Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 42, Pages 12484-12487Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201501420
Keywords
carbon dioxide; electron transfer; metal-insulator-metal structure; oxalate; oxygen
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Funding
- Fonds der Chemischen Industrie
- Cluster of Excellence UNICAT
- German Science foundation
- Alexander-von-Humboldt foundation
- Studienstiftung des Deutschen Volkes
- DAAD
- Co. Ltd. Takata
- Wihuri foundation
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A model system has been created to shuttle electrons through a metal-insulator-metal (MIM) structure to induce the formation of a CO2 anion radical from adsorbed gas-phase carbon dioxide that subsequently reacts to form an oxalate species. The process is completely reversible, and thus allows the elementary steps involved to be studied at the atomic level. The oxalate species at the MIM interface have been identified locally by scanning tunneling microscopy, chemically by IR spectroscopy, and their formation verified by density functional calculations.
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