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Nitride-Derived Copper Modified with Indium as a Selective and Highly Stable Catalyst for the Electroreduction of Carbon Dioxide. | LitMetric

Nitride-Derived Copper Modified with Indium as a Selective and Highly Stable Catalyst for the Electroreduction of Carbon Dioxide.

ChemSusChem

Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland.

Published: August 2019

AI Article Synopsis

  • - The study highlights that efficient catalysts are crucial for the electrocatalytic reduction of carbon dioxide, which is essential for achieving a carbon-neutral economy.
  • - Indium-modified copper nitride was identified as a promising electrocatalyst, demonstrating high stability and a Faradaic efficiency of 80% for converting CO2 to CO over 50 hours, outperforming traditional catalysts.
  • - The research indicates that the stable interfaces of indium-modified copper nitride contribute to its effectiveness, whereas the fast diffusion of indium in other systems leads to instability, affecting overall performance.

Article Abstract

The lack of efficient catalysts prevents the electrocatalytic reduction of carbon dioxide from contributing to the pressing target of a carbon-neutral economy. Indium-modified copper nitride was identified as a stable electrocatalyst selective toward CO. In O /Cu N showed a Faradaic efficiency of 80 % at 0.5 V overpotential for at least 50 h, in stark contrast to the very limited stability of the benchmark In O /Cu O. Microfabricated systems allowed to correlate activity with highly stable interfaces in indium-modified copper nitride. In contrast, fast diffusion of indium resulted in rapidly evolving interfaces in the case of the system based on oxide-derived Cu. A metastable nitrogen species observed by spectroscopic means was proposed as the underlying cause leading to the unchanging interfaces. This work reveals the stabilizing properties of nitride-derived copper toward high-performance multicomponent catalysts.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6772073PMC
http://dx.doi.org/10.1002/cssc.201901309DOI Listing

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