Work Function Dependent Reduction of Transition Metal Nitrides (TMNs) in Hydrogen Environments

Autor:	Rehman, Abdul, van de Kruijs, Robbert W. E., Beld, Wesley T. E. van den, Sturm, Jacobus M., Ackermann, Marcelo
Rok vydání:	2024
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Amidst the growing importance of hydrogen in a sustainable future, it is critical to develop coatings that can protect system components in reactive hydrogen environments. However, the prediction of the chemical stability of materials in hydrogen is not fully understood. In this study, we show that the work function is a key parameter determining the reducibility (i.e., de-nitridation) of transition metal nitrides (TMNs) in hydrogen radicals (H*). We demonstrate that when the work function of a TMN drops below a threshold limit, its reduction effectively stops. This finding provides a novel perspective for comprehending the hydrogen and transition metal compounds interaction and allows predicting the chemical stability of hydrogen-protective coatings. Comment: 6 pages, 5 figures (main file). 13 pages, 10 figures, 4 tables (supplementary file)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2403.11765 Zobrazit plný text záznamu View this record from Arxiv