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Browsing by Author "Rambau, Khavharendwe MA"

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A facile segregation process and restoration of LiMn2 O4 cathode material from spent lithium-ion batteries

Author: Palaniyandy, Nithyadharseni ; Rambau, Khavharendwe MA ; Musyoka, Nicholas ; Ren, Jianwei Date: Apr 2020 Due to its three-dimensional tunnel structure, the spinel LiMn2[sub]O4[sub] (LMO) cathode material is highly favourable for the migration of lithium ions. Thus, LMO has been used as a commercial cathode material for the electronic devices ... Read more
A facile segregation process and restoration of LiMn2O4 cathode material from spent lithium-ion batteries

Author: Palaniyandy, Nithyadharseni ; Rambau, Khavharendwe MA ; Musyoka, Nicholas M ; Ren, Jianwei Date: Apr 2020 Due to its three-dimensional tunnel structure, the spinel LiMn2O4 (LMO) cathode material is highly favourable for the migration of lithium ions. Thus, LMO has been used as a commercial cathode material for the electronic devices such as mobile ... Read more
Influence of K3Fe(CN)6 on the electrochemical performance of carbon derived from waste tyres by K2CO3 activation

Author: Bello, A ; Momodu, DY ; Madito, MJ ; Makgopa, K ; Rambau, Khavharendwe MA ; Dangbegnon, JK ; Musyoka, Nicholas M ; Manyala, N Date: Apr 2018 Revalorisation of waste tyres to sustainable value added carbons was studied as a possible means of addressing the challenges with rising demand for energy across the globe. Crumble tyres were used for the production of activated carbon (AC) ... Read more
Manganese-based metal organic framework from spent Li-Ion batteries and its electrochemical performance as anode material in Li-ion battery

Author: Rambau, Khavharendwe MA ; Musyoka, Nicholas M ; Palaniyandy, Nithyadharseni ; Manyala, N Date: Jan 2021 Herein, we report a method of recycling spent lithium-ion batteries (LIBs) cathode materials by utilizing them as a metal feedstock for the synthesis of Mn-based metal-organic frameworks (Mn-MOF). Spent cathodes were converted to manganese ... Read more
Mechanochemical approach in the synthesis of activated carbons from waste tyres and its hydrogen storage applications

Author: Rambau, Khavharendwe MA ; Musyoka, Nicholas M ; Manyala, N ; Ren, Jianwei ; Langmi, Henrietta W Date: 2018 The increase in waste tyres has led scientist in the quest for finding various ways for minimizing problems associated with their disposal. The sought solutions are not only meant to be environmentally friendly but also be able to boost the ... Read more
Preparation of carbon nanofibers/tubes using waste tyres pyrolysis oil and coal fly ash derived catalyst

Author: Rambau, Khavharendwe MA ; Musyoka, Nicholas M ; Manyala, N ; Ren, Jianwei ; Langmi, Henrietta W ; Mathe, Mahlanyane K Date: May 2018 In this study, two waste materials namely; coal y ash (CFA) and waste tyres pyrolysis oil, were successfully utilized in the synthesis of carbon nanofibers/tubes (CNF/Ts). In addition, Fe-rich CFA magnetic fraction (Mag-CFA) and ethylene gas ... Read more
Synthesis of activated carbon from high-carbon coal fly ash and its hydrogen storage application

Author: Musyoka, Nicholas M ; Wdowin, M ; Rambau, Khavharendwe MA ; Franus, W ; Panek, R ; Madej, J ; Czarna-Juszkiewicz, D Date: Aug 2020 Activated carbons (ACs) have desirable characteristics that make them attractive for many industrial applications. In order to reduce their production cost, there is always a need to find alternative low-cost feedstock precursors. Nowadays ... Read more
Utilization of waste tyres pyrolysis oil vapour in the synthesis of Zeolite Templated Carbons (ZTCs) for hydrogen storage application

Author: Musyoka, Nicholas M ; Rambau, Khavharendwe MA ; Manyala, N ; Ren, Jianwei ; Langmi, Henrietta W ; Mathe, Mahlanyane K Date: May 2018 In this study, we investigated the potential for use of waste tyre pyrolysis oil vapour as a carbon precursor in the synthesis of zeolite templated carbons (ZTC). With Zeolite 13X as the template, the ZTCs were synthesised using two methods ... Read more

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Browsing by Author "Rambau, Khavharendwe MA"

Browsing by Author "Rambau, Khavharendwe MA"

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