Molten salt synthesis of CrMnFeNi alloy nanopowder passivated by TiO _x -ZrO _y shell used as a superior catalyst support in liquid-phase hydrogenation.

ABSTRACT: A molten salt method was used to prepare CrMnFeNi alloy nanopowder passivated by TiO _x -ZrO _y surface shell with a high specific surface area (23 m² g^-1) from the oxide precursors. Analyses by scanning electron microscopy/transmission electron microscopy with energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy revealed the formation of an alloyed Cr-Mn-Fe-Ni-rich core surrounded by an oxide surface shell with a Ti/Zr-rich composition, confirming the formation of TiO _x -ZrO _y /CrMnFeNi nanopowder. It was speculated that the CrMnFeNi alloy nanoparticles were preferentially formed from the constituent metals by a faster reduction of any oxides of Cr, Mn, Fe, and Ni and a subsequ

SUBMITTER: Kobayashi Y 

PROVIDER: S-EPMC10074232 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature