氮掺杂碳纤维/NiFe2O4复合气凝胶柔性电极的多尺度构筑及其储能性能研究

项目名称： 氮掺杂碳纤维/NiFe2O4复合气凝胶柔性电极的多尺度构筑及其储能性能研究

项目编号： No.21501154

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 高可政

作者单位： 郑州轻工业学院

项目金额： 25万元

中文摘要： 本项目从复合气凝胶柔性电极多尺度构筑出发，纤维素纳米纤维、甲壳素纳米纤维分别作为柔性氮掺杂碳纤维气凝胶的碳源、氮源，以利用氮掺杂碳纤维气凝胶优异的机械柔韧性能来改善NiFe2O4柔韧性能的不足，同时利用NiFe2O4卓越的储能性能来显著提高碳电极的能量密度为目的。探索获得氮掺杂碳纤维/NiFe2O4复合气凝胶柔性电极的工艺路线和多尺度构筑条件，考察获得的复合气凝胶电极的网络孔洞结构、NiFe2O4微纳形貌及分布与物理化学性能，尝试建立多尺度构筑参数—复合气凝胶网络孔洞结构和NiFe2O4微纳形貌及分布—物理化学性能三角关系；同时着重对氮掺杂碳纤维/NiFe2O4复合气凝胶电极的能量密度、机械柔韧性能进行评价，重点阐述多尺度构筑参数和组成比例对复合气凝胶不同尺度结构形貌及NiFe2O4分布的影响，以及最终对氮掺杂碳纤维/NiFe2O4复合气凝胶电极的能量密度和机械柔韧性能的影响。

中文关键词： 超级电容器；能量密度；柔性电极；气凝胶；多尺度

英文摘要： In our present proposal, starting from multi-scale preparation of the composite aerogel electrodes, cellulose nanofibers and chitin nanofibers are used as a carbon source and a nitrogen source of the flexible nitrogen-doped carbon fiber aerogel, respectively, we are aiming at enhancing the flexibility performance of the NiFe2O4 with nitrogen-doped carbon fiber aerogel with excellent flexibility performance, and at enhancing the energy density of the carbon electrode with NiFe2O4 with excellent storage Properties. During running this proposal, the optimal parameters and multi-scale conditions for synthesizing the nitrogen-doped carbon fiber/NiFe2O4 composite aerogel flexible electrodes will be set up, the network pore structure, micro/nano morphology and distribution for NiFe2O4 and physicochemical properties of the resulting nitrogen-doped carbon fiber/NiFe2O4 composite aerogel electrodes will be investigated, the relationship among multi-scale synthetic conditions- network pore structure of composite aerogels, micro/nano morphology and distribution for NiFe2O4-physicochemcial properties of the resulting nitrogen-doped carbon fiber/NiFe2O4 composite aerogel electrodes will be determined. At the same time, energy density and mechanical flexibility properties of the resulting nitrogen-doped carbon fiber/NiFe2O4 composite aerogel flexible electrodes will be emphatically investigated, the effect of the multi-scale synthetic conditions and composition ratios on the network pore structure of composite aerogels, micro/nano morphology and distribution for NiFe2O4 and ultimately on the energy density and mechanical flexibility properties of the composite aerogel electrodes will be emphatically clarified.

英文关键词： Supercapacitors;Energy density;Flexible Electrode;Aerogel;Multi-scale