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CO2 controls the oriented growth of metal-organic framework with highly accessible active sites.

ABSTRACT: The production of 2D metal-organic frameworks (MOFs) with highly exposed active surfaces is of great importance for catalysis. Here we demonstrate the formation of MOF nanosheets by utilizing CO2 as a capping agent to control the oriented growth of MOF. This strategy has many advantages over the conventional methods. For example, it is template-free and proceeds at mild temperature (35?°C), CO2 can be easily removed by depressurization, and the properties of the MOF nanosheets can be well adjusted by changing CO2 pressure. Such a simple, rapid, efficient and adjustable route produces MOF nanosheets with ultrathin thickness (?10?nm), small lateral size (?100?nm) and abundant unsaturated coordination metal sites on surfaces. Owing to these unique features, the as-synthesized MOF nanosheets exhibit superior activity for catalyzing the oxidation reactions of alcohols.

SUBMITTER: Zhang F

PROVIDER: S-EPMC7080726 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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CO2 controls the oriented growth of metal-organic framework with highly accessible active sites.

Zhang Fanyu F Zhang Jianling J Zhang Bingxing B Zheng Lirong L Cheng Xiuyan X Wan Qiang Q Han Buxing B Zhang Jing J

Nature communications 20200318 1

The production of 2D metal-organic frameworks (MOFs) with highly exposed active surfaces is of great importance for catalysis. Here we demonstrate the formation of MOF nanosheets by utilizing CO2 as a capping agent to control the oriented growth of MOF. This strategy has many advantages over the conventional methods. For example, it is template-free and proceeds at mild temperature (35 °C), CO2 can be easily removed by depressurization, and the properties of the MOF nanoshe ...[more]

PMID: 32188854

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