Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.



A high-performance supercapacitor based on activated carbon fibers with an optimized pore structure and oxygen-containing functional groups

Author affiliations

Abstract

Low-cost activated carbon fibers (ACFs) were prepared from polyacrylonitrile-based precursor fibers abandoned by local factories via carbonization and CO2 activation. Oxygen-containing functional groups were introduced on the ACF surface via nitric acid and thermal treatment. ACFs with optimized pore structures and oxygen-containing functional groups display a remarkable capacitance of 214 F g−1 at a current density of 0.5 mA cm−2 and present an excellent cycling performance with a capacity retention of almost 100% over 3000 cycles. Moreover, the rate capability gains a significant improvement due to the existence of functional groups. The superb electrochemical performance of these materials provides a template of how to better engineer the ACFs' pore architecture and surface modifications to design enhanced electrode materials for high-performance supercapacitors.

Graphical abstract: A high-performance supercapacitor based on activated carbon fibers with an optimized pore structure and oxygen-containing functional groups

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 01 Sep 2016, accepted on 23 Nov 2016 and first published on 14 Dec 2016


Article type: Research Article
DOI: 10.1039/C6QM00196C
Citation: Mater. Chem. Front., 2017, Advance Article
  •   Request permissions

    A high-performance supercapacitor based on activated carbon fibers with an optimized pore structure and oxygen-containing functional groups

    K. Zhu, Y. Wang, J. A. Tang, S. Guo, Z. Gao, Y. Wei, G. Chen and Y. Gao, Mater. Chem. Front., 2017, Advance Article , DOI: 10.1039/C6QM00196C

Search articles by author