Chen, C., Zhang, N., Liu, X., He, Y., Wan, H., Liang, B., Ma, R., Pan, A. and Roy, V. A.L. (2016) Polypyrrole-modified NH4NiPO4·H2O nanoplate arrays on Ni foam for efficient electrode in electrochemical capacitors. ACS Sustainable Chemistry and Engineering, 4(10), pp. 5578-5584. (doi: 10.1021/acssuschemeng.6b01347)
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Abstract
The growth of active materials on Ni foam was proved to be an effective strategy to enhance redox reactions for electrochemical capacitors. But for NH4NiPO4·H2O materials, a uniform nanostructure on Ni foam has not been achieved. Here, the NH4NiPO4·H2O nanoplate arrays on Ni foam are fabricated by a facile solvothermal method. To further promote the transitions of current carries and benefit the electrochemical reactions, the surfaces of NH4NiPO4·H2O nanoplate arrays were modified by a thin layer of polypyrrole through an in situ chemical polymerization method. The polypyrrole-modified NH4NiPO4·H2O nanoplate arrays on Ni foam showed much enhanced specific capacitance in comparison with the bare NH4NiPO4·H2O nanoplate arrays. When employing polypyrrole-modified NH4NiPO4·H2O/Ni foam as a positive electrode and activated carbon as a negative electrode to assemble the asymmetric supercapacitor cells, favorable capacitance and cycling ability were achieved. Such a fabrication provides a feasible method to construct efficient electrodes for sustainable electrochemical energy storage.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Vellaisamy, Professor Roy |
| Authors: | Chen, C., Zhang, N., Liu, X., He, Y., Wan, H., Liang, B., Ma, R., Pan, A., and Roy, V. A.L. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | ACS Sustainable Chemistry and Engineering |
| Publisher: | American Chemical Society |
| ISSN: | 2168-0485 |
| ISSN (Online): | 2168-0485 |
| Published Online: | 09 September 2016 |
| Related URLs: |
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