TY - JOUR A1 - Zhang, Shengming A1 - Wang, Xuhui A1 - Li, Yan A1 - Mu, Xuemei A1 - Zhang, Yaxiong A1 - Du, Jingwei A1 - Liu, Guo A1 - Hua, Xiaohui A1 - Sheng, Yingzhuo A1 - Xie, Erqing A1 - Zhang, Zhenxing T1 - Facile synthesis of carbon nanotube-supported NiO//Fe2O3 for all-solid-state supercapacitors JF - Beilstein Journal of Nanotechnology PY - 2019/// VL - 10 SP - 1923 EP - 1932 SN - 2190-4286 DO - 10.3762/bjnano.10.188 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.10.188 KW - aqueous reduction KW - carbon nanotubes KW - iron oxide KW - nickel oxide KW - supercapacitors N2 - We have successfully prepared iron oxide and nickel oxide on carbon nanotubes on carbon cloth for the use in supercapacitors via a simple aqueous reduction method. The obtained carbon cloth–carbon nanotube@metal oxide (CC-CNT@MO) three-dimensional structures combine the high specific capacitance and rich redox sites of metal oxides with the large specific area and high electrical conductivity of carbon nanotubes. The prepared CC-CNT@Fe2O3 anode reaches a high capacity of 226 mAh·g−1 at 2 A·g−1 with a capacitance retention of 40% at 40 A·g−1. The obtained CC-CNT@NiO cathode exhibits a high capacity of 527 mAh·g−1 at 2 A·g−1 and an excellent rate capability with a capacitance retention of 78% even at 40 A·g−1. The all-solid-state asymmetric supercapacitor fabricated with these two electrodes delivers a high energy density of 63.3 Wh·kg−1 at 1.6 kW·kg−1 and retains 83% of its initial capacitance after 5000 cycles. These results demonstrate that our simple aqueous reduction method to combine CNT and metal oxides reveals an exciting future in constructing high-performance supercapacitors. ER -