Stability of supported organometallic clusters probed by a mass-sensitive TEM technique

A. Singhal; J. Murray Gibson; M. M.J. Treacy; P. D. Lane; J. R. Shapley

doi:10.1021/jp953718n

Stability of supported organometallic clusters probed by a mass-sensitive TEM technique

A. Singhal, J. Murray Gibson, M. M.J. Treacy, P. D. Lane, J. R. Shapley

Research output: Contribution to journal › Article › peer-review

Abstract

Using a refined quantitative TEM technique, we measure the relative mass of individual organometallic rhenium clusters on a graphite support. We observe that whereas 6-Re atom species preserve integrity on precipitation from solution, fragmentation and sintering occur in 7- and 8-Re atoms cluster species. These organometallics are candidates as catalytic materials. The technique is based on high-angle dark-field scanning transmission electron microscope (STEM) imaging. The emphasis in this analysis is on using very high angles of scattering to suppress coherence effects from these clusters and on reliably measuring their relative experimental elastic scattering cross sections.

Original language	English (US)
Pages (from-to)	6385-6388
Number of pages	4
Journal	Journal of physical chemistry
Volume	100
Issue number	16
DOIs	https://doi.org/10.1021/jp953718n
State	Published - Apr 18 1996
Externally published	Yes

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Engineering(all)
Physical and Theoretical Chemistry

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abstract = "Using a refined quantitative TEM technique, we measure the relative mass of individual organometallic rhenium clusters on a graphite support. We observe that whereas 6-Re atom species preserve integrity on precipitation from solution, fragmentation and sintering occur in 7- and 8-Re atoms cluster species. These organometallics are candidates as catalytic materials. The technique is based on high-angle dark-field scanning transmission electron microscope (STEM) imaging. The emphasis in this analysis is on using very high angles of scattering to suppress coherence effects from these clusters and on reliably measuring their relative experimental elastic scattering cross sections.",

author = "A. Singhal and Gibson, {J. Murray} and Treacy, {M. M.J.} and Lane, {P. D.} and Shapley, {J. R.}",

year = "1996",

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journal = "Journal of Physical Chemistry",

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AU - Singhal, A.

AU - Gibson, J. Murray

AU - Treacy, M. M.J.

AU - Lane, P. D.

AU - Shapley, J. R.

PY - 1996/4/18

Y1 - 1996/4/18

N2 - Using a refined quantitative TEM technique, we measure the relative mass of individual organometallic rhenium clusters on a graphite support. We observe that whereas 6-Re atom species preserve integrity on precipitation from solution, fragmentation and sintering occur in 7- and 8-Re atoms cluster species. These organometallics are candidates as catalytic materials. The technique is based on high-angle dark-field scanning transmission electron microscope (STEM) imaging. The emphasis in this analysis is on using very high angles of scattering to suppress coherence effects from these clusters and on reliably measuring their relative experimental elastic scattering cross sections.

AB - Using a refined quantitative TEM technique, we measure the relative mass of individual organometallic rhenium clusters on a graphite support. We observe that whereas 6-Re atom species preserve integrity on precipitation from solution, fragmentation and sintering occur in 7- and 8-Re atoms cluster species. These organometallics are candidates as catalytic materials. The technique is based on high-angle dark-field scanning transmission electron microscope (STEM) imaging. The emphasis in this analysis is on using very high angles of scattering to suppress coherence effects from these clusters and on reliably measuring their relative experimental elastic scattering cross sections.

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JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 16

ER -

Stability of supported organometallic clusters probed by a mass-sensitive TEM technique

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