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  • 1
    Electronic Resource
    Electronic Resource
    Importance of lattice contraction in surface plasmon resonance shift for free and embedded silver particles (2001)
    Springer
    The European physical journal 13 (2001), S. 245-253 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 61.46.+w Clusters, nanoparticles, and nanocrystalline materials – 78.40.-q Absorption and reflection spectra: visible and ultraviolet – 78.66.-w Optical properties of specific thin films, surfaces, and low-dimensional structures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The size evolution of the surface plasmon resonance was investigated for free and embedded silver particles between about 2 to 10 nm in size. The crystal lattice of such particles as analyzed by high resolution electron microscopy show linear contraction with reciprocal particle size. Based on this, a model was presented by combining the lattice contraction of particles and the free path effect of electrons to predict the size evolution of the resonance. The results reveal a contribution of the lattice contraction to the resonance shift according to a roughly linear relation that changes slightly with particle radius (〉 1.0 nm) and surrounding media. This surface plasmon resonance shift proceeds linearly with reciprocal size for Ag particles in vacuum and argon, but for Ag particles embedded in glass it appears to be independent of the radius down to nearly 1 nm. All predictions are quantitatively compared to previously reported experimental data and a good agreement is obtained. An unusual red-shift observed for Ag particles in glass may be attributed to a thermal expansion mismatch induced lattice dilatation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530170273
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  • 2
    Electronic Resource
    Electronic Resource
    Kontinuierliche Bestimmung der Konzentration von NO2 und (NO + NO2) in chemischen Produktionsanlagen (1968)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 40 (1968), S. 61-64 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es wurde eine Apparatur zur kontinuierlichen Bestimmung der NO2- bzw. (NO + NO2)-Konzentration in Gasströmen chemischer Produktionsanlagen entwickelt. Zur direkten NO2-Messung dient ein für den Betrieb geeignetes Photometer. Um die Summenkonzentration von NO und NO2 zu ermitteln, wird NO durch J2O5 bei 110 °C zu NO2 oxidiert und die gesamte NO2-Menge bestimmt. Da die Bestimmung des Oxidationsgrades im Bereich hoher Konzentrationen an nitrosen Gasen außergewöhnliche Schwierigkeiten bereitet, wurde ein Verdünnungsverfahren entwickelt. Die beschriebene Apparatur wurde an einer Salpetersäure-Absorptionsanlage erprobt.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330400112
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  • 3
    Electronic Resource
    Electronic Resource
    Übergangsmetallchalkogenverbindungen.Die hier mitgeteilten Ergebnisse sind zum Teil in der Dissertation von H. HOFMEISTER (Göttingen 1960) beschrieben, alle Messungen wurden jedoch neu durchgeführt. Bildung und Zerfall von Chalkogenoanionen der Übergangsmetalle in wäßriger Lösung (1969)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 371 (1969), S. 74-80 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The stability of thio- and selenoanions of transition metals has been investigated by kinetic measurements. Their formation and decomposition are described as functions of pH.
    Notes: Die Stabilität von Thio- und Selenoanionen von Übergangsmetallen wird mit Hilfe von kinetischen Messungen an einigen Beispielen untersucht. Die Abhängigkeit der Bildung und des Zerfalls solcher Ionen vom pH-Wert wird in einem qualitativen Schema angegeben.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19693710109
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    Paper (German National Licenses)
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