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- 저자 : S.L. Kadam (검색결과 2 건)
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S.L. Kadam,S.M. Mane,P.M. Tirmali,S.B. Kulkarni 한국물리학회 2018 Current Applied Physics Vol.18 No.4
In the present work flower like Mn-Co mixed metal oxide electrode materials were successfully synthesized by simple, low cost electrodeposition method on stainless steel substrates. Different volume ratio of Mn-Co was used to attempt enhancement in the supercapacitive properties of electrode material. Structural, morphological and wettability properties of synthesized electrodes were carried out using XRD, RAMAN, FE-SEM and Contact Angle Measurement techniques. Electrochemical properties of electrodeposited Mn-Co mixed metal oxide at three different volume variation such as 50-50, 60-40 and 70- 30 electrodes were analyzed by using cyclic voltammetry, galvonostatic charge discharge and electrochemical impedance spectroscopy in 1M NaOH aqueous electrolyte. The Mn-Co:60-40 composition shows maximum specific capacitance which is 679 F/g at scan rate 5mV/sec. Charge discharge studies gives 95% columbic efficiency. Impedance spectroscopy reveals capacitive behavior and gives series resistance ~0.19 ohm and combined internal resistance ~0.89 ohm. The 80% retention of specific capacitance after the 1000 cycles. The synergistic effect of Mn-Co mixed metal oxide electrode having good conductivity, large surface area and improved charge transportation than individual electrode material leads to enhancing supercapacitor performance of electrode material for its practical application.
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High Entropy Silicides: A Future Perspective of Anode Material for Li-Ion Batteries
Rahul S. Ingole,Snehal L. Kadam,Sung Su Kim 한국전지학회 2022 한국전지학회지 Vol.2 No.1
Silicon anode material is one of the outstanding candidates as a substitute for graphite anode due to its ultra-high theoretical capacity (~4200 mAhg<SUP>−1</SUP>) and abundance of availability. Unfortunately, the severe capacity degradation due to large volume change during lithiation and delithiation has hampered the Si-based anode from being commercialized. A novel class of ceramics emerging in 2019, called high entropy silicides (HES) has produced extensive researchers interest since the first report. This equiatomic multicomponent system has created new opportunities for the design/discovery of materials and applications. The HES shows some best activities compared to their unary, binary, ternary, and quaternary silicide counterparts. This review will highlight some current research developments and possible applications. At the same time, it also gives an insight into the many successfully synthesized HES systems to date and future prospects offered by this innovative class of materials are also discussed.
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