A polyoxometalate@covalent triazine framework as a robust electrocatalyst for selective benzyl alcohol oxidation coupled with hydrogen production
Journal of Materials Chemistry A, ISSN: 2050-7496, Vol: 9, Issue: 10, Page: 6152-6159
2021
- 60Citations
- 25Captures
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Article Description
Electrocatalytic oxidation has been proven as a sustainable and promising alternative to traditional chemical transformation, but its further development is limited by the use of noble-metal electrocatalysts. Herein, a polyoxometalate-based electrode material,HPMoVO@CTF(denoted asPMoV@CTF), has been successfully fabricated through electrostatic assembly of a molecular polyoxometalate catalyst,PMoV, with a porous cationic covalent triazine framework (CTF), which, to our knowledge, represents the first combination of polyoxometalate with a cationic CTF. The resultingPMoV@CTFexhibits high activity for the selective electrocatalytic oxidation of alcohols to aldehydes, achieving 99% conversion of benzyl alcohol, over 99% selectivity of benzyl aldehyde, and at the same time near unity Hproduction. Notably, the reported electrocatalytic system presents good atom economy, high energy conversion (96% faradaic efficiency), remarkable catalytic activity and robustness for at least eight recycles. Based on the various experimental and spectroscopic analyses, a possible catalytic mechanism was proposed, revealing that such excellent electrocatalytic performance is attributed to the versatile redox ability ofPMoVand the good porosity and adsorption property of the CTF in the constructedPMoV@CTFcomposite.
Bibliographic Details
Royal Society of Chemistry (RSC)
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