Umer Aziz
Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Pakistan
Title: Hierarchically porous manganese based metal-organic-framework for potential battery-supercapacitor applications
Biography
Biography: Umer Aziz
Abstract
The application of nontoxic Metal-Organic-Frameworks (MOFs) has recently obtained ground in batteries, hybrid supercapacitor and water splitting. Here, we prepared unprecedented Manganese based MOF (Trimesic acid used as linker) via hydrothermal approach to scrutinize their electrochemical properties. A three electrode setup was developed in which the Mn MOF revealed remarkable specific capacity of 1569.24 C g-1 at 3.6 A g-1 with long lasting capacity retention. Furthermore, a hybrid device was fabricated in such a way that the Mn MOF and activated carbon was functionalized as positive and negative electrodes, respectively. The constructed Mn MOF//AC device attained exceptional specific capacity, energy and power are 248.3 C/g, 60 Wh kg-1 and 2550 W kg-1, correspondingly. After 1000 galvanostatic cycles, the hybrid device results in outstanding cycling stability of 98.57% and coulombic efficiency of 96.97%. The nature of the device was validated through the Power’s law and Dunn’s model. Due to its electrochemical properties, Mn MOF//AC is a promising choice for battery-supercapacitor devices in portable electronics.