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oe1(光电查) - 科学论文

2 条数据
?? 中文（中国） ▾

  • A novel strategy to modify the surface of plasma electrolysis produced inorganic coatings for fabricating organic@functional binding agents@inorganic materials

    摘要： Organic@functional binding agents(FBAs)@inorganic materials are fabricated using two efficient methods. For this purpose, inorganic layer containing organically magnesium aluminate loaded with metal hydroxide, namely (Mg(OH)2 or/and Ni(OH)2), and 2-mercaptobenzimidazole (MBI) were produced on Mg-3%Al-1%Zn alloy via plasma electrolysis (PE) method and then two-step dip chemical coating (DCC) method. The presence of metal hydroxides resulted in a decrease in the porosity and microcracks and an increase in strong bonds between organic and inorganic coating. Thus, it was found that the hybrid 2-mercaptobenzimidazole and metal hydroxides materials act good corrosion inhibitors for magnesium corrosion in aqueous solutions.

    关键词： Hybrid materials,Dip chemical coating,2-Mercaptobenzimidazole,Organic coating

    更新于2025-09-10 09:29:36

  • Preparation of Ag2Se QDs with excellent aqueous dispersion stability by organic coating with aqueous ATRP

    摘要： In this article, water-dispersible Ag2Se quantum dots (QDs) were prepared by the facile and environmental-friendly method. In our approach, atom transfer radical polymerization (ATRP) was adopted in aqueous media to grow polymer chains from the surface of Ag2Se QDs. The aqueous ATRP allows the very mild synthetic conditions. In the present work, the polymerization reaction of methoxy[oligo(ethylene glycol)] methacrylate (OEGMA) was carried out at room temperature under aqueous conditions after the incorporation of 2-bromopropionyl moiety as the ATRP initiator on the surface of Ag2Se QDs by the ligand exchange method. OEGMA-coated Ag2Se QDs were successfully obtained without significant morphological change. The aqueous dispersion stability of OEGMA-coated Ag2Se QDs was compared with that of conventional water-dispersible Ag2Se QDs prepared by the simple modification with 11-mercaptoundecanoic acid. As a result, OEGMA-coated Ag2Se QDs showed the extremely high aqueous dispersion stability.

    关键词： Aqueous dispersion stability,Methoxy[oligo(ethylene glycol)] methacrylate,Ag2Se quantum dot,Organic coating,Aqueous atom transfer radical polymerization

    更新于2025-09-04 15:30:14