Chemical and thermal sintering of supported metals with emphasis on cobalt catalysts during Fischer–Tropsch synthesis

M Rahmati, MS Safdari, TH Fletcher, MD Argyle… - Chemical …, 2020 - ACS Publications
This comprehensive critical review combines, for the first time, recent advances in nanoscale
surface chemistry, surface science, DFT, adsorption calorimetry, and in situ XRD and TEM to …

In situ characterization of Fischer–Tropsch catalysts: A review

N Fischer, M Claeys - Journal of Physics D: Applied Physics, 2020 - iopscience.iop.org
In the field of heterogeneous catalysis research, in situ and operando characterization
techniques, ie characterization techniques which can be applied under realistic reaction …

Selectivity loss in Fischer-Tropsch synthesis: The effect of cobalt carbide formation

P Hazemann, D Decottignies, S Maury, S Humbert… - Journal of …, 2021 - Elsevier
Fischer-Tropsch cobalt catalyst deselectivation was studied using accelerated aging
treatments dedicated to the carburization phenomenon. Cobalt carbide was successfully …

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

M Wolf - RSC advances, 2021 - pubs.rsc.org
The high reaction temperatures during steam and dry reforming of methane inevitably entail
catalyst deactivation. Evaluation of the feasibility or potentially relevant mechanisms at play …

Size dependent stability of cobalt nanoparticles on silica under high conversion Fischer–Tropsch environment

M Wolf, H Kotzé, N Fischer, M Claeys - Faraday discussions, 2017 - pubs.rsc.org
Highly monodisperse cobalt crystallites, supported on Stöber silica spheres, as model
catalysts for the Fischer–Tropsch synthesis were exposed to simulated high conversion …

Preparation of cobalt nanocrystals supported on metal oxides to study particle growth in Fischer–Tropsch catalysts

TW van Deelen, JJ Nijhuis, NA Krans, J Zečević… - ACS …, 2018 - ACS Publications
Colloidal synthesis of nanocrystals (NC) followed by their attachment to a support and
activation is a promising route to prepare model catalysts for research on structure …

Environment-Dependent Catalytic Performance and Phase Stability of Co3O4 in the Preferential Oxidation of Carbon Monoxide Studied In Situ

TM Nyathi, N Fischer, APE York, M Claeys - ACS Catalysis, 2020 - ACS Publications
The preferential oxidation of CO (CO-PrOx) with co-fed O2 is an attractive route for removing
trace amounts of CO in the H2-rich reformate gas prior to being used for power generation in …

Water-induced formation of cobalt-support compounds under simulated high conversion Fischer–Tropsch environment

M Wolf, EK Gibson, EJ Olivier, JH Neethling… - ACS …, 2019 - ACS Publications
Herein we present a comparative study on the water-induced formation of metal–support
compounds from metallic cobalt in a simulated high conversion Fischer–Tropsch …

Role of CO in the water-induced formation of cobalt oxide in a high conversion Fischer–Tropsch environment

M Wolf, BK Mutuma, NJ Coville, N Fischer… - ACS …, 2018 - ACS Publications
A Co/C model catalyst was exposed to increasing partial pressures of water simulating high
Fischer–Tropsch conversions at varying concentrations of synthesis gas. The stability of the …

Co 3 O 4 morphology in the preferential oxidation of CO

M Khasu, T Nyathi, DJ Morgan, GJ Hutchings… - Catalysis Science & …, 2017 - pubs.rsc.org
The preferential oxidation (PrOx) of carbon monoxide is an effective process for the removal
of trace amounts of CO in a hydrogen-rich gas stream originating from steam reforming or …