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characterizations of synthesized laser scribed graphene/molybdenum disulfide (lsg/mos2) hybrids for supercapacitor performance
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نویسنده
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vasudevan mugashini ,kanesan aiswarya ,remesh sathaniswarman ,perumal veeradasan ,raja pandian bothi ,ibrahim mohamad nasir mohamad ,karuppanan saravanan ,gopinath subash c.b. ,ovinis mark
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منبع
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journal of water and environmental nanotechnology - 2023 - دوره : 8 - شماره : 2 - صفحه:137 -150
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چکیده
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A sustainable and organic energy storage system from oil palm lignin waste-derived laser-scribed graphene embedded with molybdenum disulfide (lsg/mos2) is reported in this work. lsg/mos2 hybrids were fabricated to overcome the zero-band gap of graphene, and molybdenum disulfide restacking issues, and to induce electrical conductivity. various amounts of lsg (0.1,0.5,1.0 g) were added in a mos2 precursor to produce a nanoscale lsg/mos2 hybrid nanostructure via the hydrothermal method. the raman d, g, and 2d bands of lsg confirmed the formation of graphene from lignin. the fesem morphology of lsg/mos2 hybrids showed a porous and large surface area anchored with 3d mos2 nanoflower on lsg. tem imaging revealed mos2 decorated lsg with a lattice spacing of 0.62 and 0.27nm, corresponding to the (002) and (100) planes of mos2. in terms of electrochemical performance, lsg with 0.1g of mos2 has the lowest resistance, the highest specific capacitance of 6.7mf/cm² at 0.05 ma/cm², and excellent cyclic stability of 98.1% over 1000 cycles, based on electrochemical impedance spectroscopy (eis), cyclic voltammetry (cv) and galvanostatic charge discharge (gcd) tests.
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کلیدواژه
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oil palm lignin ,molybdenum disulfide ,morphological ,structural ,supercapacitor
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آدرس
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universiti teknologi petronas, centre of innovative nanostructures and nanodevices (coinn), department of mechanical engineering, malaysia, universiti teknologi petronas, department of mechanical engineering, malaysia, universiti teknologi petronas, centre of innovative nanostructures and nanodevices (coinn), department of mechanical engineering, malaysia, universiti teknologi petronas, centre of innovative nanostructures and nanodevices (coinn), department of mechanical engineering, malaysia, universiti sains malaysia, school of chemical sciences, malaysia, universiti sains malaysia, school of chemical sciences, malaysia, universiti teknologi petronas, department of mechanical engineering, malaysia, institute of nano electronic engineering, malaysia. faculty of chemical engineering & technology, malaysia. universiti malaysia perlis (unimap), malaysia. universiti malaysia perlis (unimap) (kampus pauh putra , universiti malaysia perlis), micro system technology, centre of excellence (coe), malaysia, birmingham city university, school of engineering and the built environment, faculty of computing, engineering, and the built environment, uk
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Authors
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