胶质碳球为模板制备NiO空心球(英文)  

Synthesis of NiO Hollow Spheres Using Colloidal Carbon Spheres as Template

作　　者：武拥建[1] 郑明涛[1] 谢春林[1] 靳权[1] 易观贵[1] 刘应亮[1] 

机构地区：[1]暨南大学化学系,纳米化学研究所,广州510632

出　　处：《无机化学学报》2011年第12期2447-2452,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家-广东联合基金(No.U0734005);国家自然科学青年基金(No.20906037);中央高校基本科研业务费专项资金(No.21610102)资助项目

摘　　要：以胶质碳球为模板、六亚甲基四胺为沉淀剂,在乙醇中溶剂热反应,再经500℃煅烧6 h制备了NiO空心球。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶变换红外光谱(FTIR)和低温氮吸附-脱附,对NiO的结构和形貌进行了表征。结果表明溶剂热反应时间是制备完整NiO空心球的关键因素,溶剂热反应12 h,再经空气中煅烧,可制得形貌均一的NiO空心球。所得产物是由NiO纳米粒子组装而成的具有多孔结构的空心球。同时,本文对NiO空心球结构的形成过程和可能机理进行了分析和讨论。NiO hollow spheres were synthesized by a solvothermal reaction using colloidal carbon spheres（CCS） as sacricial template and hexamethylenetetramine（HMT） as precipitating agent in ethanol,and then calcined at 500 ℃ for 6 h.The characteristics of these NiO hollow spheres samples were characterized by XRD,SEM,TEM,FTIR and low temperature nitrogen adsorption-desorption isotherms.The results show that solvothermal reaction time is crucial to the integrity of the hollow spheres.The well defined NiO hollow spheres can be synthesized through 12 h solvothermal treatment and then calcination in air.The as-synthesized NiO hollow spheres have the porous wall consisted of nanosized particles.Moreover,the formation mechanism of NiO hollow spheres is also discussed.

关 键 词：氧化镍(NiO) 空心球 胶质碳球 溶剂热 

分 类 号：O614.813[理学—无机化学]