Transition Metal‐Based Materials for Electrocatalytic Glycerol Oxidation to Value‐Added C 1 –C 3 Chemicals

Glycerol, as the primary by‐product in the biodiesel production process, is abundant and cost‐effective. Its efficient conversion into other chemicals offers a promising strategy for alleviating the energy crisis. Electrocatalytic glycerol oxidation reaction (GOR) holds significant application potential due to its mild reaction conditions and lack of additional oxidants, enabling the production of various value‐added chemicals such as lactic acid (LA), dihydroxyacetone (DHA), glyceric acid (GLA), oxalic acid (OA), and formic acid (FA). When GOR is used to replace the oxygen evolution reaction (OER), it enables the coproduction of high‐value oxidation products and H 2 while minimizing energy consumption and carbon dioxide emissions. This has important research significance and value for the conversion of biomass resources and the energy‐efficient production of “green hydrogen.” Consequently, designing efficient and low‐cost electrocatalysts to achieve high activity and selectivity in GOR is a central research objective. Among these, transition metal materials demonstrate significant advantages. This review introduces the types of transition metal catalysts used for GOR and discusses recent catalyst design strategies to enhance GOR activity and selectivity, including nanostructure regulation, defects and surface engineering, heterostructure construction, and single‐atom catalysts. In addition, the practical applications of GOR as well as sustainability studies are discussed. Finally, we summarize the current challenges facing transition metal catalysts in GOR and discuss future prospects.