Simultaneous H 2 Generation and Biomass Upgrading in Water by an Efficient Noble‐Metal‐Free Bifunctional Electrocatalyst

As an environmentally friendly approach to generate H2 , electrocatalytic water splitting has attracted worldwide interest. However, its broad employment has been inhibited by costly catalysts and low energy conversion efficiency, mainly due to the sluggish anodic half reaction, the O2 evolution reaction (OER), whose product O2 is not of significant value. Herein, we report an efficient strategy to replace OER with a thermodynamically more favorable reaction, the oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA), catalyzed by 3D Ni2 P nanoparticle arrays on nickel foam (Ni2 P NPA/NF). HMF is one of the primary dehydration intermediates of raw biomass and FDCA is of many industrial…