Front Cover: Electrospun Cu‐Deposited Flexible Fibers as an Efficient Oxygen Evolution Reaction Electrocatalyst (ChemPhysChem 22/2019)

The Front Cover illustrates the unique microstructures of electrospun flexible fibers, coated with copper, designed as an efficient oxygen evolution reaction (OER) electrocatalyst. Owing to the unique microstructure and synergistic effect at the Cu|PVdF‐HFP interface, the diffusion of the OER reactants/products as well as the reaction energetics are optimized, leading to enhanced and stable OER activity. More information can be found in the Article by A. Morinaga et al. on page 2973 in Issue 22, 2019 (DOI: 10.1002/cphc.201900663).