Bimetallic Nanoparticles as a Model System for an Industrial NiMo Catalyst

Research output: Contribution to journalArticle

Abstract

An in-depth understanding of the reaction mechanism is required for the further development of Mo-based catalysts for biobased feedstocks. However, fundamental studies of industrial catalysts are challenging, and simplified systems are often used without direct comparison to their industrial counterparts. Here, we report on size-selected bimetallic NiMo nanoparticles as a candidate for a model catalyst that is directly compared to the industrial system to evaluate their industrial relevance. Both the nanoparticles and industrial supported NiMo catalysts were characterized using surface- and bulk-sensitive techniques. We found that the active Ni and Mo metals in the industrial catalyst are well dispersed and well mixed on the support, and that the interaction between Ni and Mo promotes the reduction of the Mo oxide. We successfully produced 25 nm NiMo alloyed nanoparticles with a narrow size distribution. Characterization of the nanoparticles showed that they have a metallic core with a native oxide shell with a high potential for use as a model system for fundamental studies of hydrotreating catalysts for biobased feedstocks.

Details

Authors
Organisations
External organisations
  • Lawrence Berkeley National Laboratory
  • RISE Bioscience and materials
  • SunCarbon AB
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Process Engineering

Keywords

  • NiMo catalyst, Alloyed nanoparticles, Model catalyst
Original languageEnglish
Article number3727
JournalMaterials
Volume12
Issue number22
Publication statusPublished - 2019 Nov 12
Publication categoryResearch
Peer-reviewedYes

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