Design and development of solid-state nanostructures for catalysis
Summary, in English
In this thesis, a novel approach to designing and developing solid-state nanostructures for catalysis is presented. It encompasses three main components: the generation of catalytic nanoparticles, the fabrication of nanostructure supports, and post-processing techniques to enhance stability. Aerosol methods, specifically spark discharge generation, are employed to produce nanoparticles with high control over size, composition, and crystallinity. The fabrication of support structures, using epitaxial growth, resulted in close-packed tapered gallium phosphide nanowires and nano-trees that elevate catalytic nanoparticles, enhancing their accessibility to reactants during reactions. The thesis also addresses the challenge of stability for the catalytic nanoparticles in reaction environments, both for the use of planar supports and with high-aspect-ratio nanowire supports. The work includes the development of a method to study stability under reaction conditions, enabling the determination of suitable material sys-
tems. Finally, the catalytic evaluation of nanowire-supported palladium nanoparticles reveals promising results for the nanostructured catalysts, with a 15-fold increase in catalytic activity compared to using a planar support.
Department of Physics, Lund University
- Condensed Matter Physics
- Fysicumarkivet A:2023:Franzén
- ISBN: 978-91-8039-891-6
- ISBN: 978-91-8039-890-9
15 december 2023
Lecture Hall Rydbergsalen, Department of Physics, Professorsgatan 1, Faculty of Engineering LTH, Lund University, Lund.
- Andreas Güntner (Assoc. Senior Lect.)