Thermal desorption in the pressure gap and at high pressure using a Micro Knudsen Effusion Cell

Catalysis Letters - Tập 14 Số 3 - Trang 251-261 - 1992
Guinn, Keith V.1, Herz, Richard K.1
1Chemical Engineering Group, Department of Applied Mathematics and Engineering Science, University of California, San Diego, La Jolla, USA

Tóm tắt

A new method and apparatus are described for performing thermal desorption at relatively high adsorbate pressure over single crystals and over porous adsorbents and catalysts. The apparatus, a Micro Knudsen Effusion Cell, encloses a sample in a small chamber or cell and allows only a limited pumping speed from the cell. Adsorbate pressures from ultrahigh vacuum to industrial reaction pressures are attainable depending on the ratio of surface area to pumping speed.

Tài liệu tham khảo

citation_journal_title=Catal. Rev.-Sci. Eng.; citation_author=J.L. Falconer, J.A. Schwarz; citation_volume=25; citation_publication_date=1983; citation_pages=141; citation_id=CR1 citation_journal_title=Surf. Sci.; citation_author=D.A. King; citation_volume=47; citation_publication_date=1975; citation_pages=384; citation_id=CR2 citation_journal_title=J. Catal.; citation_author=J.L. Falconer, R.J. Madix; citation_volume=48; citation_publication_date=1977; citation_pages=262; citation_id=CR3 citation_journal_title=Surf. Sci.; citation_author=J.L. Taylor, W.H. Weinberg; citation_volume=78; citation_publication_date=1978; citation_pages=259; citation_id=CR4 citation_title=Direct Comparison of Thermal Desorption from Supported Metal and Metal Single Crystal Catalysts; citation_publication_date=1990; citation_id=CR5; citation_author=K.V. Guinn; citation_author=R.K. Herz; citation_publisher=Am. Inst. Chem. Eng. citation_title=Ph.D. Dissertation; citation_publication_date=1991; citation_id=CR6; citation_author=K.V. Guinn; citation_publisher=University of California citation_journal_title=Surf. Sci.; citation_author=G.A. Somorjai; citation_volume=89; citation_publication_date=1979; citation_pages=496; citation_id=CR7 citation_journal_title=Surf. Sci.; citation_author=M.J. Mummey, L.D. Schmidt; citation_volume=109; citation_publication_date=1981; citation_pages=43; citation_id=CR8 citation_journal_title=Appl. Surf. Sci.; citation_author=M. Ungarish, L.D. Schmidt; citation_volume=17; citation_publication_date=1983; citation_pages=23; citation_id=CR9 citation_journal_title=Advan. Catal.; citation_author=R.J. Cvetanovic, Y. Amenomiya; citation_volume=17; citation_publication_date=1967; citation_pages=103; citation_id=CR10 citation_journal_title=Vacuum; citation_author=P.A. Redhead; citation_volume=12; citation_publication_date=1962; citation_pages=203; citation_id=CR11 citation_journal_title=Chem. Eng. Sci.; citation_author=J.R. Bowen, A. Acrivos, A.K. Oppenheim; citation_volume=18; citation_publication_date=1963; citation_pages=177; citation_id=CR12 citation_journal_title=J. Catal.; citation_author=R.K. Herz, J.B. Kiela, S.P. Marin; citation_volume=73; citation_publication_date=1982; citation_pages=66; citation_id=CR13 citation_journal_title=J. Catal.; citation_author=R.J. Gorte; citation_volume=75; citation_publication_date=1982; citation_pages=164; citation_id=CR14 citation_journal_title=Surf. Sci.; citation_author=C. Harendt, J. Goschnick, W. Hirschwald; citation_volume=152/153; citation_publication_date=1985; citation_pages=453; citation_id=CR15 citation_journal_title=Surf. Sci. Lett.; citation_author=L.D. Peterson, S.D. Kevan; citation_volume=235; citation_publication_date=1990; citation_pages=L285; citation_id=CR16 citation_journal_title=Surf. Sci.; citation_author=E.G. Seebauer, A.C.F. Kong, L.D. Schmidt; citation_volume=176; citation_publication_date=1986; citation_pages=134; citation_id=CR17 citation_journal_title=Surf. Sci.; citation_author=C.T. Campbell, G. Ertl, H. Kuipers, J. Segner; citation_volume=107; citation_publication_date=1981; citation_pages=220; citation_id=CR18 citation_title=X-ray Photoelctron Spectroscopy of Solid Surfaces; citation_publication_date=1988; citation_id=CR19; citation_author=V.I. Nefedov; citation_publisher=VSP citation_inbook_title=Comprehensive Chemical Kinetics. Vol. 19. Simple Processes at the Gas-Solid Interface; citation_publication_date=1984; citation_pages=47; citation_id=CR20; citation_author=M.A. Morris; citation_author=M. Bowker; citation_author=D.A. King; citation_publisher=Elsevier