Publications of Jörg Melsheimer
All genres
Talk (9)
2003
Talk
Jentoft, Friederike C., Barbara S. Klose, Alexander H.P. Hahn, Rolf E. Jentoft, Thorsten Ressler, Rafat Ahmad, Jörg Melsheimer, Xiaobo Yang and Robert Schlögl: Role of Bulk Phase in Sulfated Zirconia Catalysts.
(18th North American Catalysis Society Meeting, Cancun, Mexico, Jun 2003).
Talk
Melsheimer, Jörg: Improved Experimental Setup for In Situ DR UV/Vis/near-IR Spectroscopy of n-Alkane Isomerization on Sulfated Zirconia.
(7th International Conference on Chemistry and its Role in Development ICCRD´7, Mansoura & Sharm El-Sheikh, Egypt, Apr 2003).
2002
Talk
Melsheimer, Jörg: A contribution of in situ UV/Vis spectroscopy to the identification of species formed during the isomerization of n-butane and n-pentane on sulfated zirconia.
(Seminar of the Department of Chemistry at Yarmouk University, Irbid, Jordan, May 2002).
Talk
Thiede, Manfred and Jörg Melsheimer: A newly developed attachment to the Lambda 9 spectrometer for in situ reflectance measurements of catalysts at temperatures up to 623 K.
(PerkinElmer Colloquium Optical Spectroscopy - COSP 2002, Berlin, Nov 2002).
Talk
Wrabetz, Sabine, Rafat Ahmad, Alexander H.P. Hahn, Jörg Melsheimer and Friederike C. Jentoft: Adsorption und Reaktion von Alkanen an Zirconiumdioxidkatalysatoren.
(101. Hauptversammlung der Deutschen Bunsen-Gesellschaft für Physikalische Chemie, Potsdam, Germany, May 2002).
2001
Talk
Melsheimer, Jörg: Possibilities of in situ UV/Vis/near-IR spectroscopy in the catalysis research.
(The 6th Conference on Chemistry and its Role in Development, Mansoura, Egypt, Apr 2001).
2000
Talk
Melsheimer, Jörg: Untersuchung von Zwischenprodukten, gebildet während der heterogenen Katalyse und des Oxidationszustandes von Übergangsmetallionen von Katalysatoren: Möglichkeiten und Grenzen der in situ UV/Vis/near-IR-Reflexionsspektroskopie.
(Kolloquium des Institutes für Anorganische Chemie, Technische Universität Chemnitz, Chemnitz, Germany, Oct 2000).
Talk
Melsheimer, Jörg: Ist die in situ UV-Vis-NIR diffuse Reflexionsspektroskopie eine nützliche Methode in der Katalysatorforschung?
(Gemeinsames Universitätskolloquium der Institute für Anorganische Chemie der HU, FU u. TU Berlin, Humboldt-Universität zu Berlin, Berlin, Germany, Jan 2000).
Poster (18)
2004
Poster
Jentoft, Friederike C., Genka Tzolova-Müller, Rafat Ahmad, Jörg Melsheimer, Sabine Wrabetz, Xiaobo Yang, Robert Schlögl, and : Analysis of Sites and Deposits on Sulfated Zirconia during and after Alkane Isomerization by In Situ UV-vis Spectroscopy, Temporal Analysis of Products and Calorimetry.
(13th International Congress on Catalysis, Paris/France, Jul 2004).
Poster
Knobl, Stefan, Dirk Niemeyer, Jörg Melsheimer, Robert Schlögl, Norly Abdullah and Sharifah Bee Abd Hamid: A contribution of in situ UV/Vis/NIR spectroscopy to characterize molybdenum oxide catalysts.
(Jahrestagung deutscher Katalytiker, Weimar, Mar 2004).
Poster
Tzolova-Müller, Genka, Jörg Melsheimer and Friederike C. Jentoft: Reaction of Surface Deposits on Deactivated Sulfated Zirconia with O2 and H2O Monitored by In Situ DR UV-vis Spectroscopy and Mass Spectrometry.
(XXXVII. Jahrestreffen Deutscher Katalytiker, Weimar, Mar 2004).
2003
Poster
Ahmad, Rafat, Jörg Melsheimer, Xiaobo Yang, Genka Tzolova-Müller and Friederike C. Jentoft: Comparison of Tetragonal and Ordered Mesoporous Sulfated ZrO2: Alkane Isomerization Studied by In Situ DR UV-vis Spectroscopy.
(Europacat-VI, Innsbruck / Austria, Aug 2003).
Poster
Melsheimer, Jörg, Rafat Ahmad, Xiaobo Yang and Friederike C. Jentoft: Correlation of UV/Vis Features and Reaction Profile during Alkane Isomerization on Ordered Mesoporous and Tetragonal Sulfated ZrO2.
(XXXVI. Jahrestreffen Deutscher Katalytiker, Weimar, Mar 2003).
Poster
Melsheimer, Jörg, Manfred Thiede, Rafat Ahmad and Friederike C. Jentoft: Improved experimental setup for in situ UV-vis-near-IR spectroscopy under catalytic conditions.
(International Congress on Operando Spectroscopy, Lunteren, Netherlands, Mar 2003).
2002
Poster
Ahmad, Rafat, Jörg Melsheimer and Friederike C. Jentoft: In situ diffuse reflectance UV/Vis spectroscopy investigations of alkane activation catalyzed by sulfated zirconia.
(XXXV. Jahrestreffen Deutscher Katalytiker, Weimar, Mar 2002).
Poster
, Jörg Melsheimer, Jutta Kröhnert, Rafat Ahmad, Friederike C. Jentoft and Robert Schlögl: Studies of UV/Vis/near-IR bands of H4-xCsxPVMo11O40 (x=0,2) compounds in dependence upon temperature and gas atmosphere.
(XXXV. Jahrestreffen Deutscher Katalytiker, Weimar, Germany, Mar 2002).
Poster
Melsheimer, Jörg, Jutta Kröhnert, Rafat Ahmad, and Friederike C. Jentoft: Influence of the gas atmosphere and temperature on the UV/VIS absorption bands and the band gap energies of H4-xCsxPVMo11O40 (x = 0, 2): experiment and theory.
(The Third Jordanian International Conference of Chemistry, Irbid, Jordan, Apr 2002).
Poster
Thiede, Manfred and Jörg Melsheimer: Reflectance spectroscopy: critical remarks on the evaluation of diffuse reflectance spectra.
(PerkinElmer Colloquium Optical Spectroscopy - COSP 2002, Berlin, Nov 2002).
Poster
Yang, Xiaobo, Rafat Ahmad, Jörg Melsheimer, Barbara S. Klose and Friederike C. Jentoft: In Situ Spectroscopic Study of Isomerisation of Light Alkanes over Sulfated Zirconia Catalysts.
(DGMK Conference 'Chances for Innovative Processes at the Interface between Refining and Petrochemistry', Berlin, Sep 2002).
2001
Poster
Ahmad, Rafat, Jörg Melsheimer, Friederike C. Jentoft and Robert Schlögl: Investigation of influence of Fe content in Fe-promoted zirconia: UV/Vis/near-IR spectroscopy and conversion of n-butane.
(5th European Congress on Catalysis: EUROPACAT V, Limerick, Ireland, Sep 2001).