TY - JOUR
T1 - Strawberry-like carbonized cotton Cloth@Polyaniline nanocomposite for high-performance symmetric supercapacitors
AU - Hong, Xiaodong
AU - Fu, Jiawei
AU - Liu, Yue
AU - Li, Shunli
AU - Liang, Bing
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/1/15
Y1 - 2021/1/15
N2 - In order to control the microstructure of polyaniline (PANI) and enhance the interfacial bonding between PANI and carbon substrate, a vacuum infiltration method is put forward to prepare functionalized carbonized cotton cloth (FCC)@PANI nanocomposite. In which, FCC is soaked in dilute PANI solution under vacuum to achieve the permeation adsorption of PANI. After the solvent evaporated, strawberry-like FCC@PANI nanocomposite is produced with PANI nanoparticles embedding on the fiber surface. This novel method effectively avoids the generation of PANI nanofibers and their agglomeration, even at a high PANI loading of 28.1 wt%. Serving as electrodes in symmetric supercapacitors, the optimum FCC@PANI composite exhibits the maximum capacitance of 350.8 F g−1 (1859.2 mF cm−2) at 1 A g−1, and a high capacitance retention of 90.8% for 10,000 cycles. The performance is much better than that of optimized FCC/PANI composite synthesized by in-situ polymerization, due to the low internal resistance, fast transfer of electrons/ions and a strong interfacial bonding interaction. In view of the easy operation and scalability, vacuum infiltration method has a promising prospect for preparing carbon fabrics/PANI composite electrodes in large scale.
AB - In order to control the microstructure of polyaniline (PANI) and enhance the interfacial bonding between PANI and carbon substrate, a vacuum infiltration method is put forward to prepare functionalized carbonized cotton cloth (FCC)@PANI nanocomposite. In which, FCC is soaked in dilute PANI solution under vacuum to achieve the permeation adsorption of PANI. After the solvent evaporated, strawberry-like FCC@PANI nanocomposite is produced with PANI nanoparticles embedding on the fiber surface. This novel method effectively avoids the generation of PANI nanofibers and their agglomeration, even at a high PANI loading of 28.1 wt%. Serving as electrodes in symmetric supercapacitors, the optimum FCC@PANI composite exhibits the maximum capacitance of 350.8 F g−1 (1859.2 mF cm−2) at 1 A g−1, and a high capacitance retention of 90.8% for 10,000 cycles. The performance is much better than that of optimized FCC/PANI composite synthesized by in-situ polymerization, due to the low internal resistance, fast transfer of electrons/ions and a strong interfacial bonding interaction. In view of the easy operation and scalability, vacuum infiltration method has a promising prospect for preparing carbon fabrics/PANI composite electrodes in large scale.
KW - Functionalized carbon cloth
KW - Polyaniline
KW - Supercapacitor
KW - Vacuum infiltration method
UR - http://www.scopus.com/inward/record.url?scp=85094324608&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2020.123999
DO - 10.1016/j.matchemphys.2020.123999
M3 - Article
AN - SCOPUS:85094324608
SN - 0254-0584
VL - 258
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 123999
ER -