Atomic layer deposited zinc promoted copper catalysts for carbon dioxide hydrogenation to methanol : Influence of support
Loading...
Access rights
openAccess
CC BY
CC BY
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
2025-06-15
Major/Subject
Mcode
Degree programme
Language
en
Pages
11
Series
Catalysis Today, Volume 454
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.Description
Publisher Copyright: © 2025 The Authors
Keywords
Atomic layer deposition, Carbon dioxide, Copper, Hydrogenation, Methanol, Zinc oxide
Other note
Citation
Arandia, A, Velasco, J A, Sajid, A, Yim, J, Shamshad, H, Jiang, H, Chahal, A, Singh, A K, Gonsalves, C, Karinen, R & Puurunen, R L 2025, ' Atomic layer deposited zinc promoted copper catalysts for carbon dioxide hydrogenation to methanol : Influence of support ', Catalysis Today, vol. 454, 115283 . https://doi.org/10.1016/j.cattod.2025.115283