From well-defined clusters to functional materials: molecular Engineering of amorphous molybdenum sulfides for hydrogen evolution Electrocatalysis

Gonell, Francisco ; Rodenes, Miriam ; Martín, Santiago (Universidad de Zaragoza) ; Boronat, Mercedes ; Sorribes, Iván ; Corma, Avelino

Resumen: Developing precious-metal-free electrocatalysts for the hydrogen evolution reaction (HER) is crucial to establishing H2 produced from renewable energy sources as an alternative energy carrier to fossil fuels. Amorphous molybdenum sulfide-based materials are promising candidates that provide highly active HER electrocatalysts by introducing active sites at both the edge positions and the typically inactive basal planes. Herein, we report an innovative bottom-up synthesis of amorphous molybdenum sulfides using molecular complexes with Mo3S4 and Mo3S7 cluster cores as building entities. The ability to control the precursor of choice has made it viable to enhance the HER activity of these materials. Furthermore, the tunability of the atomic composition of the molecular cluster precursors allows the modification of the derived materials with atomic-scale precision, enabling us to track the synthesis mechanism and, in combination with Density Functional Theory (DFT) calculations, to decipher the nature of the HER active sites.

Idioma: Inglés

DOI: 10.1021/acs.chemmater.3c01260

Año: 2023

Publicado en: Chemistry of materials 35, 20 (2023), 8483-8493
ISSN: 0897-4756

Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-20R

Tipo y forma: Article (Published version)

Área (Departamento): Área Química Física (Dpto. Química Física)