不同形貌Co_3O_4和NiO的可控合成及光学性质  

Shape Controlled Synthesis and Optical Property of Co_3O_4 and NiO

作　　者：张平[1] 雷超[1] 鲁振江[1] 季辰辰[1] 蔡长君[1] 包淑娟[1] 贾殿赠[1] 

机构地区：[1]新疆大学应用化学研究所,乌鲁木齐830046

出　　处：《无机化学学报》2012年第7期1435-1440,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20963011;21163021);新疆自治区自然科学基金(No.2011211A001);教育部科学技术重点项目(No.210245);新疆博士启动基金(No.BS090120)资助项目

摘　　要：采用沉淀法,选择不同的钴盐和镍盐,以草酸为沉淀剂,磷酸三钠作为形貌导向剂,分别合成了具有特殊形貌的四氧化三钴和氧化镍。并对样品进行了微观结构、形貌和光学性质的表征。结果表明:在磷酸三钠的辅助下,四氧化三钴的晶体生长沿一维方向发展,氧化镍的晶体生长沿二维方向发展。紫外光谱测试表明,磷酸三钠参与下得到的四氧化三钴和氧化镍的禁带宽均增加。Cobalt oxide and nickel oxide with a special morphology were synthesized by precipitation method, in those process, oxalic acid was used as the precipitating agent, trisodium phosphate as a morphology directing agent, different cobalt salts and nickel salts supported Coz~ and Niz＋ to form C0304 and NiO. The products were characterized by XRD, SEM and UV-Vis spectrum. The results show that in the aid of trisodium phosphate, the crystal growth of C0304 is along the one-dimensional direction, while nickel oxide is along dimensional direction. The band gap of cobalt oxide and nickel oxide which is obtained with the help of Na3PO4 has increased than those of obtained without Na3PO4.

关 键 词：四氧化三钴 氧化镍 磷酸三钠 禁带宽 

分 类 号：O611.4[理学—无机化学]