Core-shell structured BaTiO3@carbon hybrid particles for polymer composites with enhanced dielectric performance

被引：92
作者：
Feng, Y. [1 ,2 ]
Li, W. L. [1 ,3 ]
Wang, J. P. [1 ]
Yin, J. H. [2 ]
Fei, W. D. [1 ,4 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Harbin Univ Sci & Technol, Key Lab Engn Dielect & Its Applicat, Minist Educ, Harbin 150080, Peoples R China
[3] Harbin Inst Technol, Natl Key Lab Sci & Technol Precis Heat Proc Met, Harbin 150001, Peoples R China
[4] Harbin Inst Technol, Sch Mat Sci & Engn, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 40期
关键词：
LOW PERCOLATION-THRESHOLD; CHEMICAL-VAPOR-DEPOSITION; ALIGNED CARBON NANOTUBES; ENERGY-STORAGE; ELECTRICAL-PROPERTIES; HIGH-PERMITTIVITY; POLY(VINYLIDENE FLUORIDE); NANOCOMPOSITE CAPACITORS; 3-PHASE NANOCOMPOSITES; SURFACE-MORPHOLOGY;
D O I：
10.1039/c5ta04777c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Core-shell structured BaTiO3@carbon (BT@C) hybrid particles were fabricated via chemical vapor deposition (CVD). Scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Raman spectroscopy were carried out to confirm the successful fabrication. In order to research the effect of BT@C hybrid particles on the dielectric performance of polymer composites, PVDF-HFP/BT@C composites were prepared. With the increase of the volume fraction of BT@C, the dielectric constant of composites remarkably increased. The dielectric constant of the composite with 30 vol% BT@C is 1044 at 1 kHz, which is 118 times higher than that of PVDF-HFP (8.8). The experimental results fit well with the percolation theory. The energy storage density of all composites is larger than that of pure PVDF-HFP. The influence of the carbon-shell on the dielectric properties of composites is discussed and analyzed. The enhanced dielectric properties are attributed to the increased interfacial polarization in the carbon-shell. These attractive fabrication methods of BT@C and features of PVDF-HFP/BT@C composites suggest that the method proposed herein is a new approach for developing high performance composites.
引用
收藏
页码：20313 / 20321
页数：9
相关论文
共 58 条
[21]   Core-Shell Structured High-k Polymer Nanocomposites for Energy Storage and Dielectric Applications [J].
Huang, Xingyi ;
Jiang, Pingkai .
ADVANCED MATERIALS, 2015, 27 (03) :546-554
[22]   Role of Interface in Highly Filled Epoxy/BaTiO3 Nanocomposites. Part I-Correlation between Nanoparticle Surface Chemistry and Nanocomposite Dielectric Property [J].
Huang, Xingyi ;
Xie, Liyuan ;
Yang, Ke ;
Wu, Chao ;
Jiang, Pingkai ;
Li, Shengtao ;
Wu, Shuang ;
Tatsumi, Kohei ;
Tanaka, Toshikatsu .
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2014, 21 (02) :467-479
[23]   Thermal stability of graphite oxide [J].
Jeong, Hae-Kyung ;
Lee, Yun Pyo ;
Jin, Mei Hua ;
Kim, Eun Sung ;
Bae, Jung Jun ;
Lee, Young Hee .
CHEMICAL PHYSICS LETTERS, 2009, 470 (4-6) :255-258
[24]   Broad-frequency dielectric behaviors in multiwalled carbon nanotube/rubber nanocomposites [J].
Jiang, Mei-Juan ;
Dang, Zhi-Min ;
Bozlar, Michael ;
Miomandre, Fabien ;
Bai, Jinbo .
JOURNAL OF APPLIED PHYSICS, 2009, 106 (08)
[25]   Raman spectra of graphite oxide and functionalized graphene sheets [J].
Kudin, Konstantin N. ;
Ozbas, Bulent ;
Schniepp, Hannes C. ;
Prud'homme, Robert K. ;
Aksay, Ilhan A. ;
Car, Roberto .
NANO LETTERS, 2008, 8 (01) :36-41
[26]   Nanocomposites of Ferroelectric Polymers with TiO2 Nanoparticles Exhibiting Significantly Enhanced Electrical Energy Density [J].
Li, Junjun ;
Seok, Sang Il ;
Chu, Boojin ;
Dogan, Fatih ;
Zhang, Qiming ;
Wang, Qing .
ADVANCED MATERIALS, 2009, 21 (02) :217-221
[27]   Large dielectric constant of the chemically functionalized carbon nanotube/polymer composites [J].
Li, Qun ;
Xue, Qingzhong ;
Hao, Lanzhong ;
Gao, Xili ;
Zheng, Qingbin .
COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (10-11) :2290-2296
[28]   Large Dielectric Constant and High Thermal Conductivity in Poly(vinylidene fluoride)/Barium Titanate/Silicon Carbide Three-Phase Nanocomposites [J].
Li, Yong ;
Huang, Xingyi ;
Hu, Zhiwei ;
Jiang, Pingkai ;
Li, Shengtao ;
Tanaka, Toshikatsu .
ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (11) :4396-4403
[29]   Dielectric behavior of a metal-polymer composite with low percolation threshold [J].
Li, Yun-Jia ;
Xu, Man ;
Feng, Jun-Qiang ;
Dang, Zhi-Min .
APPLIED PHYSICS LETTERS, 2006, 89 (07)
[30]   Uniform diameter multi-walled carbon nanotubes with a controlled wall number obtained by a simple chemical vapor deposition method [J].
Lin, Youqin ;
Dichiara, Anthony ;
He, Delong ;
Haghi-Ashtiani, Paul ;
Bai, Jinbo .
CHEMICAL PHYSICS LETTERS, 2012, 554 :137-142
123456