Electrospun porous MnMoO 4 nanotubes as high-performance electrodes for asymmetric supercapacitors

摘要: MnMoO4 nanotubes of diameter about 120 nm were successfully synthesized by a single-spinneret electrospinning technique followed calcination in air, and their structural, morphological, electrochemical properties studied with the aim to fabricate high-performance supercapacitor devices. The obtained display 1D architecture porous structure hollow interiors. Benefiting from intriguing structural features, unique nanotube electrodes exhibit high specific capacitance, excellent rate capability, cycling stability. As an example, tube-like delivers capacitance 620 F g−1 at current density 1 A g−1, 460 F g−1 even very 60 A g−1. Remarkably, almost no decay is found after continuous charge/discharge for 10,000 cycles 1 A g−1. An asymmetric fabricated this activated carbon displayed maximum energy 31.7 Wh kg−1 power 797 W kg−1, demonstrating good prospect practical applications storage electronics.