Journal of the American Chemical Society· 2026Q1
Engineering Synergistic Sites in a Cerium-Based Metal–Organic Framework for Photocatalytic CO2 Reduction
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- 2026year
Short summary
A cerium-based MOF (PKU-167) modified with Co(bpy)2Cl2 achieved a CO production rate of 18.4 mmol g–1 h–1 with 91.8% selectivity under visible light.
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Key points
- An amino-functionalized Ce-based MOF (PKU-167) was synthesized.
- Modification with Co(bpy)2Cl2 yielded PKU-167-0.9Co, achieving 18.4 mmol g–1 h–1 CO production rate and 91.8% selectivity.
- The material showed a 1.97% apparent quantum yield at 425 nm.
- A synergistic adsorption-reduction mechanism involving amino groups, {Ce6} clusters, and Co2+ sites was identified.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Photoreduction of CO2 to produce solar fuels is an important target. Redox-active Ce-based metal–organic frameworks (MOFs) are promising catalysts. Herein, we have synthesized an amino-functionalized Ce-based MOF, PKU-167 (PKU = Peking University). Upon introduction of Co(bpy)2Cl2 (bpy = 2,2′-bipyridine) to the skeleton of PKU-167, PKU-167-0.9Co achieved a high CO production rate of 18.4 mmol g–1 h–1 with a selectivity of 91.8% under visible-light irradiation and an apparent quantum yield of 1.97% at 425 nm. In situ characterizations and modeling reveal a synergistic adsorption–reduction mechanism, where amino groups enrich adsorption of CO2 for subsequent photoreduction on {Ce6} clusters and Co2+ sites in concert to achieve the optimal photocatalytic performance. This study will advance the rational design of redox-active Ce-based MOFs as efficient photocatalysts.
The authors' abstract, as published at the source. Journal of the American Chemical Society, 2026 · DOI ↗
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Field: Renewable Energy, Sustainability and the Environment
Renewable Energy, Sustainability and the EnvironmentEnergy