Abstract
Binary metal oxides composed of molybdenum–vanadium oxides are promising candidates for supercapacitors. Here, we report the synthesis of one-dimensional V0.13Mo0.87O2.935 nanowires through a facile one-step hydrothermal method. This nanowire presented a high specific capacitance of 394.6 F g−1 (1 mV s−1) as an electrode applied to the supercapacitor. Importantly, this electrode showed a perfect rate capability of 91.5% (2 to 10 A g−1) and a continuous verified outstanding cyclic voltammetry of 97.6% after 10,000 cycles. These superior electrochemical properties make the synthesized V0.13Mo0.87O2.935 nanowires a prospective candidate for high-performance supercapacitors.
Highlights
Due to overconsumption of non-renewable resources and the growing threat of global warming, reliable and clean energy supplies, such as the secondary battery and supercapacitor (SC) science and technology, are in urgent need of a breakthrough (Liu et al, 2016; Salanne et al, 2016; Liu M. et al, 2018; Liang et al, 2019)
SCs are becoming more appealing than ever because of their rapid recharge capabilities, high power density, and durable life cycles (Salanne et al, 2016; Du et al, 2018; Kirubasankar et al, 2018; Ho and Lin, 2019; Le et al, 2019; Ma et al, 2019; Yang L. et al, 2019). It is well-established that three main electrode materials include conducting polymer, transition metal oxide, and carbon materials (Jabeen et al, 2016a,b; Chen et al, 2017; Li et al, 2018; Idrees et al, 2019)
Transition metal oxides can increase the efficiency and improve the specific capacitances compared to conducting polymers and carbon materials (Yang et al, 2015; Fu et al, 2016; Qin et al, 2016a,b; Meng et al, 2017; An and Cheng, 2018)
Summary
Due to overconsumption of non-renewable resources and the growing threat of global warming, reliable and clean energy supplies, such as the secondary battery and supercapacitor (SC) science and technology, are in urgent need of a breakthrough (Liu et al, 2016; Salanne et al, 2016; Liu M. et al, 2018; Liang et al, 2019). One-dimensional V0.13Mo0.87O2.935 nanowires have been prepared and applied as a high-performance SC electrode material.
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