| Literature DB >> 29498168 |
Zhi Cao1, Jeffrey S Derrick1,2, Jun Xu3, Rui Gao4,5, Ming Gong1,2, Eva M Nichols1,2, Peter T Smith1,2, Xingwu Liu4,5, Xiaodong Wen4,5, Christophe Copéret3, Christopher J Chang1,6,2.
Abstract
Reported here is the chelate effect as a design principle for tuning heterogeneous catalysts for electrochemical CO2 reduction. Palladium functionalized with a chelating tris-N-heterocyclic carbene (NHC) ligand (Pd-timtmbMe ) exhibits a 32-fold increase in activity for electrochemical reduction of CO2 to C1 products with high Faradaic efficiency (FEC1 =86 %) compared to the parent unfunctionalized Pd foil (FE=23 %), and with sustained activity relative to a monodentate NHC-ligated Pd electrode (Pd-mimtmbMe ). The results highlight the contributions of the chelate effect for tailoring and maintaining reactivity at molecular-materials interfaces enabled by surface organometallic chemistry.Entities:
Keywords: CO2 reduction; N-heterocyclic carbenes; electrocatalysis; palladium; surface chemistry
Year: 2018 PMID： 29498168 DOI： 10.1002/anie.201800367
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336