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Title: Copper cluster size effect in methanol synthesis from CO2

Journal Article · · Journal of Physical Chemistry. C

Here, size-selected Cun catalysts (n = 3, 4, 20) were synthesized on Al2O3 thin films using mass-selected cluster deposition. A systematic study of size and support effects was carried out for CO2 hydrogenation at atmospheric pressure using a combination of in situ grazing incidence X-ray absorption spectroscopy, catalytic activity measurement, and first-principles calculations. The catalytic activity for methanol synthesis is found to strongly vary as a function of the cluster size; the Cu4/Al2O3 catalyst shows the highest turnover rate for CH3OH production. With only one atom less than Cu4, Cu3 showed less than 50% activity. Density functional theory calculations predict that the activities of the gas-phase Cu clusters increase as the cluster size decreases; however, the stronger charge transfer interaction with Al2O3 support for Cu3 than for Cu4 leads to remarkably reduced binding strength between the adsorbed intermediates and supported Cu3, which subsequently results in a less favorable energetic pathway to transform carbon dioxide to methanol.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1372481
Journal Information:
Journal of Physical Chemistry. C, Vol. 121, Issue 19; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 109 works
Citation information provided by
Web of Science

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Cited By (19)

Underpotential Deposition of Copper Clusters on Sulfur and Nitrogen Co‐Doped Graphite Foam for the Oxygen Reduction Reaction journal October 2019
Nanoassemblies of ultrasmall clusters with remarkable activity in carbon dioxide conversion into C1 fuels journal January 2019
CO 2 adsorption on gas-phase Cu 4−x Pt x ( x = 0–4) clusters: a DFT study
  • Gálvez-González, Luis E.; Juárez-Sánchez, J. Octavio; Pacheco-Contreras, Rafael
  • Physical Chemistry Chemical Physics, Vol. 20, Issue 25 https://doi.org/10.1039/c8cp00818c
journal January 2018
Using first principles calculations to interpret XANES experiments: extracting the size-dependence of the ( p  , T ) phase diagram of sub-nanometer Cu clusters in an O 2 environment journal February 2019
Reversing Size-Dependent Trends in the Oxidation of Copper Clusters through Support Effects: Reversing Size-Dependent Trends in the Oxidation of Copper Clusters through Support Effects journal December 2017
Towards operando computational modeling in heterogeneous catalysis journal January 2018
Mapping XANES spectra on structural descriptors of copper oxide clusters using supervised machine learning journal October 2019
Recent progress in improving the stability of copper-based catalysts for hydrogenation of carbon–oxygen bonds journal January 2018
Metal Nanoclusters: New Paradigm in Catalysis for Water Splitting, Solar and Chemical Energy Conversion journal March 2019
The stability and oxidation of supported atomic-size Cu catalysts in reactive environments journal August 2019
Activation of CO 2 by supported Cu clusters journal January 2017
DFT calculations on subnanometric metal catalysts: a short review on new supported materials journal March 2018
Survey of short and long cuprophilic d 10 –d 10 contacts for tetranuclear copper clusters. Understanding of bonding and ligand role from a planar superatom perspective journal January 2018
Study on the Adsorption and Activation Behaviours of Carbon Dioxide over Copper Cluster (Cu 4 ) and Alumina-Supported Copper Catalyst (Cu 4 /Al 2 O 3 ) by means of Density Functional Theory journal December 2019
Perspective: Size selected clusters for catalysis and electrochemistry journal March 2018
Decomposition of Copper Formate Clusters: Insight into Elementary Steps of Calcination and Carbon Dioxide Activation journal November 2019
Release of Formic Acid from Copper Formate: Hydride, Proton‐Coupled Electron and Hydrogen Atom Transfer All Play their Role journal April 2019
Single atom detachment from Cu clusters, and diffusion and trapping on CeO 2 (111): implications in Ostwald ripening and atomic redispersion journal January 2018
Theoretical Study on the Aggregation of Copper Clusters on a Liquid Surface journal November 2019

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