In the past decade, researchers in the fields of energy production have concentrated on the improvement of new energy storage devices. Lithium-ion batteries(LIBs) and faradaic supercapacitors(FSs) have attracted speci...In the past decade, researchers in the fields of energy production have concentrated on the improvement of new energy storage devices. Lithium-ion batteries(LIBs) and faradaic supercapacitors(FSs) have attracted special attention as a result of the rapid development of new electrode nanomaterials, especially hybrid nanomaterials, which can meet the increasingly higher requirements for future energy, such as the capability to deliver high-power performance and an extremely long life cycle. In these hybrid nanostructures, a series of synergistic effects and unique properties arising from the combination of individual components are a major factor leading to improved charge/discharge capability, energy density, and system lifetime. This paper describes the most recent progress in the growth of hybrid electrode materials for LIBs and FSs systems, focusing on the combination of zero-dimensional(0 D), one-dimensional(1 D), two-dimensional(2 D), and three-dimensional(3 D) nanomaterials, respectively.展开更多
A core-shell hybrid nanostructure,a hard core of single-crystalline lanthanum hydroxide nanowires and a soft shell of brushes of poly (ε-caprolactone) (PCL), has been successfully prepared by ring-opening polymerizat...A core-shell hybrid nanostructure,a hard core of single-crystalline lanthanum hydroxide nanowires and a soft shell of brushes of poly (ε-caprolactone) (PCL), has been successfully prepared by ring-opening polymerization (ROP) on the surface of nanowires. Such special structures were proved by TEM images. Meanwhile, the thickness of polymer layers was measured. The chemical component and the grafted PCL quantity of the sample were characterized by FTIR and TGA, which provides a simple and universal method to functionalize non-carbon nanowires. The modified lanthanum hydroxide nanowires can be well-dispersed in good solvents for PCL.展开更多
以碳纳米管(CNTs)、高锰酸钾、醋酸锰、聚乙烯吡咯烷酮为原料,通过一步溶液法辅以热处理,制备出以CNTs为核,以碳包覆氧化锰(Mn Ox@C)为壳的一维壳核结构CNTs/Mn Ox@C纳米复合材料,并对该纳米复合材料的结构、形貌及锂电性能进行分析。...以碳纳米管(CNTs)、高锰酸钾、醋酸锰、聚乙烯吡咯烷酮为原料,通过一步溶液法辅以热处理,制备出以CNTs为核,以碳包覆氧化锰(Mn Ox@C)为壳的一维壳核结构CNTs/Mn Ox@C纳米复合材料,并对该纳米复合材料的结构、形貌及锂电性能进行分析。研究结果表明,通过一步溶液法制备的CNTs/Mn Ox@C纳米复合材料表面Mn Ox@C包覆均匀,氧化锰质量分数高达50%。该材料作为锂电负极材料在100 m A/g的恒流充放电下循环100次后放电比容量达到483.5 m Ah/g;在1000m A/g的大电流充放电循环中放电比容量达到368.6 m Ah/g。展开更多
Fibers are low-cost substrates that are abundantly used in our daily lives. This review highlights recent advances in the fabrication and application of multifunctional fibers to achieve fibers with unique functions f...Fibers are low-cost substrates that are abundantly used in our daily lives. This review highlights recent advances in the fabrication and application of multifunctional fibers to achieve fibers with unique functions for specific applications ranging from textile electronics to biomedical applications. By incorporating various nanomaterials such as carbon nanomaterials, metallic nanomaterials, and hydrogel-based biomaterials, the functions of fibers can be precisely engineered. This review also highlights the performance of the functional fibers and electronic materials incorporated with textiles and demonstrates their practical application in pressure/tensile sensors,chemical/biosensors, and drug delivery. Textile technologies in which fibers containing biological factors and cells are formed and assembled into constructions with biomimetic properties have attracted substantial attention in the field of tissue engineering. We also discuss the current limitations of functional textile-based devices and their prospects for use in various future applications.展开更多
基金supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education(NRF-2017R1D1A1A09000642)by a grant from the R&D Program of the Korea Railroad Research Institute (KRRI), Republic of Korea
文摘In the past decade, researchers in the fields of energy production have concentrated on the improvement of new energy storage devices. Lithium-ion batteries(LIBs) and faradaic supercapacitors(FSs) have attracted special attention as a result of the rapid development of new electrode nanomaterials, especially hybrid nanomaterials, which can meet the increasingly higher requirements for future energy, such as the capability to deliver high-power performance and an extremely long life cycle. In these hybrid nanostructures, a series of synergistic effects and unique properties arising from the combination of individual components are a major factor leading to improved charge/discharge capability, energy density, and system lifetime. This paper describes the most recent progress in the growth of hybrid electrode materials for LIBs and FSs systems, focusing on the combination of zero-dimensional(0 D), one-dimensional(1 D), two-dimensional(2 D), and three-dimensional(3 D) nanomaterials, respectively.
