一维氮掺杂微孔碳-氧化锰同轴异质纳米结构的制备与储能应用

项目名称： 一维氮掺杂微孔碳-氧化锰同轴异质纳米结构的制备与储能应用

项目编号： No.51472221

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 杜银霄

作者单位： 郑州航空工业管理学院

项目金额： 83万元

中文摘要： 超级电容器主要通过碳双电层材料或无机氧化物半导体赝电容材料，与相对电极进行相反电荷离子的可逆吸/脱附储存和释放能量。碳双电层材料电容较小，导电性能高、结构稳定性好；无机氧化物半导体赝电容材料电容较高，但导电性能较差、能量密度和循环性能低。本项目拟通过对碳-氧化锰同轴异质一维纳米材料制备技术、掺氮碳微孔结构制备技术的探索，开发出兼具碳材料高导电性和结构稳定性、以及无机金属氧化物高电容优势的新型复合电容材料；并系统研究氮掺杂对碳能量带隙和电子给受能力基本行为的影响规律，以及碳双电层-氧化锰赝电容耦合效应的基本规律，为电容材料的开发提供理论依据和技术支持。

中文关键词： 氮掺杂；微孔碳-氧化锰；同轴异质；储能

英文摘要： Supercapacitors are electrochemical energy storage devices based on the adsorption-desorption process of oppositely charged ions through carbon electric double layer or metal oxide pseudocapacitance materials and counter electrode materials. Carbon materials for electric double layer capacitors have low capacitance, high electric conductivity, and good structure stability whereas inorganic metal oxide semiconductors exhibit relatively high pseudocapacitance but low electric conductivity, low energy density, and low cyclic stability. In this proposed project, we are planning to develop new composite materials based on nitrogen-doped microporous carbon materials and one dimensional carbon-manganese oxide coaxial hybrid materials. The developed materials are expected to have good electric conductivity, great structural stability, and high capacitance as well. In addition, the effect of doped nitrogen on the energy gap and electrical behavior of carbon material and the coupling effect of carbon electric double layer-manganese oxide pseudocapacitance will be systematically studied. The results and conclusions from this project will provide theoretical and technical support for the development of supercapacitor materials.

英文关键词： N-doped;microporous carbon/MnO2;coaxial heterostructure;energy storage