溶剂热合成氮化硼纳米晶过程中氮源种类的影响  

Effects of Nitrogen Source on the Boron Nitride Nanocrystals Prepared by Solvothermal Synthesis Route

作　　者：房伟[1] 郝霄鹏[1] 杨永亮[1] 崔得良[1] 

机构地区：[1]山东大学晶体材料国家重点实验室,济南250100

出　　处：《人工晶体学报》2006年第3期481-483,487,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.50272036;No.20473048;No.90206042);教育部科学技术研究重大项目;重点项目;博士点基金资助项目

摘　　要：以NaNH2和BC l3为原料,利用溶剂热方法合成了六方氮化硼纳米微晶,并用红外吸收光谱(FTIR)、X射线粉末衍射(XRD)方法分析了微粒的结构,利用透射电子显微镜(TEM)观测了BN微粒的粒度和微观形貌。与早期用L i3N为氮源合成的氮化硼(产物中具有较多纳米棒)相比,本文中制备的氮化硼纳米晶主要呈球形,颗粒粒度明显增大,而且产率有较大幅度的提高。Hexagonal boron nitride nanocrystals were prepared by reacting NaNH2 and BCl3 in the benzene thermal solutions. The samples were characterized by infrared absorption spectrum （FTIR）, X-ray diffraction （XRD） and transmission electron microscope （TEM）. Compared with the BN nanocrystals prepared by using Li3N as the nitrogen source, the BN nanocrystals synthesized by using NaNH2 as the nitrogen source have a larger particle size, and the nanoparticles are in spherical shape. Besides, the yield of the sample increased obviously.

关 键 词：氮化硼 溶剂热方法 纳米微晶 

分 类 号：O782[理学—晶体学]