Synthesis and electrochemical performance of an electroactive nitrogen-doping SnO₂ nanoarray supported on carbon fiber

An electroactive nitrogen-doping tin dioxide nanorod array (N-SnO 2 NRA) is designed as an effective energy-storage electrode material for supercapacitor applications. N-SnO supported on a carbon fiber substrate prepared using SnCl 4 precursor through hydrolysis, hydrothermal growth, and NH 3 -nitriding process. Electroactive formed by N-doping reaction between Sn(OH) , revealing high level of 12.5% in . /carbon reveals lower ohmic resistance charge transfer than SnO fiber, which consistent with its higher current response voltage drop electrochemical measurements. NRA has independent nanoarray structure small side length quadrangular nanorod, contributing to more accessible interspace, reactive sites, feasible electrolyte ion diffusion. The shows specific capacitance (105.4 F g −1 at 0.5 A ) rate retention (45.0% from 5 (58.6 38.4%). Significantly, the cycling after 2000 cycles increases 78.1% 98.8% presenting superior stability. maintains stable power working output 1.6 V. decreases 75.2 55.1 when density 1 10 corresponding energy 24.23 9.81 Wh kg reasonable capability. So, demonstrates performance