ChemInform Abstract: Cost Effective Urea Combustion Derived Mesoporous‐Li₂MnSiO₄ as a Novel Material for Supercapacitors.

Abstract

Cost Effective Urea Combustion Derived Mesoporous-Li 2MnSiO4 as a NovelMaterial for Supercapacitors. -Mesoporous Li 2MnSiO4 (LMS) with a surface area of 35 m 2 /g is produced by urea combustion using a HNO3 solution of LiNO3, Mn(OAc)2, and Si(O-Et)4. Urea is added for gelation prior to ignition, washing, and drying in air. The compound crystallizes in the orthorhombic space group Pmn2 1 (powder XRD) and is thermally stable up to 600 C in air. The homogeneous mesoporous (<20 nm) framework reveals Li 2MnSiO4 to be a promising novel supercapacitor electrode with a specific capacitance of 175 F/g at 3 mV/s in 2M KOH. Further results are presented from galvanostatic charge-discharge cycling and electrochemical impedance spectroscopy. -(CHATURVEDI, P.; KUMAR, A.; SIL, A.; SHARMA*, Y.; RSC Adv. 5 (2015) 32, 25156-25163, http://dx.doi.org/10.1039/C5RA02207J ; Energ. Storage Lab., Dep. Appl. Sci. Eng., Saharanpur 247 001, India; Eng.) -J. Schramke 25-009