MARC details
| 000 -LEADER |
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| fixed length control field |
02458nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625153920.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-13323 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
The effect of Mo oxides and TiO2 support on the chemisorption features of linearly adsorbed CO on Pt crystallites: an infrared and photoelectron spectroscopy study |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of Catalysis, 232(1), p.127-136, 2005 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
CO adsorption was studied on Pt and Ptx-Mo (x = 1, 4)catalysts supported on TiO2 by means of temperature-programmed desorption (TPD)and diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS), and significant information on the structure, arrangement, and chemical state of Pt and Mo on the TiO2 support was obtained by a combination of XPS, H2 chemisorption, and DRIFTS. It was concluded that the Mo oxide species forms a solid solution with Pt, while a significant part of the Pt surface atoms are screened by twodimensional Mo oxide nanoclusters. This structural arrangement results in the modification of the chemisorptive properties of Pt, and XPS measurements show that it is partially oxidized; this oxidation state is closely related to the concentration of hydroxyl species on the catalyst's surface. TPD experiments carried out under He flow had shown that the linearly adsorbed COL species on the Ptx-Mo/TiO2 samples desorbs at temperatures below 375 K, which is almost 100 K below the COL species desorption from Pt/TiO2. This low desorption temperature of CO was attributed to its chemical oxidation at the boundaries of the Mo oxide nanoclusters by the OH species supplied by MoO(OH)3, which was detected by XPS as the most abundant oxidation state. In addition, the execution of TPD experiments under H2 flow resulted in the desorption of the COL species for all three samples at significantly higher temperatures, 460, 425, and 390 K, for Pt/TiO2, Pt-Mo/TiO2, and Pt4-Mo/TiO2, respectively. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
PTMO ELECTROCTATALYST |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
FUEL CELLS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
TIO2 SUPPORT |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CO CHEMISORPTION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
DRIFTS |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Zafeiratos, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Papakonstantinou, G. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Jacksic, M.M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Neophytides, S.G. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1ZE4VZCfUDPLcnJzytXTs4mRq00hHd8lY/view?usp=drivesdk">https://drive.google.com/file/d/1ZE4VZCfUDPLcnJzytXTs4mRq00hHd8lY/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
