Abstract
Designing of hetero-atomic doped carbon-based systems through pyrolysis of abundant element organic precursors is a novel approach to construct rational porous carbon materials.Herein,a highly-cross-linked triazine polymer is employed to fabricate N,P co-doped porous carbon(A-TDP-12)with tunable active ni-trogen in the carbon framework for simultaneous enhancement of CO2 capture capability and Supercapac-itance(SC).The synthesized A-TDP-12 possesses a typical hierarchically porous framework(micro-pores and meso-pores)with a large surface area(1332 m2 g-1)and a rich content of N(7.89 at.％)and P(0.74 at.％).It delivers a CO2 adsorption capacity of 1.52 and 5.68 mmol g-1 at 1 and 5 bar,respectively,with almost no decay after successive 8 recycles.In 6 M KOH aqueous electrolyte,A-TDP-12 exhibits a supe-rior specific capacitance of 172.7 F g-1 at a current density of 1 A g-1.Even at a high current density of 10 A g-1,80％of its initial capacity still remains.This work not only offers a novel strategy for fabricating promising adsorbents and electrodes for CO2 uptake and SCs,but also provides new insights into design of porous carbon material for related applications.
基金项目
National Natural Science Foun-dation of China(21978182)
NETL
NSTL
万方数据