Trace Amount of Platinum Supported on Carbonized Biomorphic Wood for Efficient Electrochemical Hydrogen Evolution in Alkaline Condition

Abstract Carbonized biomorphic wood (Bio‐C), which features unique properties such as highly ordered microtexture, well‐developed porous structure, and low charge transfer resistance, was prepared as a promising scaffold with trace amount of platinum (Pt) supported to efficiently electrocatalyze hydrogen evolution reaction (HER). Pt/Bio‐C nanocomposites demonstrated superior HER activity with a current density reaching as high as ∼58 mA cm −2 at −0.2 V vs . reversible hydrogen electrode (RHE) in strongly alkaline condition.