High resolution Auger electron spectroscopy and microscopy of a supported metal catalyst

Jingyue Liu; G. G. Hembree; G. E. Spinnler; J. A. Venables

doi:10.1016/0039-6028(92)90118-P

High resolution Auger electron spectroscopy and microscopy of a supported metal catalyst

Jingyue Liu, G. G. Hembree, G. E. Spinnler, J. A. Venables

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

26 Scopus citations

Abstract

High spatial resolution Auger electron spectra and scanning Auger microscope (SAM) images of supported metal catalysts have been obtained in a UHV scanning transmission electron microscope. Ag/α-Al₂O₃ was used as a model catalyst system, where silver was evaporated, in situ, onto polycrystalline alumina carriers. Silver particles, as small as 2 nm in diameter, were clearly revealed in SAM images with high contrast. On large islands, an edge resolution < 3 nm was achieved. Information about surface and bulk properties of supported catalysts can be extracted from images formed with different signals generated from the same area which are obtained simultaneously.

Original language	English (US)
Pages (from-to)	L111-L117
Journal	Surface Science
Volume	262
Issue number	3
DOIs	https://doi.org/10.1016/0039-6028(92)90118-P
State	Published - Feb 15 1992

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(92)90118-P

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@article{260cabdcbde04223a16dcd3b120ba964,

title = "High resolution Auger electron spectroscopy and microscopy of a supported metal catalyst",

abstract = "High spatial resolution Auger electron spectra and scanning Auger microscope (SAM) images of supported metal catalysts have been obtained in a UHV scanning transmission electron microscope. Ag/α-Al2O3 was used as a model catalyst system, where silver was evaporated, in situ, onto polycrystalline alumina carriers. Silver particles, as small as 2 nm in diameter, were clearly revealed in SAM images with high contrast. On large islands, an edge resolution < 3 nm was achieved. Information about surface and bulk properties of supported catalysts can be extracted from images formed with different signals generated from the same area which are obtained simultaneously.",

author = "Jingyue Liu and Hembree, {G. G.} and Spinnler, {G. E.} and Venables, {J. A.}",

note = "Funding Information: This work was supportedb y the Shell Development Company and made use of the ASU Facility for HREM, supportedb y NSF via grant DMR-8913384.",

year = "1992",

month = feb,

day = "15",

doi = "10.1016/0039-6028(92)90118-P",

language = "English (US)",

volume = "262",

pages = "L111--L117",

journal = "Surface Science",

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T1 - High resolution Auger electron spectroscopy and microscopy of a supported metal catalyst

AU - Liu, Jingyue

AU - Hembree, G. G.

AU - Spinnler, G. E.

AU - Venables, J. A.

N1 - Funding Information: This work was supportedb y the Shell Development Company and made use of the ASU Facility for HREM, supportedb y NSF via grant DMR-8913384.

PY - 1992/2/15

Y1 - 1992/2/15

N2 - High spatial resolution Auger electron spectra and scanning Auger microscope (SAM) images of supported metal catalysts have been obtained in a UHV scanning transmission electron microscope. Ag/α-Al2O3 was used as a model catalyst system, where silver was evaporated, in situ, onto polycrystalline alumina carriers. Silver particles, as small as 2 nm in diameter, were clearly revealed in SAM images with high contrast. On large islands, an edge resolution < 3 nm was achieved. Information about surface and bulk properties of supported catalysts can be extracted from images formed with different signals generated from the same area which are obtained simultaneously.

AB - High spatial resolution Auger electron spectra and scanning Auger microscope (SAM) images of supported metal catalysts have been obtained in a UHV scanning transmission electron microscope. Ag/α-Al2O3 was used as a model catalyst system, where silver was evaporated, in situ, onto polycrystalline alumina carriers. Silver particles, as small as 2 nm in diameter, were clearly revealed in SAM images with high contrast. On large islands, an edge resolution < 3 nm was achieved. Information about surface and bulk properties of supported catalysts can be extracted from images formed with different signals generated from the same area which are obtained simultaneously.

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High resolution Auger electron spectroscopy and microscopy of a supported metal catalyst

Abstract

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