Controlled Surface Modification of Cobalt Phosphide with Sulfur Tunes Hydrogenation Catalysis.

ABSTRACT: Transition metal phosphides have shown promise as catalysts for water splitting and hydrotreating, especially when a small amount of sulfur is incorporated into the phosphides. However, the effect of sulfur on catalysis is not well understood. In part, this is because conventional preparation methods of sulfur-doped transition metal phosphides lead to sulfur both inside and at the surface of the material. Here, we present an alternative method of modifying cobalt phosphide (CoP) with sulfur using molecular S-transfer reagents, namely, phosphine sulfides (SPR₃). SPR₃ added sulfur to the surface of CoP and using a series of SPR₃ reagents having different P═S bond strengths enabled control over the amount and type of sulfur transferred. Our resul

SUBMITTER: Arnosti NA 

PROVIDER: S-EPMC10623574 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature