新型嵌入式石墨烯纳米带/有序介孔碳复合电极材料的可控构建及其高比能量储能性能研究
Project Number51462020
张德懿
Abstract在不牺牲高功率密度和循环寿命的同时大幅提高超级电容器的能量密度,将使其有望取代二次电池,为能源技术领域带来革命性的进步。针对现阶段制约双电层电容器(EDLCs)能量密度提高的关键问题,本项目拟以富勒烯及其衍生物为前驱体,有序介孔碳(OMC)为容器和模板,利用高温下前驱体笼状分子在OMC介孔孔道内的破裂重排和自组装过程可控合成石墨烯纳米带(GNRs),并通过杂原子封端处理稳定GNRs的纳米结构,从而构建一种新型的嵌入式石墨烯纳米带/有序介孔碳复合电极材料。重点考察前驱体分子在OMC介孔孔道内的结构转化和自组装过程,探讨GNRs边缘面比例及结构的调控方法,明确复合材料结构与EDLCs性能之间的构效关系,最终通过对复合材料结构的精细设计和调控,实现EDLCs能量密度的大幅提升。本项目的实施有望为高比能量EDLCs开发一种性能优异的新型电极材料,为EDLCs最终取代二次电池带来希望。【英文摘要】Thedevelopmentofthesupercapacitorwithcomparableenergydensitytothatofbatterieswouldbringarevolutionaryadvancementinenergytechnology.Atpresent,theenergydensityofthesupercapacitorsbasedonelectricaldoublelayercapacitanceiscurrentlyfarlowerthanthatofbatteries,whichlimitstheiradoptiontothoseapplicationsthatrequirehighcyclelifeandpowerdensity.Basedonthekeyfactorsaffectingthefurtherimprovementsintheenergydensityofsupercapacitors,thisprojectsuggestesagraphenenanoribbons@orderedmesoporouscarboncompositewithspecialstructureandexcellentsupercapacitivebehaviorbyself-assemblyofgraphenenanoribbonsusingfullereneasprecursorwithinthemesoporesofcarbontemplate.Thisprojectintendstoemphasisontheinvestigationintothestructureconversionandself-assemblyprocessoftheprecursortographenenanoribbonswithinthemesoporesofcarbontemplate.Meanwhile,themethodtoadjusttheedgearchitectureandspaceconfigurationoftheGNRswouldbeexplored.Futhermore,thisprojectwouldtrytoilluminatetherelationshipbetweenthearchitectureandthesupercapacitiveperformanceofthesuggestedcomposite.Theaimofthisprojectistogreatlyimprovetheenergydensityofsupercapacitorswithoutsacrificingcyclelifeorhighpowerdensitybysubtleadjustmentofthearchitectureandsurfacechemistryoftheelectrodmaterials.Thesmoothimplementationofthisproposedprojectwouldprovideanewstrategyforthegreatimprovementoftheenergydensityofsupercapacitors.
Subtype地区科学基金项目
Project Source国家自然科学基金
2015-01
End Date2018-12
MOST Discipline Catalogue10 - 材料科学 ; 1002 - 无机非金属材料
Host Institution兰州理工大学
Project Funding470000.0
CountryCN
Language中文
Document Type项目
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64715
Collection石油化工学院
Recommended Citation
GB/T 7714
张德懿.新型嵌入式石墨烯纳米带/有序介孔碳复合电极材料的可控构建及其高比能量储能性能研究.2015.
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