Dual-Function Precious-Metal-Free Metal-Organic Framework for Photocatalytic Conversion and Chemical Fixation of Carbon Dioxide

Xiaoli Wang; Jingzhe Li; Manchang Kou; Wei Dou; Dongjie Bai; Xiaoliang Tang; Yu Tang; Weisheng Liu

doi:10.1021/acs.inorgchem.3c02765

Dual-Function Precious-Metal-Free Metal-Organic Framework for Photocatalytic Conversion and Chemical Fixation of Carbon Dioxide

Inorg Chem. 2023 Nov 20;62(46):19015-19024. doi: 10.1021/acs.inorgchem.3c02765. Epub 2023 Nov 3.

Authors

Xiaoli Wang^{1

2}, Jingzhe Li¹, Manchang Kou¹, Wei Dou¹, Dongjie Bai¹, Xiaoliang Tang^{1

2

3}, Yu Tang¹, Weisheng Liu^{1

2

3}

Affiliations

¹ MOE Frontiers Science Center for Rare Isotopes, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Engineering Research Center of Rare Earth Functional Materials, Ministry of Education, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
² College of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810016, China.
³ Academy of Plateau Science and Sustainability, People's Government of Qinghai Province & Beijing Normal University, Xining 810016, China.

PMID: 37919966
DOI: 10.1021/acs.inorgchem.3c02765

Abstract

Highly efficient transformation of carbon dioxide (CO₂) into value-added chemicals is considered a promising route for clean production and future energy sustainability, which is crucial for realizing a carbon-neutral economy. It remains a great challenge to develop highly stable and active catalysts with low-cost, environmentally friendly, and nontoxic materials for catalytic conversion of CO₂. Herein, a precious-metal-free and heterogeneous MOF (LTG-FeZr) catalyst, composed of bis(terpyridine)iron(II) complexes and zirconium(IV) ions, was designed and prepared via a metalloligand approach. LTG-FeZr, with a robust framework and regular 1D channels not only can achieve the photocatalytic reduction of CO₂ to HCOOH with a high conversion rate (up to 265 μmol·g^-1·h^-1) under visible-light irradiation but also exhibits exceptional catalytic activities toward the synthesis of cyclic carbonates via cycloaddition reactions of various epoxides and CO₂ in the absence of light. Possible mechanisms for two different conversion processes of CO₂ catalyzed by LTG-FeZr have been proposed. LTG-FeZr represents an ideal dual-function MOF platform for the catalytic conversion and utilization of CO₂ in all weather conditions.