Abstract
Coal based nanofibers were prepared by electrospinning a mixture of polyacrylonitrile and acid treated coal. Coal based activated carbon fibers were further obtained by carbonization and steam activation. The effects of acid treatment on raw coal were studied to explain the enhanced solubility in various solvents. The solubility of coal was as high as 6.6 wt% in N,N- dimethylformamide. The electrochemical performance of supercapacitor electrodes using coal based activated carbon fiber mats was then studied. This binder-free electrode showed a specific capacitance of 230 F g-1 at a current density of 1 A g-1 and an excellent capacity retention of 97% after 1000 cycles. © 2014 the Partner Organisations.
| Original language | English |
|---|---|
| Pages (from-to) | 9338-9344 |
| Journal | Journal of Materials Chemistry A |
| Volume | 2 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 28 Jun 2014 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.Funding
This work is supported by the Xinjiang Autonomous Region Major Projects (no. 201130113-1) and the National Science Foundation of China (no. U1203292).