Jump to main content
Jump to site search


Eco-Friendly Fabricated Nonporous Carbon Nanofibers with High Volumetric Capacitance: Improving Rate Performance by Tri-Dopants of Nitrogen, Phosphorus, and Silicon

Abstract

The research for high volumetric capacitance, high rate performance and low-cost electrode materials for supercapacitors is still a significant challenge. Among the various promising candidates, carbon nanofibers (CNFs) with heteroatom functionalization have attracted increasing attention. Herein, a kind of nonporous CNFs combining heteroatom functionalization strategy is proposed for high performance supercapacitor electrodes. Tri-heteroatom functionalization of nonporous carbon nanofibers are synthesized by tetraethyl orthosilicate (TEOS) and phosphorus (H3PO4) activation of polyacrylonitrile (PAN) through electrospinning and subsequent thermal treatment process. The optimal electrode material shows a high gravimetric capacitance of 243.7 F g-1 at 0.5 A g-1, superior rate capability with ≈83 % retention at rate from 0.5 A g-1 to 30 A g-1 and excellent long cycle stability (capacitance retention rate >100% after 8000 cycles at a high current density of 30 A g-1). It worth noting that the nonporous CNFs possess high packing density, which presents a maximum volumetric capacitance of 253.4 F/cm3 at 0.5 A g-1 and 209 F/cm3 at 30 A g-1. The current synthetic strategy of preparing nonporous carbon architectures with multi-heteroatom doping offers an eco-friendly, feasible, and cost-effective way for constructing high-performance electrode materials employed in supercapacitors.

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Aug 2017, accepted on 10 Oct 2017 and first published on 11 Oct 2017


Article type: Research Article
DOI: 10.1039/C7QI00517B
Citation: Inorg. Chem. Front., 2017, Accepted Manuscript
  •   Request permissions

    Eco-Friendly Fabricated Nonporous Carbon Nanofibers with High Volumetric Capacitance: Improving Rate Performance by Tri-Dopants of Nitrogen, Phosphorus, and Silicon

    Y. Yang, X. hou, C. Ding, J. Lan, Y. Yu and X. Yang, Inorg. Chem. Front., 2017, Accepted Manuscript , DOI: 10.1039/C7QI00517B

Search articles by author

Spotlight

Advertisements