Journal
JOURNAL OF POROUS MATERIALS
Volume 28, Issue 6, Pages 1999-2011Publisher
SPRINGER
DOI: 10.1007/s10934-021-01115-y
Keywords
Sodium carboxymethyl cellulose; Carbon aerogels; Polypyrrole; Supercapacitors
Funding
- Fundamental Research Funds for Central Universities [E2572017EB05]
- Heilongjiang Province outstanding youth science fund [JC201301]
Ask authors/readers for more resources
In this study, hierarchical porous magnetic activated carbon aerogel/polypyrrole composites were synthesized through a facile method, exhibiting high specific surface area and specific capacitance. The composite material shows great potential as a high-performance electrode material with outstanding electrochemical performance and long cycling stability.
In this work, hierarchical porous magnetic activated carbon aerogels (aCA)/polypyrrole (PPy) composites were synthesized by a facile and cost effective in situ oxidation polymerization. Three-dimensional (3D) interconnected porous aCA with a high specific surface area (820.1 m(2) g(-1)) was prepared by a sol-gel process via carbonization and KOH activation by using sodium carboxymethyl cellulose (CMC) and ferric trichloride as carbon precursors and cross-linking agents. The aCA served as a good skeleton for the growth of PPy particles on the surface. Via the cooperative effect of an interconnected porous network structure from aCA and the high capacitive property provided by PPy, the aCA/PPy electrode exhibited a high specific capacitance of 433 F g(-1) at a current density of 0.5 A g(-1). Moreover, it also exhibited outstanding long-period cycling performance of similar to 87.2% capacitance retention after 5,000 cycles of consecutive charge/discharge tests. Additionally, the asymmetric supercapacitor demonstrated high energy density of 2.59 W h kg(-1) at the power density of 1266 W kg(-1). This work provides a novel path for preparing aCA/PPy composites with great potential as a candidate high performance electrode material on energy storage.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available