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Browsing by Author "Nkosi, FP"

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Conversion of electrolytic MnO2 to Mn3O4 nanowires for high-performance anode materials for lithium-ion batteries

Author: Palaniyandy, Nithyadharseni ; Nkosi, FP ; Raju, Kumar ; Ozoemena, KI Date: Jan 2019 A simple and versatile approach has been implemented for the preparation of some manganese oxide (MnxOy)-based lithium-ion battery anode materials from low-cost electrolytic manganese dioxide (EMD). Depending on the additive, calcination ... Read more
Microwave-assisted optimization of the manganese redox states for enhanced capacity and capacity retention of LiAl(subx)Mn(sub2-x)O(sub4) (x = 0 and 0.3) spinel materials

Author: Nkosi, FP ; Jafta, CJ ; Kebede, Mesfin A ; Le Roux, Lukas J ; Mathe, Mahlanyane K ; Ozoemena, KI Date: Mar 2015 Microwave irradiation at the pre- and post-annealing steps of the synthesis of LiAl(subx)Mn(sub2-x)O(sub4) (x = 0 and 0.3) spinel cathode materials for rechargeable lithium ion battery is a useful strategy to optimize the average manganese ... Read more
Microwave-enhanced electrochemical cycling performance of the LiNi0.2Mn1.8O4 spinel cathode material at elevated temperature

Author: Raju, Kumar ; Nkosi, FP ; Viswanathan, E ; Mathe, Mahlanyane K ; Damodaran, K ; Ozoemena, Kenneth I Date: Apr 2016 The well-established poor electrochemical cycling performance of the LiMn(sub2)O(sub4) (LMO) spinel cathode material for lithium-ion batteries at elevated temperature stems from the instability of the Mn(sup3+) concentration. In this work, a ... Read more
Rational design of 2D manganese phosphate hydrate nanosheets as pseudocapacitive electrodes

Author: Raju, Kumar ; Han, H ; Velusamy, DB ; Jiang, Q ; Yang, H ; Nkosi, FP ; Palaniyandy, Nithyadharseni ; Makgopa, K ; Bo, Z ; Ozoemena, KI Date: Mar 2020 A new class of 2D nanosheets of nitrogen-integrated phosphate-rich ammonium manganese phosphate hydrate, (NH4MnPO4·H2O) (AMP), has been developed as pseudocapacitive electrode materials. The optimized electrodes exhibited device capacitances ... Read more

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Browsing by Author "Nkosi, FP"

Browsing by Author "Nkosi, FP"

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