Journal
RSC ADVANCES
Volume 5, Issue 81, Pages 66311-66317Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra10916g
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Funding
- National Natural Science foundation of China [51403036]
- Shanghai Education Commission [14YF1405300]
- Shanghai Education development foundation [14S10656]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [SRFDP 20130075120018]
- Fundamental Research Funds for the Central University [2232014D3-09]
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Two types of ternary composites were fabricated by reversing the deposition sequence of polyaniline (PANI) and MnO2 layers on plasma treated carbon cloth (m-CC), i.e., PANI@MnO2@m-CC and MnO2@PANI@m-CC. By comparison, PANI@MnO2@m-CC displayed a unique porous structure and possessed a better electrochemical performance than that of MnO2@PANI@m-CC. The morphological transformation of MnO2 petals into nanoparticles while anchoring PANI nanorods increases the interactions between the two pseudoactive materials. An asymmetric supercapacitor was fabricated by using PANI@MnO2@m-CC as the positive electrode and activated microwave exfoliated graphite oxide ('a-MEGO')@m-CC as the negative electrode. The asymmetric supercapacitor showed a maximum energy density of 33.9 W h kg(-1) (at a power density of 319.0 W kg(-1)) and power density of 17.2 kW kg(-1) (at an energy density of 14.3 W h kg(-1)) at an operating voltage of 2.0 V, suggesting PANI@MnO2@m-CC is a promising electrode candidate for supercapacitors.
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