介孔二氧化锰的合成与表征  

Synthesis and characterization of mesoporous MnO_2

作　　者：彭少华[1] 徐金玲[2] 徐孝文[2] 

机构地区：[1]苏州大学分析测试中心,江苏苏州215123 [2]苏州科技学院化学与生物工程学院,江苏苏州215009

出　　处：《苏州科技学院学报（自然科学版）》2013年第2期33-36,共4页Journal of Suzhou University of Science and Technology （Natural Science Edition）

基　　金：国家自然科学基金资助项目(21074086)

摘　　要：以MnCl2和(NH4)6Mo7O24.4H2O为原料,制备了MnO2/MoO3复合物,并将其用氢氧化钠溶液溶解,得到介孔MnO2。用X射线粉末衍射、透射电镜和比表面进行了表征,样品为介孔α-MnO2。电极循环伏安研究表明:在1 mol·L-1Na2SO4溶液中,电位窗口为-0.2-0.8 V(vs SEC)范围内,5 mV·s-1的扫描速度下,制备的介孔α-MnO2的比电容为345 F·g-1。Mesoporous MnO2 was prepared by using MnCl2 and （NH4）dMoTO24.4H2O as raw materials via deposit- ing, washing, calcining, and dissolving with aqueous NaOH. The synthesized product was characterized by XRD, TEM ,and BET. The results show that the product is mesoporous α-MnO2. The capacitive performance of MnO2 was measured by cyclic voltammetry （CV） method. The results indicate that in 1 tool. L-1 Na2SO4 electrolyte,the potential window is within the range of-0.2-0.8 V （vs SCE）,and that at the scan rate of 5 mV.s-1,mesoporous MnO2 exhibits a specific capacitance value of 356 F. g-1.

关 键 词：α-MnO2 介孔 比表面 电容性能 

分 类 号：O611.5[理学—无机化学]