Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Anke S. Wörz"'
Autor:
Gerd Ganteför, Ueli Heiz, Xin Tang, Young Dok Kim, Stéphane Abbet, Y. Luo, D. H. Fairbrother, Andreas Dollinger, Ken Judai, John Schneider, Anke S. Wörz, Kit H. Bowen, Sebastian Proch
Publikováno v:
Phys. Chem. Chem. Phys.. 16:6735-6742
Recent research in heterogeneous catalysis, especially on size-selected model systems under UHV conditions and also in realistic catalytic environments, has proved that it is necessary to think in terms of the exact number of atoms when it comes to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::007eaf9635506a9d7d43001189360538
https://doi.org/10.1039/c4cp00160e
https://doi.org/10.1039/c4cp00160e
Autor:
Ken Judai, Matthias Arenz, Stéphane Abbet, Martin A. Röttgen, Anke S. Wörz, Ulrich Heiz, Claude R. Henry, Jean-Marie Antonietti
Publikováno v:
Journal of the American Chemical Society. 129:9635-9639
In the present work, the CO oxidation rate on size-selected Pd clusters supported on thin MgO films is investigated in pulsed molecular beam experiments. By varying the cluster coverage independent of the cluster size, we were able to change the rati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fef0db1db7d914d46cbae51d02a9a4b
https://doi.org/10.1021/ja068437f
https://doi.org/10.1021/ja068437f
Autor:
Gianfranco Pacchioni, Stéphane Abbet, Ken Judai, Livia Giordano, Anke S. Wörz, Annalisa Del Vitto, Ueli Heiz, Jean-Marie Antonietti
Publikováno v:
Phys. Chem. Chem. Phys.. 7:955-962
The acetylene trimerization on the group VIII transition metal atoms, Rh and Pd, as well as on Ag atoms supported on MgO thin films has been studied experimentally and theoretically. The three metal atoms with the atomic configurations 4d(8)5s(1) (Rh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f3b91d340e3818523972abfce6d4406
https://doi.org/10.1039/b414399j
https://doi.org/10.1039/b414399j
Publikováno v:
International Journal of Mass Spectrometry. 229:99-106
We present an experimental scheme for measuring turn-over frequencies (TOFs) and obtaining mechanistic details of catalytic processes on small clusters on surfaces with high sensitivity. The scheme uses a newly designed pulsed, piezo-electric driven
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b0fb6a912da92f8ccff8123ce798160
https://doi.org/10.1016/s1387-3806(03)00261-6
https://doi.org/10.1016/s1387-3806(03)00261-6
Au atoms have been deposited on oxidized and reduced TiO2 thin films grown on Mo(110). The gold binding sites and the occurrence of Au-TiO2 charge transfer were identified by measuring infrared spectra as a function of temperature and substrate prepa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5362f16b20af4b1f8bd16df462145670
http://hdl.handle.net/10281/968
http://hdl.handle.net/10281/968
Autor:
Hannu Häkkinen, Ueli Heiz, Anke S. Wörz, Stéphane Abbet, Ken Judai, Uzi Landman, Bokwon Yoon, Jean-Marie Antonietti
Publikováno v:
Science (New York, N.Y.). 307(5708)
Gold octamers (Au 8 ) bound to oxygen-vacancy F-center defects on Mg(001) are the smallest clusters to catalyze the low-temperature oxidation of CO to CO 2 , whereas clusters deposited on close-to-perfect magnesia surfaces remain chemically inert. Ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3494f075965ca6ba1355f1adfce0542b
https://pubmed.ncbi.nlm.nih.gov/15662008
https://pubmed.ncbi.nlm.nih.gov/15662008
Publikováno v:
Journal of the American Chemical Society. 125(26)
The CO + NO reaction (2CO + 2NO --N(2) + 2CO(2)) on small size-selected palladium clusters supported on thin MgO(100) films reveals distinct size effects in the size range Pd(n) with nor = 30. Clusters up to the tetramer are inert, while larger clust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baba1e9c415394e0e628294abd9aa322
https://pubmed.ncbi.nlm.nih.gov/12823018
https://pubmed.ncbi.nlm.nih.gov/12823018
Autor:
Anke S. Wörz, Gianfranco Pacchioni, Anna Maria Ferrari, Stéphane Abbet, Ueli Heiz, Livia Giordano, Ken Judai
A review. The polymn. of acetylene, studied exptl. and theor. on nano catalysts consisting of nanoscale clusters of different size and elemental compn., is reviewed. As on bulk systems palladium is the most active transition metal for this reaction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b7469526eece51e61a0d08c0767f809
http://hdl.handle.net/2318/117409
http://hdl.handle.net/2318/117409
Autor:
Gianfranco Pacchioni, Cristiana Di Valentin, Ueli Heiz, Stéphane Abbet, Annalisa Del Vitto, Ken Judai, Anke S. Wörz
Methanol adsorption on MgO thin films has been studied by Fourier transform infrared (FTIR) and thermal desorption spectroscopies (TDS), and by ab initio cluster model calculations. Depending on the preparation conditions, films with various concentr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::401a0bcf0cf67c5601090dfbad5ef879
http://hdl.handle.net/10281/23781
http://hdl.handle.net/10281/23781
Autor:
and Anke S. Wörz, Stéphane Abbet, Livia Giordano and, Gianfranco Pacchioni, Ulrich Heiz, Ken Judai
Publikováno v:
Scopus-Elsevier
The interaction of carbon monoxide with Ag, Rh, and Pd atoms deposited on MgO thin films has been studied by thermal desorption and Fourier transform infrared spectroscopies. To obtain an atomistic view of the surface complexes, we performed density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e841451f56e0546590b4bd8bde52629
http://www.scopus.com/inward/record.url?eid=2-s2.0-0141563465&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0141563465&partnerID=MN8TOARS