Projects per year
Abstract
Copper promoted with zinc is an active catalyst for carbon dioxide hydrogenation to methanol, a reaction relevant to carbon capture and utilization technologies. Previous work showed that inverse zinc-on-copper catalysts on zirconia supports, where zinc(II) is added via atomic layer deposition (ALD), are more active and selective in this reaction than copper-on-zinc catalysts on zirconia. This work continues exploring the inverse zinc-on-copper catalysts by varying the support, comparing zirconia support with alumina, titania and niobia, and with various combinations of the ceria-zirconia-lanthana mixed oxide family. Catalyst characterization was made with elemental analysis, temperature-programmed reduction, temperature-programmed desorption of carbon dioxide, nitrous oxide pulse titration, and transmission electron microscopy. Activity was measured in a fixed-bed flow reactor at 450–550 K. ALD of Zn(II) acetylacetonate gave a similar areal number density of ca. two zinc per square nanometer on all tested supports. Zinc promotion systematically increased the methanol production rate. Among the tested catalysts, the zinc-on-copper on zirconia support remained the most active, with other catalysts from the ceria-zirconia-lanthana mixed oxide family giving almost as good results.
Original language | English |
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Article number | 115283 |
Number of pages | 11 |
Journal | Catalysis Today |
Volume | 454 |
Early online date | 25 Mar 2025 |
DOIs | |
Publication status | E-pub ahead of print - 25 Mar 2025 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Atomic layer deposition
- Carbon dioxide
- Copper
- Hydrogenation
- Methanol
- Zinc oxide
Fingerprint
Dive into the research topics of 'Atomic layer deposited zinc promoted copper catalysts for carbon dioxide hydrogenation to methanol : Influence of support'. Together they form a unique fingerprint.Projects
- 4 Finished
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ALDI: Reactive flow in porous media: modelling and experiments in atomic layer deposition context
Puurunen, R. (Principal investigator)
01/09/2020 → 31/08/2024
Project: RCF Academy Project
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BIOECONOMY: BIOECONOMY Alliance for excellence in sustainable biomass refining
Seppälä, J. (Principal investigator)
01/01/2020 → 31/12/2023
Project: RCF Research Infrastructure
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Renable Carbon Cycle - Uusiutuva hiilikierto: Conversion of CO2 to Fuels with Tailored Heterogeneous Catalysts
Puurunen, R. (Principal investigator)
01/01/2020 → 31/12/2023
Project: Academy of Finland: Other research funding
Equipment
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Bioeconomy Research Infrastructure
Seppälä, J. (Manager)
School of Chemical EngineeringFacility/equipment: Facility
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Raw Materials Research Infrastructure
Karppinen, M. (Manager)
School of Chemical EngineeringFacility/equipment: Facility