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Issue 40, 2018
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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

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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 spatiotemporally continuous observations at the single nanoparticle 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 the optimisation of future catalysts through surface morphology design.

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

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Publication details

The article was received on 29 Jun 2018, accepted on 25 Sep 2018 and first published on 26 Sep 2018


Article type: Paper
DOI: 10.1039/C8NR05267K
Nanoscale, 2018,10, 19046-19051

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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

    Rhys. W. Lodge, Graham. A. Rance, Michael. W. Fay and Andrei. N. Khlobystov, Nanoscale, 2018, 10, 19046
    DOI: 10.1039/C8NR05267K

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