| 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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Kibsgaard, Jakob
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Stable mass-selected AuTiOx nanoparticles for CO oxidationcitations
- 2024Stable mass-selected AuTiO x nanoparticles for CO oxidationcitations
- 2023Ni 5-x Ga 3+x Catalyst for Selective CO 2 Hydrogenation to MeOH :Investigating the Activity at Ambient Pressure and Low Temperature with Microreactors
- 2023Continuous-flow electrosynthesis of ammonia by nitrogen reduction and hydrogen oxidationcitations
- 2023Continuous-flow electrosynthesis of ammonia by nitrogen reduction and hydrogen oxidationcitations
- 2023Ultra-high vacuum compatible reactor for model catalyst study of ammonia synthesis at ambient pressurecitations
- 2023Ni5-xGa3+x Catalyst for Selective CO2 Hydrogenation to MeOH
- 2022Quantitative operando detection of electro synthesized ammonia using mass spectrometrycitations
- 2022Increasing Ammonia Formation Rates of Li-Mediated Ammonia Synthesis with High Surface Area Copper Electrodes
- 2020The Dissolution Dilemma for Low Pt Loading Polymer Electrolyte Membrane Fuel Cell Catalystscitations
- 2019A rigorous electrochemical ammonia synthesis protocol with quantitative isotope measurements.citations
- 2019A rigorous electrochemical ammonia synthesis protocol with quantitative isotope measurementscitations
- 2017Effects of Gold Substrates on the Intrinsic and Extrinsic Activity of High-Loading Nickel-Based Oxyhydroxide Oxygen Evolution Catalystscitations
- 2016Mesoporous platinum nickel thin films with double gyroid morphology for the oxygen reduction reactioncitations
- 2007Cobalt growth on two related close-packed noble metal surfacescitations
Places of action
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document
Ni5-xGa3+x Catalyst for Selective CO2 Hydrogenation to MeOH
Abstract
Methanol obtained from the direct hydrogenation of CO<sub>2</sub> at low pressures and temperatures can be used as a fuel/chemical feedstock and, if paired with renewable energy sources, could strongly contribute to reach a more sustainable society.<br/><br/>We have studied the catalytic performance of the intermetallic compound Ni<sub>5- x</sub>Ga<sub>3+x</sub> for methanol production. The catalyst shows outstanding activity and selectivity at low temperatures, outperforming the conventional Cu/ZnO. At higher T, the selectivity promptly shifts towards the production of methane and CO, leading to surface poisoning. Nevertheless, the experiments demonstrate the possibility of full regeneration of the catalyst by hydrogen reduction. Lastly, high stability over time under reaction conditions makes it an interesting candidate for scale-up and future industrial application. <br/><br/>A variety of techniques are used to characterize the surface before and after reaction, including XPS, HR-SEM/STEM, XRD, etc., along with close collaboration with computational theoreticians for DFT calculations. All the experiments are performed in state-of-the-art equipment: microreactors of 256 nL are used for catalytic testing. The inlet flow rate is in the order of magnitude of nanomoles/min, making it possible for all the gases to enter directly the QMS, leading to extremely high product detection sensitivity. This, together with an almost immediate temperature control, makes our system ideal for further fundamental studies about CO<sub>2</sub> hydrogenation.