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US 9,598,780 B2Granted
Electrochemical and photoelectrochemical oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and 2,5-diformylfuran
AssigneeWisconsin Alumni Research Foundation
InventorsKyoung-Shin Choi, Hyun Gil Cha
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Abstract
Electrochemical and photoelectrochemical cells for the oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran are provided. Also provided are methods of using the cells to carry out the electrochemical and photoelectrochemical oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran.
Claims14
A method for the TEMPO-mediated electrochemical oxidation of 5-hydroxymethylfurfural in an electrochemical cell comprising:
- an anode in an anode electrolyte solution comprising 5-hydroxymethylfurfural;
- a TEMPO mediator immobilized on the anode or dissolved in the anode electrolyte solution;
- and a cathode in a cathode electrolyte solution, the method comprising:
- applying an anode potential to the anode, the anode potential being more positive than the onset potential for the oxidation of the TEMPO mediator, wherein TEMPO is oxidized at the anode to form TEMPO+, which induces the TEMPO-mediated oxidation of the 5-hydroxymethylfurfural to form 2,5-furandicarboxylic acid, 2,5-diformylfuran or both.
1 more element
Dependencies are inferred from the claim text.