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关键词： 材料化学   晶体化学   课程建设  

摘要： 晶体学知识在材料化学课程中占有重要地位,以结晶化学为体系构成课程的理论框架,将种类众多、内容丰富的材料的组成、结构、性能,穿插在结晶化学的理论框架中.教学内容上以结晶化学为基础,将晶体学知识贯穿在全体系中;教学过程中以结晶化学为主线,基本概念和材料结构与性能有机地结合.这样的体系体现了学科间的交叉和渗透、基础理论和实际应用的结合.

关键词： 净化空气   涂料   新发现   金纳米颗粒   有机污染物   金子   材料化学   光作用   微小颗粒   南开大学  

摘要： 据报道,南开大学材料化学系的研究人员发现。金子的微小颗粒在阳光作用下能够分解有机污染物,起到净化空气的作用。这项新的发现,使金子有望加工成为新的去污产品。

关键词： SnO2 + co-porphyrin   thermal behavior   Sn-119 NMR   X-ray diffraction   sensing efficiency  

摘要： SnO2 and SnO2 + Co-porphyrin solids were prepared from SnCl4 in propanol and hydrolyzed to sol. Thermal behavior of samples obtained at 110 degrees C was studied in the 20-600 degrees C interval by thermal analysis coupled with mass spectrometry for identification of released species. The original samples maintain residual Sn-OR, Sn-OH and Sn-Cl groups up to 350 degrees C. The sample doped with 1% Co-porphyrin differs for a significant presence of residual Sn-Cl species, accounting for SnCl4 release in the 300-340 degrees C range. Sn-119 solid state NMR analysis reveals disordered SnO2 species in the sample heated at 250 degrees C and non-uniform SnO6 units in the SnO2 + Co-porphyrin sample at 110 degrees C, due to persistence of Sn-OR and Sn-OH groups. This complexity is lost at 250 degrees C. X-ray diffraction analysis confirms all these data. The sensing efficiency of these materials versus alcohols is ascribed to the presence of an open, incomplete SnO2 structure, which is more pronounced in the Co-porphyrin-doped sample. (c) 2007 Elsevier B.V. All rights reserved.

关键词： Adhesives  

摘要： Recent advances in the field of ophthalmology include adhesives for the treatment of surgical and trauma-induced ocular wounds. Employed as surgical adhesives for more than forty years, cyanoacrylate and fibrin currently approved as general surgical adhesives remain contraindicated for ophthalmic use. Researchers have developed new adhesive systems based on protein tissue solder and hydrogels to improve upon sutures, used in current practice. We have reviewed these new adhesives and found them to be efficacious in closing many ocular wound types. Based on our findings in the laboratory and those reported in the literature, we summarize current ophthalmic adhesive research, provide insight into the effects of molecular composition, structure, and functionality on adhesive performance, and suggest testing protocols for the design of an ideal ophthlamic adhesive.

关键词： 山西师范大学   山西师大   材料化学   研究所  

关键词： Point defects  

摘要： Electron microscopic study of crystal defects enables us not only to reveal various structural imperfections, but also to discover their formation mechanisms and to understand their effects on the properties of solid materials. This short article highlights some recent examples of defect investigation mainly performed at University of St Andrews, including defective pores in zeolite beta, defects in single-crystal-like icositetrahedra of zeolite analcime, point defects in perovskite-type materials and in a new C60 phase, and defects in carbon--MnO2 composites.

摘要： 一、专业英语教学在课程体系中的地位和意义大学英语教学要求中明确提出,大学英语课程体系不仅包括传统的面授课程,更应注重开发基于计算机/网络的大学英语课程.将综合英语类、语言技能类、语言应用类、语言文化类和专业英语类等必修课程和选修课程有机结合,形成一个完整的大学英语课程体系,以确保不同层次的学生在英语应用能力方面得到充分的训练和提高.重视英语教学最直接的、最主要的出发点是提高学生英语水平,满足国家、地方和学生未来发展的需要.具有以下两个层次的意义:

关键词： Materials science   Chemistry   Iron   Crystal structure   Ions  

摘要： A complex iron oxide has been made that has an unusual crystal structure suggesting that the oxide ions are surprisingly mobile. This finding could pave the way to other metal-oxide materials with useful properties.

关键词： 双语教学   实践教学   地方高校   材料化学  

摘要： 针对我校是地方高校,所在城市的材料及其加工业较发达的特点,所以我校材料化学专业要培养创新、应用型复合人才。本文介绍了双语教学在构建材料化学专业实践教学创新体系中的应用。

关键词： 国家重点实验室   南京工业大学   材料化学   国家科技部   化学工程   江苏省   负责人   科技厅  

摘要： 11月12日，江苏省科技厅有关负责人对外介绍：在国家科技部刚刚发的新建国家重点实验室名单中，江苏省3家“榜上有名”。此次“晋升”为国家重点实验室的包括：南京工业大学的“材料化学工程国家重点实验室”。