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Volumn 37, Issue 13-14, 1998, Pages 1939-1942

High-pressure soft x-ray absorption spectroscopy: A contribution to overcoming the 'pressure gap' in the study of heterogeneous catalytic processes

Author keywords

Copper; Heterogeneous catalysis; Oxidations; X ray absorption spectroscopy

Indexed keywords


EID: 0043077502     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19980803)37:13/14<1939::AID-ANIE1939>3.0.CO;2-T     Document Type: Article
Times cited : (39)

References (44)
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    • (1991) Catalysis Today , vol.9
  • 4
    • 0345362665 scopus 로고    scopus 로고
    • note
    • 2 cyclic gas process at a methanol partial pressure of about 50 mbar.
  • 16
    • 0344500250 scopus 로고    scopus 로고
    • Dissertation, Technische Universität Berlin
    • T. Neisius, Dissertation, Technische Universität Berlin, 1997.
    • (1997)
    • Neisius, T.1
  • 18
    • 0344069141 scopus 로고    scopus 로고
    • note
    • As could be shown in surface-sensitive ex situ photoemission and X-ray absorption studies on copper samples under reaction conditions, these differ from the known copper oxides with regard to spectral shape and intensity of the signals, which would indicate the presence of a copper suboxide phase.
  • 19
    • 0344069140 scopus 로고    scopus 로고
    • note
    • The spectra were recorded by the surface-sensitive electron-yield method (ca. 60 Å depth of information) with monochromated synchrotron radiation from the BESSY synchrotron in Berlin on the PM-1 monochromator.
  • 20
    • 0345362662 scopus 로고    scopus 로고
    • note
    • [21, 22]
  • 23
    • 0345362661 scopus 로고    scopus 로고
    • note
    • [25, 26]
  • 26
    • 0344931316 scopus 로고
    • (Eds.: F. Bassani, F. Fumi, M. P. Tosi), North-Holland, Amsterdam
    • O. K. Andersen in Highlights in Condensed Matter Theory (Eds.: F. Bassani, F. Fumi, M. P. Tosi), North-Holland, Amsterdam, 1985, pp. 82-113.
    • (1985) Highlights in Condensed Matter Theory , pp. 82-113
    • Andersen, O.K.1
  • 28
    • 0344500248 scopus 로고    scopus 로고
    • note
    • 2O).
  • 29
    • 0344500247 scopus 로고    scopus 로고
    • note
    • [25, 34]
  • 35
    • 0344069137 scopus 로고    scopus 로고
    • note
    • -6 s mbar.
  • 36
    • 0344069136 scopus 로고    scopus 로고
    • note
    • [3]
  • 37
    • 0344500246 scopus 로고    scopus 로고
    • note
    • There is good agreement between the methanol proportions as determined by XAS and mass spectroscopy, whereas the amount of CO determined by mass spectroscopy increases with respect to that measured by XAS after about 20 min due to the decomposition of formaldehyde and methanol on the filament of the mass spectrometer.
  • 39
    • 0345362659 scopus 로고    scopus 로고
    • note
    • 2). With the definition of conversion frequency as the number of converted molecules per unit time and per active center, a conversion frequency of 0.3 methanol molecules per second and per copper surface atom is obtained. This is a lower limit for the conversion frequency, as not every surface atom is active and morphological changes at the surface during the actual conversion are not considered.
  • 40
    • 0344069135 scopus 로고    scopus 로고
    • note
    • β) to the surface.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.