Identifying the Geometric Site Dependence of Spinel Oxides for the Electrooxidation of 5-Hydroxymethylfurfural.

Angew Chem Int Ed Engl

State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the, National Supercomputer Centers in Changsha, Institution Hunan University, Changsha, 410082, P. R. China.

Published: October 2020


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Article Abstract

Co-based spinel oxides, which are of mixing valences with the presence of both Co and Co at different atom locations, are considered as promising catalysts for the electrochemical oxidation of 5-hydroxymethylfurfural (HMF). Identifying the role of each atom site in the electroxidation of HMF is critical to design the advanced electrocatalysts. In this work, we found that Co in Co O is capable of chemical adsorption for acidic organic molecules, and Co play a decisive role in HMF oxidation. Thereafter, the Cu was introduced in spinel oxides to enhance the exposure degree of Co and to boost acidic adsorption and thus to enhance the electrocatalytic activity for HMF electrooxidation significantly.

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http://dx.doi.org/10.1002/anie.202007767DOI Listing

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