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  • Chemistry  (2)
  • INORGANIC AND PHYSICAL CHEMISTRY  (2)
  • Atomic and Molecular Physics  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Characterization study of polycrystalline tin oxide surfaces before and after reduction in CO (1992)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 19 (1992), S. 559-564 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Polycrystalline tin oxide surfaces have been examined before and after reduction in 40 Torr of CO at 100 and 175°C using Auger electron spectroscopy (AES), electron spectroscopy for chemical analysis (ESCA), ion-scattering spectroscopy (ISS) and electron-stimulated desorption (ESD). The changes in the surface composition and chemical states of the surface species generally are subtle for the reductive conditions used. Some of the SnO2 is reduced to SnO and significant changes do occur with regard to the amounts and chemical forms of the hydrogen-containing species remaining after both the 100 and 175°C reductions.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.7401901104
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Development of a hyperthermal oxygen-atom generator (1992)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 19 (1992), S. 325-330 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: A source that is compact, durable and mounts on a standard standard ultrahigh vacuum (UHV) flange has been developed for the generation of hyperthermal oxygen atoms. In this source oxygen atoms permeate through an Ag membrane held at 500°C and are then emitted toward the target from the vacuum side of the membrane by electron-stimulated desorption. The current prototype model generates useable O-atom fluxes of ∼1012 atoms cm-2 s-1, and future modifications should increase this flux by 1-3 orders of magnitude. Based on the O+ energy distribution, the average O neutral energy is ∼5 eV with a fairly broad distribution (full width at half-maximum ∼3.6 eV). The information required for the development of this source and the design of the source are prsented.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.740190161
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    Paper (German National Licenses)
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  • 3
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    Unknown
    Characterization study of polycrystalline tin oxide surfaces before and after reduction in CO (1990)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Polycrystalline tin oxide surfaces have been examined before and after reduction in 40 Torr of CO at 100 and 175 C using Auger electron spectroscopy (AES), electron spectroscopy for chemical analysis (ESCA), ion scattering spectroscopy (ISS) and electron stimulated desorption (ESD). The changes in the surface composition and chemical states of the surface species generally are subtle for the reductive conditions used. However, significant changes do occur with regard to the amounts and the chemical forms of the hydrogen-containing species remaining after both the 100 and 175 C reductions.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Type: Low-Temperature CO-Oxidation Catalysts for Long-Life CO2 Lasers; p 231-250
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Evidence of alloy formation during reduction of platinized tin oxide surfaces (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Ion scattering spectroscopy, Auger electron spectroscopy, and electron spectroscopy for chemical analysis have been used to examine a platinized tin oxide catalyst surface before, during, and after reduction by annealing under vacuum at 250 to 450 C. These techniques were then used to examine the reduced surface after a room-temperature, low-pressure oxygen exposure. The spectral results and the behavior of the reduced surface toward oxygen exposure both indicate that a Pt/Sn alloy is produced during reduction.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Type: Journal of Catalysis (ISSN 0021-9517); 115; 132-137
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Small Vacuum Compatible Hyperthermal Atom Generator (1998)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: A vacuum compatible hyperthermal atom generator includes a membrane having two sides. the membrane having the capability of dissolving atoms into the membrane's bulk. A first housing is furnished in operative association with the first side of the membrane to provide for the exposure of the first side of the membrane to a gas species. A second housing is furnished in operative association with the second side of the membrane to provide a vacuum environment having a pressure of less than 1 x 10(exp -3) Torr on the second side of the membrane. Exciting means excites atoms adsorbed on the second side of the membrane to a non-binding state so that a portion from 0% to 100% of atoms adsorbed on the second side of is the membrane are released from the second side of the membrane primarily as an atom beam.
    Keywords: Atomic and Molecular Physics
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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