基金supported by the National Natural Science Foundation of China (Grant Nos.50373020 and 20836004)National Basic Research Program of China (Grant No.2009CB930602)
文摘A core-shell hybrid nanostructure,a hard core of single-crystalline lanthanum hydroxide nanowires and a soft shell of brushes of poly (ε-caprolactone) (PCL), has been successfully prepared by ring-opening polymerization (ROP) on the surface of nanowires. Such special structures were proved by TEM images. Meanwhile, the thickness of polymer layers was measured. The chemical component and the grafted PCL quantity of the sample were characterized by FTIR and TGA, which provides a simple and universal method to functionalize non-carbon nanowires. The modified lanthanum hydroxide nanowires can be well-dispersed in good solvents for PCL.
文摘以碳纳米管(CNTs)、高锰酸钾、醋酸锰、聚乙烯吡咯烷酮为原料,通过一步溶液法辅以热处理,制备出以CNTs为核,以碳包覆氧化锰(Mn Ox@C)为壳的一维壳核结构CNTs/Mn Ox@C纳米复合材料,并对该纳米复合材料的结构、形貌及锂电性能进行分析。研究结果表明,通过一步溶液法制备的CNTs/Mn Ox@C纳米复合材料表面Mn Ox@C包覆均匀,氧化锰质量分数高达50%。该材料作为锂电负极材料在100 m A/g的恒流充放电下循环100次后放电比容量达到483.5 m Ah/g;在1000m A/g的大电流充放电循环中放电比容量达到368.6 m Ah/g。
基金supported by the Priority Research Centers Program(No.2012-0006689)through the National Research Foundation(NRF)of Korea funded by the Ministry of Education,Science and Technology(MEST)the R&D program of MOTIE/KEIT[10064081,Devclopment of fiber-based flexible multimodal pressure sensor and algorithm for gesture/posture-recognizable wearable devices]+3 种基金partial support from the National Research Foundation of Korea(No.NRF-2017K2A9A2A06013377,NRF-2017M3A7B4049466)the Yonsei University Future-leading Research Initiative and Implantable artificial electronic skin for an ubiquitous healthcare system of 2016-12-0050supported by KIST Project(Nos.2E26900,2E27630)supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(No.2016R1A6A3A03006491)
文摘Fibers are low-cost substrates that are abundantly used in our daily lives. This review highlights recent advances in the fabrication and application of multifunctional fibers to achieve fibers with unique functions for specific applications ranging from textile electronics to biomedical applications. By incorporating various nanomaterials such as carbon nanomaterials, metallic nanomaterials, and hydrogel-based biomaterials, the functions of fibers can be precisely engineered. This review also highlights the performance of the functional fibers and electronic materials incorporated with textiles and demonstrates their practical application in pressure/tensile sensors,chemical/biosensors, and drug delivery. Textile technologies in which fibers containing biological factors and cells are formed and assembled into constructions with biomimetic properties have attracted substantial attention in the field of tissue engineering. We also discuss the current limitations of functional textile-based devices and their prospects for use in various future applications.
