Efficient Alkaline Hydrogen Evolution Reaction Using Superaerophobic Ni Nanoarrays with Accelerated H₂ Bubble Release (Adv. Mater. 52/2023)

Hydrogen Evolution Reaction In article number 2305844, Jaerim Kim, Yong-Tae Kim, Jong Kyu Kim, and co-workers explore the impact of nanoscale surface morphologies on the release behavior of H2 bubbles and electrochemical hydrogen evolution reaction (HER) performance by introducing surface morphology-controlled Ni catalysts. The highly porous Ni catalyst, composed of an array of Ni nanorods, exhibits exceptional superaerophobic properties. This characteristic facilitates the accelerated release of H2 bubbles from the surface, resulting in a significantly enhanced HER performance.