南方科技大学知识苑(SUSTech KC): Core-shell TiO<sub>2</sub>@Au Nanofibers Derived from a Unique Physical Coating Strategy for Excellent Capacitive Energy Storage Nanocomposites

题名	Core-shell TiO₂@Au Nanofibers Derived from a Unique Physical Coating Strategy for Excellent Capacitive Energy Storage Nanocomposites
作者	Ren, Zengliang 1; Shi, Zhicheng 1; Tang, Qingyang 1; Xia, Shuimiao 1; Sun, Liang 2 ; Fan, Runhua 3; Cui, Hongzhi 1; Wang, Hong 2
通讯作者	Shi, Zhicheng; Wang, Hong
发表日期	2024-03-01
DOI	10.1002/adfm.202401907
发表期刊	ADVANCED FUNCTIONAL MATERIALS 影响因子和分区
ISSN	1616-301X
EISSN	1616-3028
摘要	Polymer dielectrics have been widely employed in pulsed power systems, but their applications are severely restricted by the low energy density. Incorporating core-shell nanofillers is one promising strategy to enhance the energy density of polymer dielectrics. Nowadays, core-shell nanofillers are mainly prepared via chemical coating strategies, which always involve complex chemical synthesis procedures. Herein, a unique physical coating strategy is developed to prepare core-shell TiO2@Au nanofibers consisting of monodispersed Au nanoparticles homogeneously anchored on the TiO2 nanofibers. Interestingly, the TiO2@Au nanofibers show outstanding dielectric energy storage boosting capability. Specifically, with merely introducing 0.1 wt.% TiO2@Au nanofillers, the TiO2@Au/PVDF composite exhibits a substantially enhanced breakdown strength of 749 MV m(-1), which reaches 152.8% of PVDF. Meanwhile, a high dielectric constant of 10.2 (114.1% of PVDF) is obtained. Consequently, an ultrahigh energy density of 18.6 J cm(-3), which is 250.1% of PVDF, is achieved. It is further revealed that the significant energy storage boosting effect is originated from the Coulomb blockade and micro-capacitor effects of the TiO2@Au nanofibers. This work establishes a unique paradigm for the facile preparation of core-shell nanomaterials, which have huge potential for both dielectric energy storage and other functional nanocomposites.
关键词	breakdown strength core-shell nanofibers coulomb blockade energy storage polymer dielectrics
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001193635600001
出版者	WILEY-V C H VERLAG GMBH
ESI学科分类	MATERIALS SCIENCE
来源库	Web of Science
引用统计	被引频次[WOS]：8
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/788539
专题	工学院_材料科学与工程系
作者单位	1.Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China 3.Shanghai Maritime Univ, Coll Ocean Sci & Engn, Shanghai 201306, Peoples R China
通讯作者单位	材料科学与工程系
推荐引用方式 GB/T 7714	Ren, Zengliang,Shi, Zhicheng,Tang, Qingyang,et al. Core-shell TiO₂@Au Nanofibers Derived from a Unique Physical Coating Strategy for Excellent Capacitive Energy Storage Nanocomposites[J]. ADVANCED FUNCTIONAL MATERIALS,2024.
APA	Ren, Zengliang.,Shi, Zhicheng.,Tang, Qingyang.,Xia, Shuimiao.,Sun, Liang.,...&Wang, Hong.(2024).Core-shell TiO₂@Au Nanofibers Derived from a Unique Physical Coating Strategy for Excellent Capacitive Energy Storage Nanocomposites.ADVANCED FUNCTIONAL MATERIALS.
MLA	Ren, Zengliang,et al."Core-shell TiO₂@Au Nanofibers Derived from a Unique Physical Coating Strategy for Excellent Capacitive Energy Storage Nanocomposites".ADVANCED FUNCTIONAL MATERIALS (2024).