Ultrafine NiIr Nanoclusters Confined in Hollow Mesoporous Carbon Spheres Accelerate Alkaline Hydrogen Evolution

Abstract

Developing efficient hydrogen evolution electrocatalysts is crucial for green hydrogen production, which plays an important role in a zero-carbon society. Herein, ultrafine NiIr nanoclusters confined in hollow mesoporous carbon were synthesized, achieving high mass activity of 1.64 A mg -1 at -0.05 V vs. RHE and excellent durability over 120 h at -0.056 V vs. RHE for alkaline hydrogen evolution.