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甲醇介质中溶剂热合成六方CdS中空纳米球
引用本文:郑林林,冯守爱,高峰,朱珍平.甲醇介质中溶剂热合成六方CdS中空纳米球[J].无机材料学报,2009,24(1):61-64.
作者姓名:郑林林  冯守爱  高峰  朱珍平
作者单位:1. 太原理工大学 材料科学与工程学院,太原 030024; 2. 中国科学院 山西煤炭化学研究所 煤转化国家重点实验室,太原 030001; 3.中国科学院 研究生院,北京 100049
摘    要:以甲醇为溶剂, 硝酸镉和硫脲为原料, 通过溶剂热法合成了CdS中空纳米球, 采用TEM、EDS和XRD对样品形貌和结构进行了表征. TEM与EDS分析显示产物主要为洋葱状CdS中空纳米球, 外径为5~17nm, 空腔直径为3~14nm. XRD分析结果表明,CdS中空纳米球为六方纤锌矿结构. 并初步考察了醇类溶剂对形成CdS纳米结构的影响. 结果表明,当以无水乙醇或正戊醇为溶剂时,产物分别为CdS颗粒团簇或CdS纳米颗粒组装的微球,说明甲醇对中空结构的形成起了重要作用. 以甲醇作溶剂时, 中空纳米球的形成可能是CdS纳米片层高压下卷曲形成的. 

关 键 词:硫化镉  中空纳米球  甲醇  溶剂热合成  
收稿时间:2008-3-11
修稿时间:2008-5-6

Methanol-mediated Solvothermal Synthesis of Hexagonal CdS Hollow Nanospheres
ZHENG Lin-Lin,FENG Shou-Ai,GAO Feng,ZHU Zhen-Ping.Methanol-mediated Solvothermal Synthesis of Hexagonal CdS Hollow Nanospheres[J].Journal of Inorganic Materials,2009,24(1):61-64.
Authors:ZHENG Lin-Lin  FENG Shou-Ai  GAO Feng  ZHU Zhen-Ping
Affiliation:1. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China; 3. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
Abstract:CdS hollow nanospheres were synthesized via solvothermal route from cadmium nitrate and thiourea with methanol as medium. Morphology and structures of the as-obtained products were characterized by TEM, EDS and XRD. TEM and EDS analysis show that the products are mainly onion-like CdS hollow nanospheres, with external diameter of 5-17nm and hollow inner size of 3-14nm. XRD tests indicate that these hollow nanospheres exhibit hexagonal wurtzite structure. The function of alcohol solvent on the growth of CdS nanostructure is also studied preliminary. As absolute ethanol or 1-pentanol is employed as a substitute for solvent, the products are congeries of CdS nanoparticles and microspheres assembled by CdS nanoparticles, respectively. The results demonstrate that methanol plays a significant role in the formation of hollow structure. The formation of hollow nanospheres may be caused by curling of CdS nanoflakes under the high vapor pressure of methanol.
Keywords:CdS  hollow nanosphere  mathanol  solvothermal synthesis
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