Adaptive Catalytic Nanointerfaces for Controlled Hydrogen Evolution: an in Situ Electrochemical Approach.

ABSTRACT: Precious metal nanoparticles in electrocatalytic applications tend to be single-use, becoming unusable afterward. Here, this is demonstrated that the electrocatalytic response of these nanoparticles, when confined at the step-edges of corrugated carbon nanofibers interiors, can be switched on again at will by simply introducing sulfur as an inorganic mediator. To achieve this, an electrochemical methodology is developed that triggers the rapid surface reconfiguration of confined, deactivated nanoparticles (PdS_x) involving the release of sulfur to yield highly active crystalline Pd(0) nanoparticles, confined polysulfides, and sulfur-terminated carbon step-edges. More importantly, the electrochemical performance can be systematically switched from a highly active mode, in which po

SUBMITTER: Herreros-Lucas C 

PROVIDER: S-EPMC12376495 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature