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David Ofori Kumi
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Effects of Co and Ru intimacy in Fischer–Tropsch catalysts using hollow carbon sphere supports: assessment of the hydrogen spillover processes
TN Phaahlamohlaka, DO Kumi, MW Dlamini, R Forbes, LL Jewell, ...
ACS Catalysis 7 (3), 1568-1578, 2017
632017
Ruthenium nanoparticles encapsulated inside porous hollow carbon spheres: A novel catalyst for Fischer–Tropsch synthesis
TN Phaahlamohlaka, DO Kumi, MW Dlamini, LL Jewell, NJ Coville
Catalysis Today 275, 76-83, 2016
452016
Post doped nitrogen-decorated hollow carbon spheres as a support for Co Fischer-Tropsch catalysts
MW Dlamini, TN Phaahlamohlaka, DO Kumi, R Forbes, LL Jewell, ...
Catalysis Today 342, 99-110, 2020
442020
Carbon spheres prepared by hydrothermal synthesis—a support for bimetallic iron cobalt Fischer–Tropsch catalysts
MW Dlamini, DO Kumi, TN Phaahlamohlaka, AS Lyadov, DG Billing, ...
ChemCatChem 7 (18), 3000-3011, 2015
422015
A sinter resistant Co Fischer-Tropsch catalyst promoted with Ru and supported on titania encapsulated by mesoporous silica
TN Phaahlamohlaka, MW Dlamini, MW Mogodi, DO Kumi, LL Jewell, ...
Applied Catalysis A: General 552, 129-137, 2018
352018
Effect of a titania covering on CNTS as support for the Ru catalysed selective CO methanation
DO Kumi, N Phaahlamohlaka, MW Dlamini, IT Mangezvo, SD Mhlanga, ...
Applied Catalysis B: Environmental 232, 492-500, 2018
342018
Optimization of the electron transport in quantum dot light-emitting diodes by codoping ZnO with gallium (Ga) and magnesium (Mg)
HH Kim‡, DO Kumi‡(‡:equal contribution), K Kiwoong, D Park, Y Yi, ...
RSC advances 9 (55), 32066-32071, 2019
212019
Co inside hollow carbon spheres as a Fischer-Tropsch catalyst: Spillover effects from Ru placed inside and outside the HCS
TN Phaahlamohlaka, MW Dlamini, DO Kumi, R Forbes, LL Jewell, ...
Applied Catalysis A: General 599, 117617, 2020
132020
Selective CO methanation over Ru supported on carbon spheres: The effect of carbon functionalization on the reverse water gas shift reaction
DO Kumi, MW Dlamini, TN Phaahlamohlaka, SD Mhlanga, NJ Coville, ...
Catalysis Letters 148, 3502-3513, 2018
122018
Ultraviolet to visible down conversion of SiO2–Ce3+, Tb3+ nanospheres-poly-EVA films for solar cell application
DO Kumi, S Khan, SH Cho, MO Ntwaeaborwa
Physica B: Condensed Matter 576, 411711, 2020
92020
A study of WC-X systems for potential binders for WC
DO Kumi
Doktorska disertacija, University of the Witwatersrand, Faculty of …, 2011
22011
Selective CO methanation over Ru on carbon and titania based supports
DO Kumi
2016
Ruthenium nanoparticles encapsulated inside porous hollow carbon spheres
TN Phaahlamohlaka, DO Kumi, MW Dlamini, LL Jewell, NJ Coville
Catalysis Today, 2015
2015
Differentiating primary and secondary hydrogen spillover processes using Ru promoted Co Fischer-Tropsch catalysts supported on hollow carbon spheres.
TN Phaahlamohlaka, DO Kumi, MW Dlamini, R Forbes, LL Jewell, ...
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