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  • 1990-1994  (2)
  • 1960-1964
  • benzyl alcohol, formation of anthracene from  (1)
  • exciton formation energy  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Reactions of benzyl alcohol and dibenzyl ether over zeolites (1993)
    Springer
    Catalysis letters 19 (1993), S. 281-291 
    Details
    ISSN: 1572-879X
    Keywords: Benzyl alcohol reactions on zeolites ; anthracene, from benzyl alcohol ; stilbene, from benzyl alcohol ; benzyl alcohol, formation of anthracene from ; stilbene, formation of anthracene from ; zeolites, reaction of benzyl alcohol over
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction of benzyl alcohol and dibenzyl ether on several zeolites was studied in the temperature range 300–500 °C. The major products were benzaldehyde and toluene due to disproportionation, anthracene due to intermolecular alkylation followed by cyclodehydration, benzyltoluenes due to alkylation followed by hydrogenolysis, and stilbene. The alkylation course was strongly influenced by shape selectivity with the large pore zeolites mainly yielding anthracene and the medium pore zeolites benzyltoluene. The formation of stilbene was a new observation which has a bearing on the mechanism of the methanol-to-hydrocarbon reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00767069
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    High-temperature thermal conductivity of NdCoO3 and GdCoO3 (1991)
    Springer
    International journal of thermophysics 12 (1991), S. 207-221 
    Details
    ISSN: 1572-9567
    Keywords: exciton formation energy ; GdCoO3 ; NdCoO3 ; thermal ; conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Thermal conductivity of NdCoO3 and GdCoO3 has been studied from 300 to 1200 K. The conductivity is mainly excitonic, arising from the interactions of the t2g−eg states of cobalt ions in the oxides and shows characteristic maxima at 1030 and 975 K, respectively, corresponding with their semiconductor-metal transition temperatures. Contributions to thermal conductivity by phononic, electronic, ambipolar, and excitonic modes of conduction are calculated from measured thermal and electrical conductivity data in this temperature range. The energy of exciton formation in both the compounds is found to be 0.11 eV, same as in the case of LaCoO3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00506132
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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