CoOOH/MnO_2/石墨烯复合材料的合成及其超级电容性能  

Synthesis and supercapacitive property of CoOOH/MnO_2/FGS composites

作　　者：宋楠楠[1,2] 胡晨曦[3] 黄猛[1] 胡卫兵[1,2] 

机构地区：[1]湖北民族学院湖北省生物资源保护与利用重点实验室,恩施445000 [2]湖北民族学院化学与环境工程学院,恩施445000 [3]山东大学材料科学与工程学院,济南250061

出　　处：《化工新型材料》2015年第3期96-99,共4页New Chemical Materials

基　　金：国家自然科学基金(21461008);生物资源保护与利用湖北省重点实验室开放基金(PKLHB1303)

摘　　要：以热剥离石墨烯为基底,通过一步水热法制备了CoOOH/MnO_2/石墨烯复合材料。采用XRD、SEM和TGA等技术对产品进行了表征。利用循环伏安法和恒电流充放电研究并比较了各单一材料与复合材料的电容性能。结果表明:CoOOH/MnO_2/石墨烯复合材料中石墨烯含量为65%时,比电容量最大高达509.00F/g。研究还发现复合材料具有相当好的循环稳定性能,循环1000次之后电容保持率高达84.45%,高于CoOOH/MnO_2纳米材料(63.95%)。One-step hydrothermal method was used for preparing CoOOH/MnO2/FGS from thermally exfoliated graphene oxide as carrier. SEM,XRD and TGA were employed to investigate the product. A composite nanomaterial composed of graphene-based CoOOH/MnO2 nanoparticles was proved. The supercapacitor performance of CoOOH/MnO2 nanoparticles,RGO and CoOOH/MnO2/FGS nanocomposites were compared respectively. When FGS content of CoOOH/ MnO2/FGS nanocomposites was 65 %, the maximum capacitance was as high as 509.00 F/g. After 1000 cycles, its specific capacitance was 84. 45% than that of the single CoOOH/MnO2 nanoparticles. It was obvious that CoOOH/MnO2/FGS nanocomposites exhibited excellent supercapacitive behaviors.

关 键 词：水热法 CoOOH/MnO2/石墨烯 复合材料 超级电容器 

分 类 号：TB332[一般工业技术—材料科学与工程] TM53[电气工程—电器]