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An efficient defect engineering strategy to enhance catalytic performances of CoO nanorods for CO oxidation.

08:00 EDT 16th March 2020 | BioPortfolio

Summary of "An efficient defect engineering strategy to enhance catalytic performances of CoO nanorods for CO oxidation."

Catalytic oxidation of CO at ambient temperature is an important reaction for many environmental applications. Here, we employed a defect engineering strategy to design an extraordinarily effective Sn-doped CoO nanorods (NRs) catalyst for CO oxidation. Our combined theoretical and experimental data demonstrated that Co in the lattice of CoO were substituted by Sn. Based on a variety of characterizations and kinetic studies, this catalyst was found to combine the advantages of the nanorod-like morphology for largely exposing catalytically active Co sites and the promotional effect of Sn dopant for adjusting the textural/redox properties. Additionally, the Sn-substituted CoO NRs can be further activated via heat treatment to achieve low-temperature CO oxidation (T ∼ -100 °C) with excellent stability at ambient temperature. This study reveals the importance of Sn-substitution of inactive Co in CoO and provides an ultra-efficient catalyst for CO oxidation, making this robust material one of the most powerful catalysts available up to now.

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This article was published in the following journal.

Name: Journal of hazardous materials
ISSN: 1873-3336
Pages: 122540

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