| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Arredondo-Arechavala, Miryam
Queen's University Belfast
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Low temperature plasma‐assisted double anodic dissolution: a new approach for the synthesis of GdFeO3 perovskite nanoparticlescitations
- 2023Intensifying levulinic acid hydrogenation using mechanochemically prepared copper on manganese oxide catalystscitations
- 2022Insights into selective hydrogenation of levulinic acid using copper on manganese oxide octahedral molecular sievescitations
- 2022Insights into selective hydrogenation of levulinic acid using copper on manganese oxide octahedral molecular sievescitations
- 2021ZnO nucleation into trititanate nanotubes by ALD equipment techniques, a new way to functionalize layered metal oxidescitations
- 2021Importance of overcoming MOVPE surface evolution instabilities for >1.3 μm metamorphic lasers on GaAscitations
- 2018Giant Resistive Switching in Mixed Phase BiFeO3 via phase population controlcitations
- 2017Non-equilibrium ferroelectric-ferroelastic 10nm nanodomains: wrinkles, period-doubling and power-law relaxationcitations
- 2017Non-equilibrium ferroelectric-ferroelastic 10nm nanodomains: wrinkles, period-doubling and power-law relaxationcitations
- 2017Mapping grain boundary heterogeneity at the nanoscale in a positive temperature coefficient of resistivity ceramiccitations
- 2017Mapping grain boundary heterogeneity at the nanoscale in a positive temperature coefficient of resistivity ceramiccitations
- 2014Epitaxial ferroelectric Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 thin films on La 0.7 Sr 0.3 MnO 3 bottom electrodecitations
- 2014Studies of the Room-Temperature Multiferroic Pb(Fe0.5Ta0.5)0.4(Zr0.53Ti0.47)0.6O3: Resonant Ultrasound Spectroscopy, Dielectric, and Magnetic Phenomenacitations
- 2014Epitaxial ferroelectric Pb(Mg1/3Nb2/3)O3-PbTiO3 thin films on La0.7Sr0.3MnO3 bottom electrodecitations
- 2013Strain dependent microstructural modifications of BiCrO3 epitaxial thin filmscitations
- 2011Microstructural analysis of interfaces in a ferromagnetic- multiferroic epitaxial heterostructurecitations
- 2011Chemistry of Ruddlesden-Popper planar faults at a ferroelectric-ferromagnet perovskite interfacecitations
- 2010Synthesis of epitaxial metal oxide nanocrystals via a phase separation approachcitations
- 2008Role of misfit dislocations in ferroelectric thin films CH031
Places of action
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article
Insights into selective hydrogenation of levulinic acid using copper on manganese oxide octahedral molecular sieves
Abstract
<jats:p>Selective hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) was studied using copper on manganese oxide octahedral molecular sieve (OMS-2) as catalysts. A range of copper supported on OMS-2 catalysts was prepared using the modified wet-impregnation technique and characterized thoroughly using powder X-ray diffraction, inductively coupled plasma optical emission spectroscopy metal analysis, Fourier transform infrared, high-resolution transmission electron microscopy and N<jats:sub>2</jats:sub>sorption analyses. Process parameters for selective hydrogenation of LA to GVL were optimized using the design of experiment (DoE) approach with response surface methodology comprising a central composite design. Using the optimized conditions (190°C reaction temperature, 20 bar H<jats:sub>2</jats:sub>pressure and 20 wt% Cu loading on OMS-2), up to 98% yield of GVL could be achieved in water as a solvent. Based on DoE, H<jats:sub>2</jats:sub>pressure had the most influence on GVL selectivity followed by catalyst loading used for the hydrogenation of LA. The response surface methodology model also showed synergistic effect of reaction temperature and H<jats:sub>2</jats:sub>pressure on the yield of GVL. 20 wt% Cu/OMS-2 catalysts were re-used up to four cycles and showed noticeable loss of activity after the first cycle due to observed leaching of loose Cu species, thereafter the activity loss diminished during subsequent recycles.</jats:p>