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  • 1
    Electronic Resource
    Electronic Resource
    Marked difference in activity of alumina catalysts for selective catalytic reduction of nitrogen monoxide by ethene in excess oxygen (1997)
    Springer
    Catalysis letters 49 (1997), S. 169-174 
    Details
    ISSN: 1572-879X
    Keywords: selective catalytic reduction ; nitrogen oxide ; nitrogen dioxide ; hydrocarbons ; Al2O3 ; oxidation of nitrogen oxide to nitrogen dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Alumina is well-known as an effective catalyst for the title reaction. The present study revealed that the activity of an alumina catalyst for the reaction largely depended on its type. A critical factor affecting the activity of an alumina was neither the surface area nor pore structure, but the purity; the higher the purity, the higher the activity. Active alumina catalysts showed high activity for both the oxidation of NO to NO2 and the reduction of NO2 by ethene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019030027115
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Long lifetime operation of an ArF-excimer laser (1996)
    Springer
    Applied physics 63 (1996), S. 229-235 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract.  An experimental investigation to improve the lifetime of a discharge-excited ArF-excimer laser is presented. The three dominant factors restricting its lifetime are CF4 generation in the laser gas, color-center formation in the optics and input power density reduction due to electrode ablation. Copper electrodes were superior to nickel electrodes in regard to electrode ablation. A gas lifetime of more than 109 shots (about one month at 400 Hz) is shown for an ArF-excimer laser with a liquid-nitrogen trap and high-temperature zirconium alloy trap.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01833791
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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