Browsing by Author "Vasiliades, M. A."
Now showing items 1-7 of 7
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The effect of preparation route of commercial Co/γ-Al2O3 catalyst on important Fischer-Tropsch kinetic parameters studied by SSITKA and CO-DRIFTS transient hydrogenation techniques
Vasiliades, M. A.; Kalamaras, C. M.; Govender, N. S.; Govender, A.; Efstathiou, Angelos M. (2019)Two commercial Co-based catalysts supported on carbon-coated and uncoated γ-Al2O3 (during Co deposition) of different Co particle size (∼7 and 10 nm) and surface structure were investigated to address the effect of preparation ...
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Article
The effect of Pt on the carbon pathways in the dry reforming of methane over Ni-Pt/Ce0.8Pr0.2O2-δ catalyst
Vasiliades, M. A.; Damaskinos, C. M.; Kyprianou, K. K.; Kollia, M.; Efstathiou, Angelos M. (2019)The present work extensively discusses the carbon pathways in the dry reforming of methane with carbon dioxide (DRM) at 750 °C towards syngas (CO/H2 ˜ 1) over 5 wt% Ni, 0.5 wt% Pt and their bimetallic alloy (5 wt% Ni-0.5 wt% ...
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Article
The effect of Ti4+ dopant in the 5 wt% Ni/Ce1-xTixO2-δ catalyst on the carbon pathways of dry reforming of methane studied by various transient and isotopic techniques
Damaskinos, C. M.; Vasiliades, M. A.; Efstathiou, Angelos M. (2019)The carbon pathways in the dry reforming of methane with carbon dioxide (DRM) towards syngas at 750 °C have been investigated for the first time over 5 wt% Ni supported on Ti4+-doped ceria using various transient and ...
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Article
Enhancing the rate of ex situ mineral carbonation in dunites via ball milling
Rigopoulos, I.; Vasiliades, M. A.; Ioannou, I.; Efstathiou, A. M.; Godelitsas, A.; Kyratsi, Theodora (2016)The investigation of potential options for CO2 sequestration is of vital importance for alleviating the ongoing climate problem. This paper presents an efficient method for enhancing the ex situ carbonation of dunites. The ...
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A method to enhance the CO2 storage capacity of pyroxenitic rocks
Rigopoulos, I.; Vasiliades, M. A.; Petallidou, Klito C.; Ioannou, I.; Efstathiou, A. M.; Kyratsi, Theodora (2015)Investigation of new efficient pathways for CO2 sequestration is of great significance for the mitigation of climate change. Ultramafic rocks are considered among the most promising lithotypes for the safe storage of CO2 ...
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On the potential use of quarry waste material for CO2 sequestration
Rigopoulos, I.; Petallidou, Klito C.; Vasiliades, M. A.; Delimitis, A.; Ioannou, I.; Efstathiou, A. M.; Kyratsi, Theodora (2016)The use of solid wastes rich in Ca2+, Mg2+ and Fe2+ for the ex situ sequestration of CO2 could provide an economically and technologically viable option for the reduction of anthropogenic CO2 emissions. Here, we investigate ...
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Origin and reactivity of active and inactive carbon formed during DRM over Ni/Ce0.38Zr0.62O2-δ studied by transient isotopic techniques
Vasiliades, M. A.; Djinović, P.; Davlyatova, L. F.; Pintar, A.; Efstathiou, Angelos M. (2018)The role of Ce0.38Zr0.62O2-δ redox support and that of reactants CH4 and CO2 in the carbon-path of dry reforming of methane (DRM) at 750°C over a 3wt% Ni/Ce0.38Zr0.62O2-δ catalyst were investigated. In particular, meticulously ...