Bimetallic nanoparticles as a model system for an industrial NiMo catalystShow others and affiliations
2019 (English)In: Materials, E-ISSN 1996-1944, Vol. 12, no 22, article id 3727
Article in journal (Refereed) Published
Abstract [en]
An in-depth understanding of the reactionmechanismis 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. © 2019 by the authors.
Place, publisher, year, edition, pages
MDPI AG , 2019. Vol. 12, no 22, article id 3727
Keywords [en]
Alloyed nanoparticles, Industrial catalysts, Lignin, Model catalyst, NiMo catalyst, Binary alloys, Feedstocks, Molybdenum oxide, Nanocatalysts, Nanoparticles, Nickel, Bimetallic nanoparticles, Fundamental studies, Hydrotreating catalysts, In-depth understanding, Industrial catalyst, Model catalysts, Narrow size distributions, Ni-Mo catalyst, Catalyst supports
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42088DOI: 10.3390/ma12223727Scopus ID: 2-s2.0-85075776357OAI: oai:DiVA.org:ri-42088DiVA, id: diva2:1379174
Note
Funding details: Energimyndigheten, P47452-1, P48428-1; Funding details: Vetenskapsrådet, VR, 2013-05280; Funding details: Stiftelsen för Strategisk Forskning, SSF, 2019-02546, RBP14-0052; Funding text 1: This research was funded by The Swedish Energy Agency grant number P47452-1 and P48428-1, The Swedish Foundation for Strategic Research grant number RBP14-0052, Vinnova grant number 2019-02546, and Swedish research council grant number 2013-05280. The authors acknowledge the assistance of researchers at the Lund Nano Lab and MAX IV Laboratory, and Marie Ernstsson (RISE, Research Institutes of Technology) for the XPS analysis of the NiMo nanoparticles.
2019-12-162019-12-162024-07-04Bibliographically approved