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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.

Authors

Rhys. W. Lodge

Graham. A. Rance

Michael. W. Fay

Andrei. N. Khlobystov

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.

Journal Article Type Article
Publication Date Sep 26, 2018
Journal Nanoscale
Print ISSN 2040-3364
Electronic ISSN 2040-3372
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Institution 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, doi:10.1039/c8nr05267k. ISSN 2040-3364
DOI https://doi.org/10.1039/c8nr05267k
Keywords General Materials Science
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

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