hierarchical mnco2s4/nifeldh/graphene as an advanced electrode for asymmetric devices

In recent years, with the increasing concern of air pollution and the growing amount of energy consumption, there has been an urgent demand for various sustainable energy storage and convertion. supercapacitor, as one of the promising advanced energy storage devices, has attracted considerable attention because it can offer much higher charge/discharge rate than batteries, higher energy density than conventional capacitors, and long cycle life and environmental friendliness. in this work we synthesis high performance suprcapacitor based on mnco2s4 @ nifeldh.rgo as electrode novel with high performance.this electrode exhibits excellente electrochemical performance with an ultrahigh specific capacitance of 2356.7 f g-1 at 1 a g-1. this electrode has acceptable results ,which has advantages over the work done.