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Bimetallic Nanoparticles as a Model System for an Industrial NiMo Catalyst

Blomberg, Sara LU ; Johansson, Niclas LU ; Kokkonen, Esko LU ; Rissler, Jenny LU ; Kollberg, Linnéa LU ; Preger, Calle LU ; Franzén, Sara M LU ; Messing, Maria E LU and Hulteberg, Christian LU (2019) In Materials 12(22).
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,... (More)

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.

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Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
NiMo catalyst, Alloyed nanoparticles, Model catalyst
in
Materials
volume
12
issue
22
article number
3727
publisher
MDPI AG
external identifiers
  • pmid:31718101
  • scopus:85075776357
ISSN
1996-1944
DOI
10.3390/ma12223727
project
High value chemicals from lignin using biological processes
STEPS – Sustainable Plastics and Transition Pathways
language
English
LU publication?
yes
id
a3cb6e43-3556-45ac-8c01-8a0441477f8a
date added to LUP
2019-11-25 16:44:51
date last changed
2020-09-23 08:00:07
@article{a3cb6e43-3556-45ac-8c01-8a0441477f8a,
  abstract     = {<p>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.</p>},
  author       = {Blomberg, Sara and Johansson, Niclas and Kokkonen, Esko and Rissler, Jenny and Kollberg, Linnéa and Preger, Calle and Franzén, Sara M and Messing, Maria E and Hulteberg, Christian},
  issn         = {1996-1944},
  language     = {eng},
  month        = {11},
  number       = {22},
  publisher    = {MDPI AG},
  series       = {Materials},
  title        = {Bimetallic Nanoparticles as a Model System for an Industrial NiMo Catalyst},
  url          = {http://dx.doi.org/10.3390/ma12223727},
  doi          = {10.3390/ma12223727},
  volume       = {12},
  year         = {2019},
}