Studies On The Decoration And Application Of Carbon Nanotubes

At the end of last century, nano-technology as a new force suddenly rises.The scientists think it will cause a industrial revolution and provide a new technique foundation of development in information of 21st centuries science, life science, molecular biology, new material science, ecosystem the system and military field etc. Because it is a chance, the developed countries are increasing input on manpower and financial power for the competition in the field.Nanometer is a measure of geometry dimension, the length is billonth of a meter. It is happened in the zone between the microcosmic which is represented by atoms and molecules and the macro world which is delegated by humans' movement space, so it is a new field for the development of physics, chemistry, materials science, life sciences and info science and so on. Commonly, those material which the crystal sizds are less than 100 nanometers in one dimension are called nano-materials. This field,which is named 'mesoscopic physics' by scientists, differs from microcosm and macrocosm. But It is between microcosm and macrocosm . The mesoscopic physics has made great progress through 40 years development. Especially in recent ten years, it has been newly arisen science technique, namely , 'Nano-ST'.It is the conclusion of the deep understanding of the material world . It is also the embodiment of the researching and discussion of the microcosm and macrocosm. The realization of the 'mesoscopic physics' will lead the mankind to study and imitate the nature as the plants. Then all kinds of production which mankind need, was produced with the air, water, inorganic materials in the nature, such as foodstuff, fibre, all sorts of micro-robots, computers. Richard Fayman, a outsanding quantum physicist after Einstein, made a speech whose title was 'There is Plenty of Room at the Bottom' in the American annual symposium about physics in 1959. It is considered as resource of the thought of Nano-ST. In his speech, the prediction, 'as for my opinion,the principle of physics don'texceed the probility of produce something whith atoms one by one.' will be inreality.In this thesis,the author give full-scale introduction about the nanomaterial's structure and traits,the application in practice and the present progress in our country; expatiate the preparation of CNTs in detail; do some researching on the decoration of CNTs. The contents of the thesis is as follows:1 A chemical method of opening and decorating CNTs by PVA and put forward possible mechanism.2 Structure measurement of multi-wall carbon nanotubes after ball milling.The long CNTs has been shorted by commen ball milling and effect of time on CNTs has researched. The mechanism of cut has been analyzed.3 The research of adsorption of MnOa by CNTs ,the TEM micrograph of CNTs and mechanism were analyzed.4 The nano-bulk WS2 was synthesized by CVD with the carbon nanotubes as template and analyzed its appearance and mechanism ;also discuss its application in nano-ceramics.