|Table of Contents|

Capacitance Performance of Carbon Atom Wires Electrode for Supercapacitors(PDF)

《南京师大学报(自然科学版)》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2010年03期
Page:
61-65
Research Field:
化学
Publishing date:

Info

Title:
Capacitance Performance of Carbon Atom Wires Electrode for Supercapacitors
Author(s):
Chen Qiaoling1Xue Kuanhong2
1.College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China 2. School of Ch em istry and Environm ental S cience, Nan jing N orm alUn ivers ity, N an jing 210097, China
Keywords:
carbon atom w ires supercapac itors capacitance perform ances
PACS:
TM53
DOI:
-
Abstract:
A novel carbon m a terial nam ed carbon atom w ires( CAW ) is used fo r e lec trode m ater ia l in supercapacitors. The CAW is fabricated by the py ro lysis o f starch cata lyzed by Fe and treated by concentrated nitr ic ac id to be surface functionalized. The capac itance per fo rm ance of the trea ted- CAW e lectrode is investigated by use o f the cyc lic vo ltamm etry, ga lv anosta tic charge /d ischarge and AC im pedance me thods. The resu lts show ed that the specific capac itance o f 256 F /g o f the e lectrode is ach ieved w ith the d ischarg e current density of 0.2 A / g in the solution o f 5 mo l/L H2 SO 4. In add ition, the treated-CAW e lectrode is found to have low equivalen t ser ies resistance ( ESR) and good cyc ling stab ility.

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Last Update: 2013-04-08