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ÕÒÁ˼¸Æª²ÉÓþ²µç·ÄË¿ÖÆ±¸³¬¼¶µçÈݵÄÎÄÏ×£¬¸÷ÓÐÌØÉ«£¬¸ø´ó¼Ò·ÖÏíһϠMnO2/carbon nanotubes (CNTs)¨Cembedded carbon nanofibers (CNFs) nanocomposites (MnO2/CNTs¨CCNFs) have been prepared using electrospinning and in situ redox deposition technique. The as-prepared nanocomposites were directly employed as freestanding electrodes to evaluate the electrochemical properties. Results showed that the nanoscopic MnO2 deposits were incorporated uniformly into the CNTs¨Cembedded CNFs network structure, which hold a great promise for high-performance supercapacitor applications. Compared to the pure CNFs substrate, the improved electric conductivity of CNTs¨Cembedded CNFs substrate enabled a better utilization of MnO2 coating, thus resulting in higher specific capacitance (374 F/g) and better rate capability (53.4%). Excellent capacitance retention of 94% of the initial capacitance after 1000 cycles was achieved on the freestanding MnO2/CNTs¨CCNFs nanocomposites electrode. The specific capacitance was found to increase significantly with the increase in the electrolyte temperature, which offered an insight into the practical supercapacitor applications. |
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±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æÈ¨ÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺xiaomuchong@tal.com - ¸½¼þ 1 : Highly_conductive_electrospun_carbon_nanofiberMnO2_coaxial_nano-cables_for.pdf
- ¸½¼þ 2 : Incorporation_of_nanostructured_manganese_dioxide_into_carbon_nanofibers_and_its.pdf
- ¸½¼þ 3 : Synthesis_and_electrochemical_performance_of_MnO2CNTs¨Cembedded_carbon.pdf
2013-10-26 14:18:42, 1.08 M
2013-10-26 14:18:49, 1.12 M
2013-10-26 14:18:59, 1.95 M
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