کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5432660 | 1508836 | 2017 | 8 صفحه PDF | دانلود رایگان |
- A novel synthesis of HPCs from interpenetrating polymer networks (IPNs) was reported.
- Zinc tartrate was introduced into IPNs to generate uniform mesopores and abundant micropores.
- HPCs with a high surface area of 1371Â m2Â gâ1 show 283Â FÂ gâ1Â at 1.0Â AÂ gâ1 in KOH electrolyte.
- HPC electrode shows excellent electrochemical stability up to 10000 cycles.
A novel strategy for the synthesis of hierarchical porous carbons (HPCs) from interpenetrating polymer networks (IPNs) for advanced supercapacitor electrodes was reported. There is hydrogen-bonding interaction between resorcinol/formaldehyde (R/F) resol and zinc tartrate, and they were introduced into the inter space of sodium polyacrylate (PAAS) to form IPNs. HPCs with foam-like macropores, uniform mesopores (â¼3.8Â nm), and abundant micropores were fabricated by direct carbonization of the IPNs. The macropores come from the pyrolysis of PAAS, and the uniform mesopores are ascribed to the synergistic effect of PAAS and zinc tartrate, while the decomposition of IPNs and zinc tartrate and the carbothermal reduction process generate abundant micropores. The resultant HPCs with a high specific surface area up to 1371Â m2Â gâ1 as a supercapacitor electrode exhibit a high specific capacitance of 283Â FÂ gâ1Â at 1.0Â AÂ gâ1. Besides, the electrode shows high rate capability in which a high current density of 20Â AÂ gâ1 for charge/discharge operation is available (182Â FÂ gâ1). Moreover, HPC-1.5 electrode shows excellent electrochemical stability up to 10000 cycles at 2.0Â AÂ gâ1 with 95.86% retention. This finding highlights new opportunities for well-structured porous carbons derived from IPNs to achieve advanced supercapacitor devices.
Hierarchical porous carbons with foam-like macropores, ordered mesopores and abundant micropores were developed from interpenetrating polymer networks to achieve advanced supercapacitor application.255
Journal: Carbon - Volume 111, January 2017, Pages 667-674