Efficient and durable electrocatalysts toward alkaline hydrogen evolution reaction (HER) are
of great significance for the widespread application of anion‐exchange membrane water
electrolyzer (AEMWE). Numerous single‐phase catalysts, such as Ru2P, have been
explored as efficient HER catalysts; however, many have failed to overcome the inherent
sluggish kinetics of the two separate steps involved in the alkaline HER: water dissociation
and hydrogen production. In this study, density functional theory calculations are conducted …

In article number 2401426, Sung Jong Yoo, Sang Uck Lee, Kwangyeol Lee, and co-workers
utilized density functional theory calculations to identify promising combinations of Ir 2 P and
Ru 2 P materials that facilitate rapid cascade water dissociation and hydrogen production
through kinetically favorable hydrogen spillover from the Ru 2 P surface to the adjacent Ir 2
P. A novel construction of Ir 2 P cluster-decorated Ru 2 P hollow nanotubes, where the
clusters are epitaxially anchored to nanotube, exhibit cooperative heterostructural synergy.