• 文献标题:   Smart and designable graphene-SiO2 nanocomposites with multifunctional applications in silicone elastomers and polyaniline supercapacitors
  • 文献类型:   Article
  • 作  者:   WANG HL, LIU RS, YANG C, HAO QL, WANG X, GONG K, WU JR, HU YQ, LI ZF, JIANG JX
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Hangzhou Normal Univ
  • 被引频次:   2
  • DOI:   10.1039/c7ra00262a
  • 出版年:   2017

▎ 摘  要

A novel method was developed to promote the multifunctional applications of chemically reduced graphene (rGE) in silicone elastomers (SE) and polyaniline (PANI)-based supercapacitors via the integration of SiO2. With the help of SiO2, the surface status of rGE can be designed according to actual needs and the generated rGE-SiO2 (rGES) showed various microstructures including lamellar, dendritic and sandwich-like shapes. The microstructures of rGES played a decisive role in the final functions of rGES-based polymer nanocomposites, which were better than the rGE-based polymer matrixes. Generally, lamellar rGES retained and stimulated the advantages of rGE, and the rGES-integrated PANI electrode (rGESP) showed better specific capacitance (555 F g(-1)) and cycling life (91%) than the rGE-integrated PANI electrode (381 F g(-1) and 79%). Sandwich-like rGES promoted the mechanical performances of SE, and the values of rGES/SE (rGESSE) are ten times higher than those of rGE/SE, from 0.4 MPa to more than 7 MPa for the tensile strength and from 0.28 MPa to 3.7 MPa for the tensile modulus. Thus, the fabricated rGES is smart and designable, displaying multiple functions and applications.