摘要
Developing porous carbon materials with low-cost, sustainable and eco-friendly natural resources is emerging as an ever important research field in the application of high-performance supercapacitor. In this paper, a simple synthetic method to fabricate nitrogen doped porous carbon （NPC） is developed via a one-pot carbonization of sodium alginate and urea. The as-prepared NPC annealed at 700℃ with meso- and macro-porous structure exhibits excellent specific capacitance （180.2 F/g at 1 A/g） and superior cycling life when serves as electrode materials for supercapacitor. Moreover, the investigation on the annealing temperature demonstrates that NPC pyrolysis at 700℃ possesses relatively high pyrrole nitrogen and pyridine nitrogen, which is favorable for enhancing supercapacitor performance. This work extends biomass derived carbon materials in energy storage applications.
Developing porous carbon materials with low-cost, sustainable and eco-friendly natural resources is emerging as an ever important research field in the application of high-performance supercapacitor. In this paper, a simple synthetic method to fabricate nitrogen doped porous carbon （NPC） is developed via a one-pot carbonization of sodium alginate and urea. The as-prepared NPC annealed at 700℃ with meso- and macro-porous structure exhibits excellent specific capacitance （180.2 F/g at 1 A/g） and superior cycling life when serves as electrode materials for supercapacitor. Moreover, the investigation on the annealing temperature demonstrates that NPC pyrolysis at 700℃ possesses relatively high pyrrole nitrogen and pyridine nitrogen, which is favorable for enhancing supercapacitor performance. This work extends biomass derived carbon materials in energy storage applications.
基金
supported by the National Natural Science Foundation(No.21573083)
the Program for New Century Excellent Talents in Universities of China(No.NCET-13-0237)
the Fundamental Research Funds for the Central University(Nos.2013TS136,2014YQ009)
1000 Young Talent(to Deli Wang)
initiatory financial support from Huazhong University of Science and Technology(HUST)
