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  • 1
    Electronic Resource
    Electronic Resource
    Steady‐state N2O decomposition on Pt and Rh surfaces using a free‐jet molecular‐beam excited by nozzle heating (2000)
    Springer
    Catalysis letters 69 (2000), S. 165-168 
    Details
    ISSN: 1572-879X
    Keywords: N2O decomposition ; molecular beam ; nozzle heating ; Pt ; Rh ; translational energy ; vibrational energy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Steady‐state N2O decomposition reaction on polycrystalline Pt and Rh surfaces has been studied using a supersonic free‐jet molecular beam (2.1 × 1018 molecules/cm2 s). The energy of the incident N2O beam was controlled by a nozzle heating technique in conjunction with a seeding technique. The decomposition rate shows both translational and vibrational energy dependence on the Pt surface. However, there is also the surface temperature dependence of the decomposition rate even varying the incident beam energy, indicating precursor‐mediated dissociation of N2O on the Pt surface. On the other hand, no energy dependence was observed on the Rh surface, suggesting that the decomposition dynamics are different between Pt and Rh surfaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019034326052
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  • 2
    Electronic Resource
    Electronic Resource
    Charge Transfer Between Oxygen and Zirconia (1999)
    Springer
    Journal of thermal analysis and calorimetry 57 (1999), S. 875-881 
    Details
    ISSN: 1572-8943
    Keywords: charge transfer ; Kelvin probe ; oxidation ; work function ; zirconia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The extent of the surface charge, that develops during oxidation of zirconia, is determined using work function measurements for both bulk specimen and thin films. The bulk specimen of yttria-doped zirconia (10 mol%) exhibits maxima of the surface electrical effect at 373 and 973 K (130 and 280 mV, respectively) that can be considered in terms of oxygen chemisorption and oxygen non-stoichiometry. Thin film of undoped zirconia exhibits a maximum at 473 K (260 eV). Addition of yttria (10 mol%) to the thin film results in a substantial reduction of the maximum, to about 140 eV, that is shifted up to 600 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010119014821
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