Rapid and Semi-automated Method for Analysis of the Number of Atoms of
Ultra-small Platinum Clusters on Carbon
Keyword(s):
Abstract Very high angle (~100 mrad) annular dark-field (HAADF) images in a dedicated scanning transmission electron microscope (STEM) can be used to quantitatively measure the number of atoms in a cluster on a support material. We have developed a computer program which will automatically find the location of the particles and then integrate the intensity to find the number of atoms per cluster. We have examined ultra-small Pt clusters on a C substrate by this novel mass-spectroscopic technique. We discovered that the Pt clusters maintain their three-dimensional shape, and are probably spherical.
2000 ◽
Vol 6
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pp. 353-357
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1991 ◽
Vol 49
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pp. 416-417
2012 ◽
Vol 116
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pp. 13343-13352
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Vol 22
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pp. 4532-4544
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2012 ◽
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pp. 041804
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2010 ◽
Vol 44
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pp. 111-121
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