Lamellar-structured biomass-derived phosphorus- and nitrogen-co-doped porous carbon for high-performance supercapacitors

Jie Wang, Laifa Shen, Yunling Xu, Hui Dou, Xiaogang Zhang

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

As electrical energy storage and delivery devices, carbon-based supercapacitors have attracted much attention for advancing the energy-efficient economy. It is important to develop a facile, low-cost and environmentally friendly method of producing novel carbon materials. In this study, we report a scalable synthesis of phosphorus- and nitrogen-co-doped porous carbons using lamellar-structured fish scale. The special lamellar structure of fish scale allows the production of porous carbons with large specific surface areas (up to 1300 m2 g-1) and a high level of mesoporosity. Their inherent organic composition could be adapted with abundant N and P functional groups on the final carbons. Their high levels of porosity and rich surface functionality permit the carbons to exhibit excellent electrochemical performance as electrode materials for supercapacitors. The energy densities of supercapacitors approach 11.7 and 33.1 W h kg-1 in aqueous and IL electrolytes, respectively.

Original languageEnglish
Pages (from-to)9497-9503
Number of pages7
JournalNew Journal of Chemistry
Volume39
Issue number12
DOIs
Publication statusPublished - 2015 Sep 23
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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