A Simple and Efficient Non‐Noble Cathode Catalyst Based on Carbon Hollow Nanocapsules Containing Cobalt‐Based Materials for Anion Exchange Membrane Water Electrolyzer

(at 2.33 V) in 1.0 m KOH at 60 °C. The fabricated new Co-based electrocatalyst is highly beneficial for the fabrication of cost-effective and high-performance AEMWEs.