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SWCNTs/phthalocyanine polymer composite derived nitrogen self-doped graphene-like carbon for high-performance supercapacitors electrodes.
- Source :
-
Materials Chemistry & Physics . Feb2022, Vol. 277, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Advanced carbon with great surface properties and structural features has been regarded as the valuable electrodes materials of high-performance supercapacitors. Herein, the SWCNTs/phthalocyanine polymer composite derived self-nitrogen-doped graphene-like porous carbon (SPCM) are synthesized via a simple solution blending and mechanical stirring. Because of the π-π interaction between metal-free phthalocyanine polymer and SWCNTs at the interface, the phthalocyanine polymer grows along the framework of the SWCNTs, resulting in the phthalocyanine polymer is pyrolyzed to form a graphene -like layered structure. In addition, the phthalocyanine polymer has the intrinsic characteristics of nitrogen-rich, thus the SPCM obtained pyridinic-N, pyrrolic-N, and graphitic-N functional groups derived from self-nitrogen-doping, which contribute to the increased electronic conductivity and surface electrochemically active sites of SPCM. Finally, the SPCM as electrode show an ultrahigh specific capacitance of 228 F g−1 at 1 A g−1 and excellent stability (retaining 93% of the capacitance after 2000 cycles). • Composite carbon materials are fabricated via a simple solution blending and mechanical stirring. • The composite exhibits a sheet-like structure similar to graphene because of the π-π interaction. • The composite shows an excellent specific surface area of 592.7 m2 g−1 and outstanding supercapacitor performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02540584
- Volume :
- 277
- Database :
- Academic Search Index
- Journal :
- Materials Chemistry & Physics
- Publication Type :
- Academic Journal
- Accession number :
- 154593247
- Full Text :
- https://doi.org/10.1016/j.matchemphys.2021.125433