介观结构储能材料的设计与性能研究
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- 英文论文题名：Design and energy storage performance of mesostructured materials
- 论文作者：吴强 ; 赖红伟 ; 赵进 ; 吕之阳 ; 王喜章 ; 杨立军 ; 胡征
- 英文论文作者：Qiang Wu ; Hongwei Lai ; Jin Zhao ; Zhiyang Lyu ; Xizhang Wang ; Lijun Yang ; Zheng Hu ; Key Laboratory of Mesoscopic Chemistry of MOE ; School of Chemistry and Chemical Engineering ; Nanjing University
- 年：2016
- 作者机构：介观化学教育部重点实验室南京大学化学化工学院;
- 论文关键词：介观结构 ; 电化学储能 ; 电池 ; 电极设计
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十二分会：能源纳米材料物理化学
- 语种：中文
- 分类号：TB34
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十二分会 ; 能源纳米材料物理化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：119k
- 原文格式：D
- 会议级别：全国
摘要
随着纳米材料科学研究的不断深入,以纳米结构单元按照一定方式组装而成的介观结构材料越来越引起人们的重视。这类新材料既具有纳米结构单元的"纳米效应",其有序组装还产生新的协同作用及集合效应,成为开发新型功能材料的重要源泉,是当今前沿热点~([1])。在电化学储能中,介观结构材料的多级孔结构有助于电解液的扩散、纳米结构单元有利于缩短离子固态扩散距离、三维网络结构有利于电子传输,可协同促进电化学反应的快速进行,从而表现出优异的储能性能。最近,我们开发了具有高比表面积、大孔容和良好导电性的介观结构碳纳米笼,在超级电容器中表现出比电容大、倍率性能好的优点;填充S后在锂-硫电池中具有比容量大、倍率性能高和循环寿命长的特点~([2-4]);设计合成的NiO/Ni复合介观结构材料克服了NiO导电性差的缺点,将其储能性能提高到接近于理论极限~([5])。这些进展揭示了介观结构材料在储能中的巨大优势,为发展先进电化学储能材料开拓了新的空间。
The mesostructured materials assembled by nanostructured building blocks with particular manners possess the characters of hierarchical arrangement and multiscale pore structure, showing excellent performances in electrochemical energy storage. The mesostructures of 3D hierarchical carbon nanocages(CNCs) showed large specific capacitance and high rate as the electrodes for supercapacitors. The S@CNCs with high loading of sulfur(~80 wt%) presented large capacity, high-rate capability and long cycle life in lithium-sulfur batteries. The mesostructured NiO/Ni composites exhibited high capacity, superior rate and cycling performance in aqueous alkaline batteries. The excellent energy storage performance results from the synergism of high conductivity, short ion solid-state diffusion length and good accessibility to electrolyte. These progresses suggest the great promise of the mesostructured materials in electrochemical energy storage.
The mesostructured materials assembled by nanostructured building blocks with particular manners possess the characters of hierarchical arrangement and multiscale pore structure, showing excellent performances in electrochemical energy storage. The mesostructures of 3D hierarchical carbon nanocages(CNCs) showed large specific capacitance and high rate as the electrodes for supercapacitors. The S@CNCs with high loading of sulfur(~80 wt%) presented large capacity, high-rate capability and long cycle life in lithium-sulfur batteries. The mesostructured NiO/Ni composites exhibited high capacity, superior rate and cycling performance in aqueous alkaline batteries. The excellent energy storage performance results from the synergism of high conductivity, short ion solid-state diffusion length and good accessibility to electrolyte. These progresses suggest the great promise of the mesostructured materials in electrochemical energy storage.
引文
[1]Service,R.F.Science 2012,335:1167.
[2]Xie,K.;Qin,X.T.;Wang,X.Z.;Wang,Y.N.;Tao,H.S.;Wu,Q.;Yang,L.J.;Hu,Z.Adv.Mater.2012,24:347.
[3]Zhao,J.;Lai,H.W.;Lyu,Z.Y.;Jiang,Y.F.;Xie,K.;Wang,X.Z.;Wu,Q.;Yang,L.J.;Jin,Z.;Ma,Y.W.;Liu,J.;Hu,Z.Adv.Mater.2015,27:3541.
[4]Lyu,Z.Y.;Xu,D.;Yang,L.J.;Che,R.C.;Feng,R.;Zhao,J.;Li,Y.;Wu,Q.;Wang,X.Z.;Hu,Z.Nano Energy 2015,12:657.
[5]Lai,H.W.;Wu,Q.;Zhao,J.;Shang,L.M.;Li,H.;Che,R.C.;Lyu,Z.Y.;Xiong,J.F.;Yang,L.J.;Wang,X.Z.;Hu,Z.Energy Environ.Sci.2016,DOI:10.1039/C6EE00603E.
[2]Xie,K.;Qin,X.T.;Wang,X.Z.;Wang,Y.N.;Tao,H.S.;Wu,Q.;Yang,L.J.;Hu,Z.Adv.Mater.2012,24:347.
[3]Zhao,J.;Lai,H.W.;Lyu,Z.Y.;Jiang,Y.F.;Xie,K.;Wang,X.Z.;Wu,Q.;Yang,L.J.;Jin,Z.;Ma,Y.W.;Liu,J.;Hu,Z.Adv.Mater.2015,27:3541.
[4]Lyu,Z.Y.;Xu,D.;Yang,L.J.;Che,R.C.;Feng,R.;Zhao,J.;Li,Y.;Wu,Q.;Wang,X.Z.;Hu,Z.Nano Energy 2015,12:657.
[5]Lai,H.W.;Wu,Q.;Zhao,J.;Shang,L.M.;Li,H.;Che,R.C.;Lyu,Z.Y.;Xiong,J.F.;Yang,L.J.;Wang,X.Z.;Hu,Z.Energy Environ.Sci.2016,DOI:10.1039/C6EE00603E.