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The motions of iron particles on graphite

Stoneham, AM; (1979) The motions of iron particles on graphite. Applications of Surface Science , 3 (2) 161 - 167. 10.1016/0378-5963(79)90016-3. Green open access

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Small metal particles on a non-metallic substrate undergo complex motions reported in controlled-atmosphere electron microscope experiments by several groups. The interpretation of these motions is discussed. Simple Brownian motion and random diffusion are not adequate explanations for iron particles on graphite. Instead one must invoke forced diffusion, in which particle—particle forces are important, and the effects of inhomogeneity of the substrate. The analysis implies that the catalyst particles are liquid in the case discussed, and that catalytic behaviour can be modified by physical changes of the substrate alone.

Type: Article
Title: The motions of iron particles on graphite
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/0378-5963(79)90016-3
Publisher version: http://dx.doi.org/10.1016/0378-5963(79)90016-3
Language: English
Additional information: Text made available to UCL Discovery by kind permission of Elsevier B.V., 2012.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/59702
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