Spatially Formed Tenacious Nickel-Supported Bimetallic Catalysts for CO2 Methanation under Conventional and Induction Heating

Daniel Lach; Błażej Tomiczek; Tomasz Siudyga; Maciej Kapkowski; Rafał Sitko; Joanna Klimontko; Sylwia Golba; Grzegorz Dercz; Krzysztof Matus; Wojciech Borek; Jaroslaw Polanski

doi:10.3390/ijms24054729

Spatially Formed Tenacious Nickel-Supported Bimetallic Catalysts for CO₂ Methanation under Conventional and Induction Heating

Int J Mol Sci. 2023 Mar 1;24(5):4729. doi: 10.3390/ijms24054729.

Authors

Affiliations

¹ Centre for Materials and Drug Discovery, Institute of Chemistry, Faculty of Science and Technology, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
² Scientific and Didactic Laboratory of Nanotechnology and Material Technologies, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland.
³ Institute of Physics, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland.
⁴ Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland.
⁵ Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland.
⁶ Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland.

Abstract

The paper introduces spatially stable Ni-supported bimetallic catalysts for CO₂ methanation. The catalysts are a combination of sintered nickel mesh or wool fibers and nanometal particles, such as Au, Pd, Re, or Ru. The preparation involves the nickel wool or mesh forming and sintering into a stable shape and then impregnating them with metal nanoparticles generated by a silica matrix digestion method. This procedure can be scaled up for commercial use. The catalyst candidates were analyzed using SEM, XRD, and EDXRF and tested in a fixed-bed flow reactor. The best results were obtained with the Ru/Ni-wool combination, which yields nearly 100% conversion at 248 °C, with the onset of reaction at 186 °C. When we tested this catalyst under inductive heating, the highest conversion was observed already at 194 °C.

Keywords: Au; CO2 methanation; Ni-mesh support; Ni-wool support; Pd; Re; Ru nanoparticles; bimetallic catalyst; induction heating; spatial and tenacious form.

MeSH terms

Carbon Dioxide*
Heating
Nickel*
Silicon Dioxide

Substances

Nickel
Carbon Dioxide
Silicon Dioxide

Grants and funding

OPUS 2018/29/B/ST8/02303/National Science Center