Small Methods · 2020 · 76 citations · 35 references
Natural SciencesChemistryMaterials ScienceCatalysisNanomaterialsNanotechnologyCatalyst DesignCatalytic MaterialsNanocatalysisNanoporous MaterialsPhotocatalysisPorous MaterialsActive SitesCatalyst Active SitesElectrocatalytic NanomaterialsElectron TransferFaradaic EfficiencyMetal-organic Framework CatalystsMetal-organic FrameworksPorous Catalysts
Abstract 2D catalysts combined with single atom sites are promising candidates to promote CO 2 reduction performance, but the ability to target stable materials with distinct structure still remains challenging. Herein, a series of single metal atoms anchored 2D metal–organic framework nanosheets (MOF‐NS‐M) with visualized and well‐ordered mesoporous structures are fabricated and exhibit enhanced CO 2 reduction activity and selectivity with the assistance of visible‐light. Encouragingly, the CO Faradaic efficiency of MOF‐NS‐Co exceeds 90% in a wide potential window of −0.5 to −1.0 V versus RHE and reaches 98.7% with 100 mV positive shift compared with the result measured under dark. The catalytic kinetics studies show a fast initial electron transfer to CO 2 to form *COO − , thanks to the sufficient exposed active sites resulting from the nanosheet nature and adjusted electron transfer pathway caused by the porphyrin photoswitch.
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Enhanced electrocatalytic CO2 reduction via field-induced reagent concentration
Min Liu, Yuanjie Pang, Bo Zhang et al. · Nature · 2016 · 2K citations