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Updated: Jun 12, 2025
10:57
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
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Synthesis of Benzoic Acids from Electrochemically Reduced CO2 Using Heterogeneous Catalysts
Ha Phan1, Robin Gueret2, Pablo Martínez-Pardo1
1Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden.
Chemsuschem
|September 23, 2024
Summary
This study presents a sustainable method for synthesizing benzoic acids from aryl iodides using electrochemically reduced carbon dioxide (CO2) and water. The process avoids hazardous carbon monoxide (CO) gas and offers high yields with recyclable catalysts.
Area of Science:
- Organic Chemistry
- Electrochemistry
- Sustainable Chemistry
Background:
- Benzoic acid derivatives are important compounds in various industries.
- Traditional synthesis methods often involve hazardous reagents or harsh conditions.
- Developing sustainable routes using abundant feedstocks like CO2 is crucial.
Purpose of the Study:
- To develop an efficient and selective method for synthesizing benzoic acids from aryl iodides.
- To utilize carbon dioxide (CO2) and water as sustainable feedstocks.
- To avoid the direct use of hazardous carbon monoxide (CO) gas.
Main Methods:
- Electrochemical reduction of CO2 to CO (eCO2RR) using a surface-modified silver electrode in an aqueous electrolyte.
- Ex-situ generation of CO for subsequent hydroxycarbonylation of aryl iodides.
- Utilizing a MOF-supported palladium catalyst for the hydroxycarbonylation reaction at room temperature.
Main Results:
- High yields of various benzoic acid derivatives were achieved.
- The electrochemical reduction of CO2 selectively produced CO, minimizing hydrogen evolution reaction (HER) and dehalogenation.
- The catalytic system demonstrated recyclability over several runs with sustained high activity.
Conclusions:
- A novel, sustainable, and efficient tandem system for benzoic acid synthesis has been established.
- The method offers a safer alternative to traditional approaches by electrochemically generating CO in situ.
- The use of abundant feedstocks and recyclable catalysts highlights the potential for green chemistry applications.
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