Cu(OH)_3NO_3@SiO_2复合纳米盘的合成及热稳定性研究  

Synthesis and thermal stability of Cu(OH)_3NO_3@SiO_2 composite nanodisk

作　　者：薛冬[1] 郭长友[1] Xue Dong;Guo Changyou(Fushun Research Institute of Petroleum and Petrochemicals,SINOPEC,Fushun 113001)

机构地区：[1]中国石油化工股份有限公司抚顺石油化工研究院,抚顺113001

出　　处：《化工新型材料》2018年第8期136-138,共3页New Chemical Materials

基　　金：中国石油化工股份有限公司合同项目(FX1502)

摘　　要：在非离子表面活性剂的反向胶束中,用氨水作为碱式硝酸铜的沉淀剂和四乙基硅烷水解的催化剂,合成了尺寸均匀的碱式硝酸铜@二氧化硅[Cu_2(OH)_3NO_3@SiO_2]纳米盘,用扫描电子显微镜、高分辨透射电子显微镜和X射线衍射方法表征了Cu_2(OH)_3NO_3@SiO_2纳米盘的结构,讨论了其形成机理,进一步探索了其转化为氧化铜@二氧化硅(CuO@SiO2)的热稳定性。Cu2（OH）3NO3@SiO2 nanodisks were prepared by one-pot synthesis through in-situ reaction between Cu（NO3）2 and ammonia in the reverse micelle,followed by TEOS hydrolysis.The shape transformation of Cu-SiO2 composite nanoparticles from spheres to disks was realized in reverse micelle by controlling ammonia concentration.The disk-shape of product was determined by hard template of layered Cu2（OH）3NO3 compound and the size was limited by the micelle.The materials were characterized by scanning electron microscope（SEM）,transmission electron microscope（TEM）and X-ray diffraction（XRD）.The nanodisk was an important raw material for Cu,Cu2O and CuO,@SiO2,which had an ultrahigh thermal stability.

关 键 词：碱式硝酸铜@二氧化硅 纳米盘 反向胶束 

分 类 号：TB383.1[一般工业技术—材料科学与工程]