylene glycol(PG,hydrogen bonding donor)and various *** experiments,the DES-gel loses about 10%of the original weight in dry air(5–9%relative humidity)for 7 days and its conductivity remains *** to regular salt-containing hydrogels,it exhibits exceptional resistance to metal *** demonstrate the advantage of DES-gels as the ionic electrode in a flexible and stretchable electroluminescent device,especially in cold environment(−20°C).Through this study,we discover a new candidate for cheap and safe soft ionic conductors with excellent environmental and chemical stability.

关键词： Ionic conductors deep eutectic solvents anticorrosion solvent-retention electroluminescence

Hydrophobic organic coating based water–solid TENG for water-flow energy collection and self-powered cathodic protection

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Frontiers of Materials Science 2021年第4期15卷 601-610页

作者： Yupeng LIU Guoyun SUN Ying LIU Weixiang SUN Daoai WANG State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Institute of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Qingdao Center of Resource Chemistry and New Materials Qingdao 266100China School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266100China

Water-solid triboelectric nanogenerators(TENGs),as new energy collection devices,have attracted increasing attention in ocean energy harvesting and selfpowered *** acid(PAA)coating,usually used on the surface of marine equipment,has the property of anti-aging and anti-wear but limits triboelectrical output when used with *** this paper,polyacrylic acid coating was modified with fluorinated polyacrylate resin(F-PAA)to increase its triboelectrical output,by 6 times,and also to increase its anti-corrosion *** addition,the corrosion resistance property can be further enhanced by cathodic protection using the electrical output generated by the water-flow triboelectrical energy transfer *** their easy fabrication,water-flow energy harvesting,and corrosion resistance,PAA/F-PAA coating-based TENGs have promising applications in river and ocean energy collection and corrosion protection.

关键词： TENG hydrophobic coating energy collection anticorrosion cathodic protection

Improving the Dispersibility of Poly(urea-formaldehyde) Microcapsules for Self-Healing Coatings Using Preparation Process

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Journal of Renewable Materials 2022年第1期10卷 135-148页

作者： Yuhao Jiang Jialan Yao Chengfei Zhu College of Materials Science and Engineering Nanjing Tech UniversityNanjing211816China

Poly(urea-formaldehyde)(PUF)microcapsules were prepared by in-situ polymerization with four different pro-cesses in this *** chemical composition,surface morphology,particle size distribution,and thermal sta-bility were characterized by FTIR,SEM,particle size analyzer,and TGA,*** results demonstrated that the agglomeration of the PUF microcapsules was related to the agglomeration of the emulsion particles caused by the changes of emulsion interface during the shell *** to the slow deposition of the shell material,the PUF microcapsules with the core-shell structure prepared by the process with ammonium chloride as the last additive showed good dispersibility with an average diameter of 6.36μm,high core content of 71.3 wt%,and high yield of 61.3 wt%.The PUF microcapsules had good thermal stability below 216?*** PUF microcapsules could be uniformly dispersed in the epoxy coating in a single *** epoxy coating with 2 wt%PUF microcapsules showed good self-healing property,and the service life of the coating was about doubled.

关键词： In-situ polymerization self-healing microcapsules anticorrosion dispersibility coatings

INHIBITION MECHANISM OF Na_2MoO_4 FOR CARBON STEEL IN 55% LiBr SOLUTION

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Chinese Journal of Mechanical Engineering 2007年第4期20卷 15-18页

作者： LIANG Chenghao HUANG Naibao GUO Jianwei HU Xianqi Electromechanics and Materials Engineering College Dalian Mantime University Dalian 116026 China School of Chemical Engineering Dalian University of Technology Dalian 116012 China Electromechanics and Materials Engineering College Dalian Maritime University Dalian 116026 Ch na nstitute of Nuclear and New Energy Technology Tsinghua University Beijing 100084 China

Electrochemical measurement and chemical immersion test are employed to investigate the inhibition mechanism of Na2MoO4 for carbon steel,which is studied in 55%LiBr＋0.07mol/L LiOH solution at high *** results indicate that the passive film on carbon steel surface is mainly composed of Fe3O4,and Mo is involved in the process of film forming,in a form of MoO3 and *** parametric analysis of the evolving potential and the blend potential of MoO2 shows that Mo mainly exists as MoO2 in passive film when the concentration of Na2MoO4 is lower than 150 mg/*** its concentration is greater than 150mg/L,it mainly exists as MoO3 inside the film and exists as MoO2 outside the ***4^2- is deoxidized as MoO2 on the surface of carbon steel,which may impede the corrosion of active-site and raise the blend potential of carbon steel,and then MoO4^2- adsorbs onto the defects of the passive film and decompounds as MoO3 during the process of film *** electric field caused by different valence of Mo in passive film may retard the dissolution of carbon steel and lead to an increase in the polarization impedance and a decrease in hydrogen *** a result,heavy concentrated Na2MoO4 solution（greater than 150mg/L）has excellent inhibition effect on carbon steel in LiBr solution.

