上海大学2015仪器分析..doc

上海大学 2015-2016 学年 秋 季学期研究生课程考试 小论文 课程名称： 高等仪器分析 课程编号： 11S009002 论文题目: TEM在core-shell介孔分子筛合成方面的应用 研究生姓名: 黄 乐 学 号: 论文评语: 成 绩: 任课教师: 张剑秋 评阅日期: TEM在core-shell介孔分子筛合成方面的应用 黄乐 （上海大学 环境与化学工程学院，上海200444） 摘要：TEM；Core-shell；Application of TEM in synthesis of core-shell mesoporous zeolite Huang Le (School of Environmental and chemical engineering, Shanghai University, Shanghai 200444, China) Abstract: Mesoporous molecular sieves are also known as mesoporous zeolites, which have important applications in catalysis, adsorption, and advanced functional materials, and applications of mesoporous zeolites are well known in catalysis. The Core-shell structure of the zeolite is a kind of zeolite covered a layer of egg shell on the surface , and there is a cavity between the core and the shell, which can increase the adsorption catalytic ability and improve the catalytic efficiency, so that it can be used more widely. About this kind of zeolite, because it is involved in the detection of nano scale, so when it needs characterization , in general, XRD, SEM, TEM , nitrogen adsorption desorption instrument and some of the instruments will be used. In addition,we requires a understanding of the internal structure of the zeolite, the lattice, the grid, and in general it will use SEM to observe,when needing higher resolution requirements,TEM will be chosen to observe its morphology structure. When it is necessary to understand the fine structure and the size of the zeolite, the high resolution transmission electron microscopy is a powerful tool to study the local and the structure of the defects. Key words: TEM；Core-shell；1 前言 多孔分子筛材料,由于其空旷的骨架巨大的比表面积以及规整可调的孔结构,在催化、吸附、分离等领域已经得到了非常广泛的应用,同时也为人类创造了巨大的经济效益。功能性设计是促进材料科学领域不断发展的驱动力。复合材料是一类将具有不同功能或孔道结构的不同组分在不同空间上均匀、可控分布的功能性材料。 2 TEM在Core-shel