| 空心海胆状二氧化锰的制备及其在超级电容器中的应用 |
| |
| 引用本文： | 冯晓苗,闫真真,陈宁娜.空心海胆状二氧化锰的制备及其在超级电容器中的应用[J].无机化学学报,2013,29(18). |
| |
| 作者姓名： | 冯晓苗 闫真真 陈宁娜 |
| |
| 作者单位： | 有机电子与信息显示国家重点实验室培育基地, 南京邮电大学信息材料与纳米技术研究院, 材料科学与工程学院, 南京 210046;有机电子与信息显示国家重点实验室培育基地, 南京邮电大学信息材料与纳米技术研究院, 材料科学与工程学院, 南京 210046;有机电子与信息显示国家重点实验室培育基地, 南京邮电大学信息材料与纳米技术研究院, 材料科学与工程学院, 南京 210046 |
| |
| 基金项目： | 国家自然科学基金（No.20905038），教育部创新团队（IRT1148）资助项目。 |
| |
| 摘 要： | 采用简单的一步水热法制备了空心海胆状二氧化锰，无需任何模板剂和表面活性剂。该材料具有3D的纳米结构，结构稳定，并由单个的二氧化锰空心管自组装而成。该纳米材料的特殊结构为其提供了高的比电容。在1mol·L-1硫酸钠电解液中，扫速为1mV·s-1的条件下，该材料的比电容值为254.6F·g-1。在电流密度为1.0A·g-1的条件下，充放电循环1000次后比电容值仍保持为初始值的97.5%。表明该材料具有良好的电容性能和稳定性，其具备用作高性能超级电容器的电极材料的潜能。
|
| 关 键 词： | 空心海胆结构 二氧化锰 超级电容器 |
| 修稿时间： | 9/2/2014 12:00:00 AM |
Synthesis of Hollow Urchin-Like MnO2 via a Facile Hydrothermal Method and Its Application in Supercapacitors |
| |
| FENG Xiao-Miao,YAN Zhen-Zhen and CHEN Ning-Na.Synthesis of Hollow Urchin-Like MnO2 via a Facile Hydrothermal Method and Its Application in Supercapacitors[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
| |
| Authors: | FENG Xiao-Miao YAN Zhen-Zhen and CHEN Ning-Na |
| |
| Institution: | Key Laboratory for Organic Electronics & Information Displays, Institute of Advanced Materials and School of Materials Science & Engineering, Nanjing University of Posts & Telecommunications, Nanjing 210046, China;Key Laboratory for Organic Electronics & Information Displays, Institute of Advanced Materials and School of Materials Science & Engineering, Nanjing University of Posts & Telecommunications, Nanjing 210046, China;Key Laboratory for Organic Electronics & Information Displays, Institute of Advanced Materials and School of Materials Science & Engineering, Nanjing University of Posts & Telecommunications, Nanjing 210046, China |
| |
| Abstract: | In this study, we described a simple hydrothermal method to synthesize hollow urchin-like manganese dioxide without any template and surfactant. 3D Hollow urchin-like manganese dioxide was consisted of single manganese dioxide tube with stable structure. Its unique structure is beneficial to improve the specific capacitance. The specific capacity is 254.6 F·g-1 in 1 mol·L-1 Na2SO4 electrolyte at a scan rate of 1 mV·s-1. Over 97.5% of the first cycle capacitance was retained after repeating the galvanostatic charge-discharge for 1000 cycles. This nanomaterial could be used to supercapacitor which exhibited excellent stability and capacitive properties, indicating its potential application to act as a promising electrode material for supercapacitors. |
| |
| Keywords: | hollow urchin structure MnO2 supercapacitors |
|
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