关键词： LiBr solution Carbon steel anticorrosion Na2MoO4

Synthesis and Electrochemical Properties of a Novel Poly（ether sulfone） with Oligoaniline Pendants

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Chemical Research in Chinese Universities 2015年第6期31卷 1066-1071页

作者： LI Fangfei WANG Jiayu ZHOU Mingjuan LIU Xincai WANG Ce CHAO Danming State Key Laboratory of Superhard Materials Jilin University Changchun 130012 R R. China College of Chemistry Jilin University Changchun 130012 P. R. China

A novel poly（ether sulfone） with oligoaniline pendants（PESOP） was prepared by KaCO3-mediated nucleophilic polycondensation and characterized with Fourier-transform infrared spectrometry（FTIR）, 1H nuclear magnetic resonance（1H NMR） and gel permeation chromatography（GPC）. The cyclic voltammetry（CV） curve of PESOP reveals the reversible electroactivity. In the electrochromism study, PESOP film exhibited good electroch- romic properties with a high contrast value, moderate switching time and acceptable coloration efficiency. After running 1000 cycles, the PESOP/indium-tin oxide（ITO） electrochromic device remained unchanged except for the drifting of base line, which certified its good electro-photo stability of the fabricated electrochromic device. Moreover, the polarization technique and electrochemical impedance spectroscopy（EIS） were used to study the anticorrosion performance of PESOP coatings on the cold rolled steel（CRS） in a 5%（mass fraction） NaCI solution. All the results indicate that the obtained PESOP is a competitive candidate as anticorrosion material.

关键词： Electroactive Oligoaniline Electrochromism anticorrosion

Multi-fluorous-included Counter Anions-based Ionic Copolymers:Synthesis and Enhanced Hydrophobic Adsorption Films on Copper Surface for Super Protection

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Chemical Research in Chinese Universities 2023年第5期39卷 845-856页

作者： REN Weihua SHI Yueting CHEN Lingli YANG Song ZHANG Shengtao LIU Xiaohong REN Xiaolei LI Hongru College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044P.R.China Chongqing Youth Vocational&Technical College Chongqing 400712P.R.China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714P.R.China College of Environment and Resources Chongqing Technology and Business UniversityChongqing 401331P.R.China

Three multi-fluorous-carried anions-based ionic copolymers(ICs)including(fluorosulfonyl)imide(FSI-),(trifluorometha-nesulfonyl)imide(TFSI-)and hexafluorophosphate anions(PF6-)(IC[FSI-]),poly[1,1'-(butane-1,4-diyl)bis(3-pentyl-1H-imidazol-3-ium)bis(fluorosulfonyl)amide](IC[TFSI-]),poly{1,1'-(butane-1,4-diyl)bis(3-pentyl-1H-imidazol-3-ium)bis[(trifluoromethyl)sulfonyl]-amide}(IC[PF6-]),poly[1,1'-(butane-1,4-diyl)bis(3-pentyl-1H-imidazol-3-ium)bishexafluorophosphate]were synthesized with a simple ionic exchange method by using amphiphilic poly[1,1'-(butane-1,4-diyl)bis(3-pentyl-1H-imidazol-3-ium)bisbromide](IC[Br-])as the intermediate ionic *** chemical srutrcures of the target ICs were characterized by nuclear magnetic resonance(NMR)spectroscopy and Fourier-transform infrared spectroscopy(FTIR).It is shown that the target ICs could be spontaneously adsorbed on copper surface in N,N-dimethflormamide(DMF),and the tight adsorption films were formed on metal *** contacting angles suggest that the formed adsorption layers of target ICs on copper surface were characterized with hydrophobic ***,the target ICs-copper chemistry bonding was confirmed by various *** electrochemistry analysis showed that the target ICs adsorption layers could prevent from copper corrosion in H2SO4solution efficiently,and the maximal anticorrosion efficiency was over 95%at 0.100 g/*** particular,the target ICs showed 85%or above anticorrosion efficiency for copper at a low concentration of 0.025 g/L,which was greater than the intermediate polymer IC[Br-].In addition,an insight of mixed chemisorption and physisorption of the target ICs on metal surface was analyzed and discussed.

关键词： Hydrophobic adsorption film Ionic copolymer Multi-fluorous-included anion Copper anticorrosion