Question

翻译摘要！急！！哪一位高手来指点一下迷津呀

纳米材料作为纳米科学的一个重要研究发展方向，近年来已经成为材料科学研究的热点，纳米材料是当今新材料研究领域中最富有活力、对未来经济和社会发展有着十分重要影响的研究对象之一，也是纳米科技中最为活跃、最接近应用的重要组成部分。本文研究制备了两种目前比较热点的无机纳米材料—二氧化硅和四氧化三铁，通过多种控制手段和方法，可以得到不同粒径的纳米材料，并对二氧化硅和四氧化三铁的复合材料作了初步的研究。
本文用化学共沉淀法制备了纳米四氧化三铁颗粒，选用氨水作为沉淀剂，加入到Fe2+和Fe3+溶液中，制得了磁性四氧化三铁粒子。加入了少量柠檬酸（1.-2），得到分散良好的四氧化三铁颗粒。并通过投射电镜和XRD谱图进行表征，证明由该法所制得的四氧化三铁粒子成球形，分散良好，色泽黝黑。其次，用微乳法制备了不同粒径的分散性较好的核壳四氧化三铁/二氧化硅复合材料。通过一些平行实验，摸索出影响纳米二氧化硅粒径的实验条件，制备出不同粒径的二氧化四氧化三铁核壳复合材料硅。考察了在其他条件不变的条件下，复合纳米粒子的粒径随着正硅酸乙酯的使用量的增大而增大。

Answer 1

Nano-materials as nano-science research and development as an important direction of scientific research in recent years has become a hot materials, nano-materials is the study of new materials of the most dynamic in the future economic and social development has a very important study on the impact of one of It is also the most active in nanotechnology, the closest an important part of the application. Preparation of this paper compared the two current hot spots of the inorganic nano materials - silica oxide and four iron, through various means and methods of control, can be of different size nano-materials, and silicon dioxide and iron oxide IV composite material made of a preliminary study.
In this paper, prepared by chemical coprecipitation of iron oxide nano-particles four selected ammonia as the precipitating agent, added to the Fe2 + and Fe3 + solution, the system had four magnetic iron oxide particles. By adding a small amount of citric acid (1.-2), has been a good four-dispersed iron oxide particles. Through the projection electron microscope and were characterized by XRD spectra proved that the method obtained by the four iron oxide particles into a spherical, well dispersed, dark color. Secondly, microemulsion prepared with different particle size and better dispersion of the four core-shell iron oxide / silica composite materials. Through a number of parallel experiments, and explore the impact of nano-silica particle size of the experimental conditions, was prepared by four different size dioxide iron oxide core-shell composite silicon. Other conditions studied in the same conditions, the size of composite nanoparticles with TEOS usage increases.

Answer 2

The Na rice material is a Na rice an important research of science develop a direction and have already become material science research in recent years of a little bit hot, the Na rice material is a new material nowadays study in the realm most full of vitality, have one of the research object of very important influence to the future economic and social development, is also a Na rice science and technology in most for stimulate, the importance approaching an application most constitute part.This text research's making currently 2 kinds is a little bit hotter of have no machine Na rice material-two oxidize Huo and four oxidize three irons, pass various Nas rice that control meanses and method can get different grain path material, and to two oxidize Huo and four oxidized the compound materials of three irons to make an initial research.
This text was used chemistry to totally precipitate legal system to have a Na rice four oxidize three iron grains, choose ammonia water as to precipitate, join to Fe 2+ and the Fe 3+ aquas in, can make magnetism four oxidize three sons.Joined a little amount citric acid(1.-2), get dispersion good of four oxidize three iron grains.Also pass to project electricity mirror and XRD to compose diagram to carry on token, prove from that method make of four oxidize three sons to become spheroid, scatter good, the color and luster You is black.Use the dispersion better pit hull that the tiny milk legal system had different grain path secondly four oxidize three irons|two oxidize the material of Huo compound.Pass some parallel experiments, grope for an influence Na rice two oxidize Huo grain path of experiment condition, make a different grain path of two oxidize four to oxidize three iron pit hulls compound material Huo.Investigated in other conditions and reunite the grain path of Na grain of rice son along with the aggrandizement but aggrandizement of the dosage of positive Huo sour B ester under the constant condition.