| Mn2O3微纳米粉体的配合物热解制备与电化学性质 |
| Mn2O3 Sub-Micron Powder: Preparation via Complex Thermolysis Route and Electrochemical Properties |
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| 摘要: 利用液相扩散法制备了异烟酸锰超分子配合物,通过将其在空气中高温煅烧制备了Mn2O3微纳米粉体.利用FTIR、TG-DTA、XRD、TEM和FESEM对产物进行了表征.电化学测试表明,Mn2O3微纳米粉体在0.5 mol·L-1 Na2SO4电解液中表现出良好的电化学电容特性,在电流密度为0.5 A·g-1时其单电极比容量可达到88 F·g-1,循环3 000次后容量保持率可达到80%. |
| 关键词: Mn2O3微纳米粉体 配合物 热解 电化学性能 |
| 基金项目: 江苏省自然科学基金(No.BK2011740),江苏省博士后科研资助计划(No.1001016B)资助项目. |
| Abstract: This report describes a facile preparation and electrochemical properties of Mn2O3 sub-micron powder via thermal decomposition of an isonicotinic acid manganese complex. An isonicotinic acid manganese complex of [Mn(INA)2(H2O)4]n (INA=isonicotinic acid) was synthesized by liquid diffusion method using an aqueous solution of manganese acetate and isonicotinic acid as the raw material. Mn2O3 sub-micron powder was then prepared by solid-state thermolysis of the as-synthesized INA-Mn complex at higher temperature under atmospheric pressure. The obtained products were characterized by FTIR, TG-DTA, XRD, TEM and FESEM. As an electrode material for supercapacitors, the prepared Mn2O3 electrode shows a strong cycle stability in 0.5 mol·g-1 Na2SO4 electrolyte and a specific capacitance of 88 F·g-1 at a current density of 0.5 A·g-1 vs. the saturated calomel electrode (SCE). |
| Keywords: Mn2O3 sub-micron powder complex thermolysis electrochemical properties |
| 投稿时间：2012-04-10 修订日期：2012-06-18 |
| 摘要点击次数: 1583 |
| 全文下载次数: 1970 |
| 张防,张校刚.Mn2O3微纳米粉体的配合物热解制备与电化学性质[J].无机化学学报,2012,28(12):2626-@. |
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