期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 41, 页码 35775-35784出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b09005
关键词
supercapacitors; manganese molybdate; carbon nanotubes; graphene oxide; nickel foam
资金
- National Natural Science Foundation of China [51302122, 51572118]
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University [LZUMMM2016010]
- Fundamental Research Funds for the Central Universities [lzujbky-2016-127, lzujbky-2016-133]
- National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China in Lanzhou University
Rationally designed conductive hierarchical nanostructures are highly desirable for supporting pseudocapacitive materials to achieve high-performance electrodes for supercapacitors. Herein, manganese molybdate nanosheets were hydrotherinally grown with graphene oxide (GO) on three-dimensional nickel foam-supported carbon nanotube structures. Under the optimal graphene oxide concentration, the obtained carbon nanotubes/reduced graphene oxide/MnMoO4 composites (Cl\TTAGO/MtiMoO(4)) as binder-free supercapacitor cathodes perfbrm with a high specific capacitance of 2374.9 F g(-1) at the scan rate of 2 mV s(-1) and good long-term stability (97.1% of the initial specific capacitance can be maintained after 3000 charge/discharge cycles). The asymmetric device with CNT/rGO/MnMoO4 as the cathode electrode and the carbon nanotubes/activated carbon on nickel foam (CNT-AC) as the anode :electrode can deliver an energy density of 59.4 Wh kg(-1) at the power density of 1367.9 W kg(-1). These superior performances on be attributed to the synergistic effects from each component of the composite electrodes: highly pseudocapacitive MnMoO4 nanosheets and three-dimensional conductive Ni foam/CNTs/rGO networks. These results suggest that the fabricated asymmetric supercapacitor can be a promising candidate for energy storage devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据