Energy storage nanoarchitectonics of La2W2O9 porous microspheres for advanced supercapacitive performance

Abstract

Lanthanum tungsten oxide (La2W2O9 or LWO), a novel supercapacitor material, in the form of porous microspheres (PMS), a material that hasn't been investigated for use in energy storage before. We demonstrate LWO's electrochemical functionality. It has promising energy storage capabilities thanks to PMS. The substance is permeable. A large platform for charge storage and quick ion transport is provided by microstructure. Galvanostatic and cyclic voltammetry are two methods for evaluating the performance of electrochemical systems. Charge-discharge measurements and electrochemical impedance spectroscopy experiments provided the information. Low charge transfer resistance and pseudocapacitive behavior in LWO PMS. The content had a significant specific capacitance of 178 F/g at a current density of 1 A/g, and even at a current density ten times greater, it still retained 72% of its capacitance. Its potential for long-term energy storage applications was also highlighted by the electrode material's outstanding cycling stability over 5000 charge/discharge cycles. Our results imply that the development of high-performance supercapacitors, which are crucial for the creation of effective and environmentally friendly energy storage systems, is made possible by LWO PMS.