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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12662
Title: Cost effective urea combustion derived mesoporous-Li2MnSiO4 as a novel material for supercapacitors
Authors: Chaturvedi P.
Kumar A.
Sil A.
Sharma Y.
Published in: RSC Advances
Abstract: Mesoporous-Li2MnSiO4 (LMS) having a surface area of 35 (±2) m2 g-1 is produced using a very simple, fast and cost effective urea combustion method for the first time and characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy and surface area analysis. Li2MnSiO4 is crystallized in the orthorhombic phase with space group-Pmn21. The lattice parameters: a = 6.317(10) Ã…, b = 5.385(9) Ã…, c = 4.988(8) Ã… are calculated by the Rietveld method. The urea combustion derived LMS is found to be thermally stable till 600 °C in air and thereafter disintegrates into Li2SiO3 (orthorhombic) and MnO2 (cubic). The presence of a homogeneous mesoporous (<20 nm) framework with a high surface area shows orthorhombic Li2MnSiO4 to be promising as a novel supercapacitor electrode as it delivers a specific capacitance of 175 (±5) F g-1 at 3 mV s-1 in 2 M KOH solution. The supercapacitive performance was further examined by galvanostatic charge-discharge cycling and complimented by electrochemical impedance spectroscopy. This journal is © The Royal Society of Chemistry 2015.
Citation: RSC Advances (2015), 5(32): 25156-25163
URI: https://doi.org/10.1039/c5ra02207j
http://repository.iitr.ac.in/handle/123456789/12662
Issue Date: 2015
Publisher: Royal Society of Chemistry
ISSN: 20462069
Author Scopus IDs: 56556144400
57206266783
7003754102
7103066055
Author Affiliations: Chaturvedi, P., Energy Storage Laboratory, Department of Applied Science and Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
Kumar, A., Energy Storage Laboratory, Department of Applied Science and Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
Sil, A., Departmant of Metallurgical and Materials Engineering, IIT Roorkee, Roorkee, 247667, India
Sharma, Y., Energy Storage Laboratory, Department of Applied Science and Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
Corresponding Author: Sharma, Y.; Energy Storage Laboratory, Department of Applied Science and Engineering, IIT Roorkee Saharanpur CampusIndia
Appears in Collections:Journal Publications [MT]

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