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Carbon-encapsulated tungsten oxide nanowires as a stable and high-rate anode material for flexible asymmetric supercapacitors
- Yao, Chenzhong, Wei, Bohui, Li, Hui, Wang, Gaofeng, Han, Qiuping, Ma, Huixuan, Gong, Qiaojuan
- Journal of materials chemistry A 2016 v.5 no.1 pp. 56-61
- anodes, capacitance, carbon, chemistry, durability, encapsulation, energy, nanowires, tungsten oxide
- Herein, we report an effective carbon encapsulation strategy to boost the capacitive performance of WO₃₋ₓ nanowires as a high-energy and stable anode material for flexible asymmetric supercapacitors (ASCs). The carbon-encapsulated WO₃₋ₓ nanowires exhibited a remarkable areal capacitance of 786.8 mF cm⁻² and excellent durability. Furthermore, an ASC device with high energy and power density was also fabricated from the as-prepared carbon encapsulated WO₃₋ₓ nanowire anode.