Electrocatalysts: Advanced Biomass‐Derived Electrocatalysts for the Oxygen Reduction Reaction (Adv. Mater. 24/2018)

In article number 1703691, Maryam Borghei, Orlando J. Rojas, and co-workers review recent progress on biomass-derived electrocatalysts for the oxygen reduction reaction (ORR). Biomass (such as wood) is converted to carbon-based electrocatalysts, the transition illustrated by hybridization with fullerene and graphene. In the ORR, oxygen molecules are converted to water on the graphene lattice, hopping out of the electrocatalyst. This can take place in energy-conversion devices such as fuel cells or metal–air batteries. Image credits: Jinze Dou (for providing the wood cell wall microscopy samples), Prof. Esko Kauppinen (for providing 3D models of graphene/fullerene), and Valeria Azovskaya (for graphic design).