Growth of manganese oxide nanoflowers on vertically-aligned carbon nanotube arrays for high-rate electrochemical capacitive energy storage.
Manganese 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.
Zhang
Hao
H
Research Institute of Chemical Defense, West building, No. 35 Huayuanbei Road, Beijing 100083, China.
Cao
Gaoping
G
Wang
Zhiyong
Z
Yang
Yusheng
Y
Shi
Zujin
Z
Gu
Zhennan
Z