articleJournal of the American Chemical SocietyMar 16, 2020Closed access

Protecting Copper Oxidation State via Intermediate Confinement for Selective CO 2 Electroreduction to C 2+ Fuels

PYPeng‐Peng YangXZXiaolong ZhangFGFei‐Yue GaoYZYa‐Rong ZhengZNZhuang‐Zhuang Niu

University of Science and Technology of China · National Synchrotron Radiation Laboratory · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

Selective and efficient catalytic conversion of carbon dioxide (CO2) into value-added fuels and feedstocks provides an ideal avenue to high-density renewable energy storage. An impediment to enabling deep CO2 reduction to oxygenates and hydrocarbons (e.g., C2+ compounds) is the difficulty of coupling carbon–carbon bonds efficiently. Copper in the +1 oxidation state has been thought to be active for catalyzing C2+ formation, whereas it is prone to being reduced to Cu0 at cathodic potentials. Here we report that catalysts with nanocavities can confine carbon intermediates formed in situ, which in turn covers the local catalyst surface and thereby stabilizes Cu+ species. Experimental measurements on multihollow…

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Topics & keywords

Topics
Keywords
  • Chemistry
  • Catalysis
  • Copper
  • Selectivity
  • Faraday efficiency
  • Inorganic chemistry
  • Carbon monoxide
  • Carbon fibers
UN Sustainable Development Goals
  • Affordable and clean energy
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