Movement of palladium nanoparticles in hollow graphitised nanofibres: the role of migration and coalescence in nanocatalyst sintering during the Suzuki–Miyaura reaction

Lodge, Rhys. W.; Rance, Graham. A.; Fay, Michael. W.; Khlobystov, Andrei. N.

Abstract

The evolution of individual palladium nanoparticle (PdNP) catalysts, in graphitised nanofibres (GNF), in the liquid-phase Suzuki-Miyaura (SM) reaction has been appraised. The combination of identical location-transmission electron microscopy (IL-TEM) and a nano test tube approach allowed spatiotemporal continuity of observations at single nanopartcile level, revealing that migration and coalescence is the most significant pathway to coarsening of the nanocatalyst, rather than Ostwald ripening. IL-TEM gave unprecedented levels of detail regarding the movement of PdNP on carbon surfaces at the nanoscale, including size-dependent migration and directional movement, opening horizons for optimisation of future catalysts through surface morphology design.

Citation

Lodge, R. W., Rance, G. A., Fay, M. W., & Khlobystov, A. N. (2018). Movement of palladium nanoparticles in hollow graphitised nanofibres: the role of migration and coalescence in nanocatalyst sintering during the Suzuki–Miyaura reaction. Nanoscale, https://doi.org/10.1039/c8nr05267k

• Journal Article Type: Article
• Acceptance Date: Sep 25, 2018
• Online Publication Date: Sep 26, 2018
• Publication Date: Sep 26, 2018
• Deposit Date: Oct 5, 2018
• Publicly Available Date: Sep 27, 2019
• Journal: Nanoscale
• Print ISSN: 2040-3364
• Electronic ISSN: 2040-3372
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1039/c8nr05267k
• Keywords: General Materials Science
• Public URL: https://nottingham-repository.worktribe.com/output/1148545
• Publisher URL: https://pubs.rsc.org/en/Content/ArticleLanding/2018/NR/C8NR05267K#!divAbstract
• Additional Information: : This document is Similarity Check deposited; : Supplementary Information; : Rhys. W. Lodge (ORCID); : Rhys. W. Lodge (ResearcherID); : Graham. A. Rance (ORCID); : Graham. A. Rance (ResearcherID); : Michael. W. Fay (ORCID); : Andrei. N. Khlobystov (ORCID); : Andrei. N. Khlobystov (ResearcherID); : Single-blind; : Received 29 June 2018; Accepted 25 September 2018; Accepted Manuscript published 26 September 2018; Advance Article published 3 October 2018