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CF/MXene结构超级电容器的设计与性能 被引量:1
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作者 成丽媛 赵鑫 +2 位作者 屈芸 秦佳音 孙洁 《工程塑料应用》 CAS CSCD 北大核心 2022年第11期8-16,73,共10页
为了制备出兼具力学承载和能量存储功能的结构超级电容器(结构超电)复合材料,首先采用二维纳米片状材料MXene对碳纤维(CF)进行表面改性,制备出高性能的CF/MXene复合纤维电极并将其组装成超级电容器,接着采用嵌入法将其排布在玄武岩纤维... 为了制备出兼具力学承载和能量存储功能的结构超级电容器(结构超电)复合材料,首先采用二维纳米片状材料MXene对碳纤维(CF)进行表面改性,制备出高性能的CF/MXene复合纤维电极并将其组装成超级电容器,接着采用嵌入法将其排布在玄武岩纤维增强织物中,通过灌注环氧树脂共形固化制备结构超电复合材料。系统分析了CF/MXene超级电容器的耐温稳定性及其覆膜处理的影响作用,并对制得结构超电复合材料的综合性能进行全面考察。结果表明,采用聚二甲基硅氧烷(PDMS)对CF/MXene超级电容器进行覆膜处理,能有效保护其经受60℃持续12 h加热处理后的储能稳定性;组装的结构超电的密度为0.19 g/cm^(3),比电容可达3.38 mF/g(0.05 A/g),能量密度和功率密度分别为15.5 mWh/kg和256.4 mW/kg,其弯曲强度和弯曲弹性模量分别可达到199.6 MPa和4.54 GPa,且弯曲破坏后结构超电的电容保持率仍高达91%。整体上,制备的结构超电复合材料具备质轻、高强、储能性能优良且稳定的特点。 展开更多
关键词 碳纤维 MXene 结构超级电容器 嵌入法 结构储能材料 电化学
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Superstructured carbon materials:Progress and challenges in energy storage and conversion technologies
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作者 ZUO Ming-xue HU Xia +6 位作者 KONG De-bin WEI Xin-ru QIN Xin LV Wei YANG Quan-Hong KANG Fei-yu ZHI Lin-jie 《新型炭材料(中英文)》 北大核心 2025年第4期962-972,共11页
Carbon materials are a key component in energy storage and conversion devices and their microstructure plays a crucial role in determining device performance.However,traditional carbon materials are unable to meet the... Carbon materials are a key component in energy storage and conversion devices and their microstructure plays a crucial role in determining device performance.However,traditional carbon materials are unable to meet the requirements for applications in emerging fields such as renewable energy and electric vehicles due to limitations including a disordered structure and uncontrolled defects.With an aim of realizing devisable structures,adjustable functions,and performance breakthroughs,superstructured carbons is proposed and represent a category of carbon-based materials,characterized by precisely-built pores,networks,and interfaces.Superstructured carbons can overcome the limitations of traditional carbon materials and improve the performance of energy storage and conversion devices.We review the structure-activity relationships of superstructured carbons and recent research advances from three aspects including a precisely customized pore structure,a dense carbon network framework,and a multi-component highly coupled interface between the different components.Finally,we provide an outlook on the future development of and practical challenges in energy storage and conversion devices. 展开更多
关键词 Carbon material application Superstructured carbons Energy storage and conversion
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