Synthesis of a Boron–Imidazolate Framework Nanosheet with Dimer Copper Units for CO2 Electroreduction to Ethylene
- 12 May 2021
- journal article
- research article
- Published by Wiley in Angewandte Chemie
- Vol. 60 (30), 16687-16692
- https://doi.org/10.1002/anie.202106004
Abstract
Fundamental understanding of the dependence between the structure and composition on the electrochemical CO 2 reduction reaction (CO 2 RR) would guide the rational design of highly efficient and selective electrocatalysts. A major impediment to the deep reduction CO 2 to multi‐carbon products is the complexity of carbon‐carbon bond coupling. The chemically well‐defined catalysts with atomically dispersed dual‐metal sites are required for these C‐C coupling involved processes. Here, we developed a catalyst (BIF‐102NSs) that features Cl ‐ bridged dimer copper (Cu 2 ) units, which delivers high catalytic activity and selectivity for C 2 H 4 . Mechanistic investigation verifies that neighboring Cu monomers not only perform as regulator for varying the reaction barrier, but also afford distinct reaction paths compared with isolated monomers, resulting in greatly improved electroreduction performance for CO 2 .Funding Information
- National Natural Science Foundation of China (21935010, 21773242)
- National Key Research and Development Program of China (2018YFA0208600)
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