Harnessing Effective Electric Field Amplification and Intermetallic Hybridization via Nanoelectrode Superlattices to Boost Electrocatalytic Green Hydrogen Production.

ABSTRACT: Electrocatalytic hydrogen evolution reaction (HER) offers a sustainable pathway for green hydrogen production, addressing growing energy demands while reducing fossil fuel dependence. However, existing electrocatalysts face challenges, including low current densities, excessive Pt reliance, and inefficient charge transfer. Here, ampere-level HER catalysis is achieved by introducing 2D nanoelectrode superlattices that boost electrocatalytic efficiency through two key concepts: i) Electric field amplification, where Ag nanoparticles serve as nanoelectrodes and their interparticle interactions within the superlattice are leveraged to concentrate local electric fields for facilitating charge accumulation and transfer. ii) Intermetallic Pt-Ag hybridization, which modulates electronic structure

SUBMITTER: Boong SK 

PROVIDER: S-EPMC12632424 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature