形貌可控Co_3O_4颗粒的制备及表征  

Preparation and Synthesis of Shape Controlled Co_3O_4

作　　者：葛金龙 杨珊珊[1] 孙鹏飞 GE Jin-long;YANG Shan-shan;SUN Peng-tei(School of Material Science and Chemical Engineering,Bengbu University,Bengbu Anhui 233030,China;Institute of Chemical and Application Technology,Bengbu University,Bengbu Anhui 233030,China)

机构地区：[1]蚌埠学院材料与化学工程学院,安徽蚌埠233030 [2]蚌埠学院化工应用技术开发研究所,安徽蚌埠233030

出　　处：《长春师范大学学报》2018年第6期107-111,共5页Journal of Changchun Normal University

基　　金：安徽省高校优秀青年骨干人才国内访学研修项目(gnfx2017134);蚌埠学院工程研究中心项目"环境友好型金属表面处理剂制备及代替磷化工艺优化研究"(BBXYGC2015B05);蚌埠学院"新工科"试点专业建设项目"无机非金属材料工程专业"(2017sdzy03);蚌埠学院重点学科"材料科学与工程"(BBXYZDXK201701);安徽省卓越人才培养教育计划"无机非金属材料工程专业"(2015zjjh036)

摘　　要：本文以Co Cl_2·6H_2O为原料,采用水热法制备了不同形貌的Co_3O_4颗粒,以X射线衍射仪(XRD)、红外光谱仪(FT-IR)、N_2吸附脱附曲线、扫描电子显微镜(SEM)对样品进行了表征。XRD结果表明,煅烧温度高时,样品的析晶较好;红外光谱表明有Co-O键振动吸收峰;N_2吸附脱附曲线为Ⅱ类等温线,比表面积可达到51.96 m^2/g;扫描电镜表明,Na OH用量较大时样品被刻蚀,PVP的用量较大时,样品会发生一定的团聚。The different size and shape Co_3 O_4 particles are successfully prepared using Co Cl_2·6 H_2 O as raw material by means of hydrothermal method. The phase compositions of as-prepared Co_3 O_4 were characterized using X-ray diffractometer（ XRD）,infrared spectroscopy（ FT-IR） and scanning electron microscope（ SEM）. Main pore characteristeristics of the samples were analyzed with nitrogen adsorption. The results of XRD revealed that the capacity of the Co_3O_4 crystallization was intensifying with the increasing calcination temperature. The results of the FT-IR indicates that the Co_3O_4 contains Co-O stretching. The results of the FT-IR indicates that the Co_3O_4 contains vibration absorption. The typical N_2 adsorption desorption isotherm of the samples had a typeⅡ isotherm and BET reached to 51. 96 m^2/g. It was observed from the SEM results that the size and shape of the synthesized Co_3O_4 particles could be controlled by the amount of Na OH and PVP.

关 键 词：四氧化三钴 形貌可控 水热法 PVP 

分 类 号：O643[理学—物理化学]