花状形貌层状氧化锰的制备与表征  

Synthesis and characterization of layered manganese oxide with flower-like morphology

作　　者：王建芳[1,2] 苏智魁[1] 庄肃凯[1] 刘宗怀[2] 

机构地区：[1]商洛学院化学与化学工程系,陕西商洛726000 [2]陕西师范大学材料科学与工程学院

出　　处：《无机盐工业》2012年第7期25-27,共3页Inorganic Chemicals Industry

基　　金：陕西省教育厅项目(09JK420);陕西省商洛学院科研基金项目(11SKY-FWDF002)

摘　　要：在微酸性环境中高锰酸钾自身分解,利用低温水热法制备了花状形貌的Birnessite型层状氧化锰。探讨了温度及表面活性剂对其形貌的影响。采用XRD、SEM、N2吸附-脱附实验等手段对所合成的多孔材料进行了表征。花状形貌的层状氧化锰在1 mol/L的硫酸钠溶液中,扫描速度为5 mV/s时显示出较高的比电容,其比电容达到190 F/g。Birnessite type layered manganese oxide with flower-like morphology was synthesized via low-temperature hydrothermal treatment in weak acidic KMnO4 solution.Effects of temperature and surfactants on the morphology and structure of the product were investigated.The as-prepared material was characterized by XRD, SEM, and N2 adsorption-desorption. Specific capacitance of layered manganese oxide with flower-like morphology reached as high as 190 F/g at a sweep rate of 5 mV/s in 1 mol/L Na2SO4 solution.

关 键 词：层状氧化锰 花状 KMNO4 比电容 

分 类 号：TQ137.12[化学工程—无机化工]