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Title: Electrochemical behaviour of naked sub-nanometre sized copper clusters and effect of CO2

Journal Article · · Catalysis Science and Technology
DOI:https://doi.org/10.1039/c6cy00942e· OSTI ID:1352618
 [1];  [1];  [1];  [2];  [2];  [2];  [2];  [3]
  1. Univ. of Messina (Italy). Dept. of Chemical, Biological, Pharmaceutical and Environmental Science; Univ. of Messina (Italy). Dept. of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division, X-ray Science Division, Nanoscience and Technology Division
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division, X-ray Science Division, Nanoscience and Technology Division; Yale Univ., New Haven, CT (United States). Dept. of Chemical and Environmental Engineering; Univ. of Chicago, IL (United States). Inst. for Molecular Engineering (IME)
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The study of the electrochemical behavior (in the presence of N2 or CO2) of size-controlled naked Cu5 and Cu20 nanoclusters, prepared using a combination of gas-phase cluster ion sources, mass spectrometry, and soft-landing techniques, evidences some relevant results regarding the redox behavior of these sub-nanometre sized copper particles and the effect of CO2 on them. Cu20 nanoclusters show anodic redox processes occurring at much lower potential with respect to Cu5 nanoclusters, which behave relatively similar to much larger Cu particles. However, Cu5 nanoclusters coordinate effectively CO2 (hydrogen carbonate) in solution, different from Cu20 nanoclusters and larger Cu particles. This effect, rather than the redox behavior, is apparently connected to the ability of Cu5 nanoclusters to reduce CO2 under cathodic conditions at low overpotential. In conclusion, although preliminary, these results provide rather exciting indications on the possibility of realizing low overpotential electrocatalytic conversion of CO2.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1352618
Journal Information:
Catalysis Science and Technology, Vol. 6, Issue 18; ISSN 2044-4753
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

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Cited By (6)

Metal Clusters on Semiconductor Surfaces and Application in Catalysis with a Focus on Au and Ru journal December 2019
Von isolierten Ionen zu mehrschichtigen funktionellen Materialien durch sanfte Landung von Ionen journal November 2018
From Isolated Ions to Multilayer Functional Materials Using Ion Soft Landing journal November 2018
Increasing the optical response of TiO 2 and extending it into the visible region through surface activation with highly stable Cu 5 clusters journal January 2019
The stability and oxidation of supported atomic-size Cu catalysts in reactive environments journal August 2019
Physico-Chemical Insights into Gas-Phase and Oxide-Supported Sub-Nanometre AuCu Clusters journal June 2019

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