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Selective lactic acid synthesis via ethylene glycol electrooxidation in borate buffer
Adarsh Koul1, Shubhadeep Chandra1, Wolfgang Schuhmann1
1Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany. wolfgang.schuhmann@rub.de.
Researchers developed a new electrochemical method for selective ethylene glycol oxidation to lactic acid using a nickel-based catalyst and controlled pH. This approach overcomes challenges in C-C bond cleavage for efficient synthesis.
Area of Science:
- Electrochemistry
- Catalysis
- Organic Synthesis
Background:
- Ethylene glycol oxidation is crucial for producing valuable chemicals.
- Selective oxidation to lactic acid is challenging due to C-C bond cleavage.
- Existing methods often lack efficiency and selectivity.
Purpose of the Study:
- To develop an efficient and selective electrochemical method for ethylene glycol oxidation.
- To synthesize lactic acid from ethylene glycol.
- To investigate the role of catalyst and pH in controlling selectivity.
Main Methods:
- Electrochemical oxidation of ethylene glycol.
- Utilizing a nickel-based electrocatalyst.
- Controlling the pH of the electrolyte solution.
Main Results:
- Achieved selective electrooxidation of ethylene glycol to lactic acid.
- Demonstrated the effectiveness of the Ni-based electrocatalyst.
- Showcased the importance of pH control in preventing C-C bond cleavage.
Conclusions:
- The proposed electrochemical strategy enables efficient and selective synthesis of lactic acid from ethylene glycol.
- Nickel-based electrocatalysts combined with pH control offer a promising route for targeted oxidation.
- This method provides a potential solution for overcoming C-C bond cleavage challenges in ethylene glycol oxidation.
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