Kolbe electrolysis, a classical electrochemical decarboxylation reaction, has re-emerged as a promising platform for sustainable chemical synthesis. This review critically examines mechanistic insights and recent advancements in Kolbe electrolysis since 2017, emphasizing its application in upgrading biomass-derived carboxylic acids to value-added chemicals. The influence of reaction parameters, electrode materials, and electrolyte composition on product selectivity and efficiency is discussed for different substrates, and a reaction troubleshooting flowchart has been developed based on the existing literature. The integration of Kolbe electrolysis into modern synthetic pathways for the production of fuels, polymers, fine chemicals, and pharmaceuticals is highlighted, along with basic technoeconomic and broad environmental assessments. Challenges such as scalability, product separation, and energy consumption are discussed, as well as routes to overcoming these issues, including hybrid electrochemical systems and reactor engineering. By mapping the evolving role of Kolbe electrolysis within the broader context of chemical manufacturing, this review identifies key opportunities and research directions to enhance the sustainability of the chemical industry.
Pinson et al. (Mon,) studied this question.
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