Growth of Manganese Oxide Nanoflowers on Vertically-Aligned Carbon Nanotube Arrays for High-Rate Electrochemical Capacitive Energy Storage
2008; American Chemical Society; Volume: 8; Issue: 9 Linguagem: Inglês
10.1021/nl800925j
ISSN1530-6992
AutoresHao Zhang, Gaoping Cao, Zhiyong Wang, Yusheng Yang, Zujin Shi, Zhennan Gu,
Tópico(s)Advancements in Battery Materials
ResumoManganese oxide nanoflower/carbon nanotube array (CNTA) composite electrodes with hierarchical porous structure, large surface area, and superior conductivity was controllable prepared by combining electrodeposition technique and a vertically aligned CNTA framework. This binder-free manganese oxide/CNTA electrode presents excellent rate capability (50.8% capacity retention at 77 A/g), high capacitance (199 F/g and 305 F/cm (3)), and long cycle life (3% capacity loss after 20,000 charge/discharge cycles), with strong promise for high-rate electrochemical capacitive energy storage applications.
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