Engineering Work Function to Stabilize Metal Oxides in Reactive Hydrogen.

ABSTRACT: Hydrogen, crucial for the green energy transition, poses a challenge due to its tendency to degrade surrounding wall materials. To harness hydrogen's potential, it is essential to identify the parameter(s) of materials that modulates hydrogen-material interaction. In a recent publication, we have shown that the reduction (denitridation) of transition metal (TM) nitrides in hydrogen radicals (H*) stops when their work function drops below a threshold limit. In this work, we tailor the work function of a complex TM oxide by tuning the relative contents of its constituent TM atoms. We show that increasing the fraction of a low-work function TM decreases the work function of the complex oxide, thereby decreasing its reducibility (deoxidation) in H*. This leads to the stabilization of the highe

SUBMITTER: Rehman A 

PROVIDER: S-EPMC11912526 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature