Structure and chemical composition of supported Pt-Sn electrocatalysts for ethanol oxidation (Record no. 42420)
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| 000 -LEADER | |
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| fixed length control field | 02822nam a2200301Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625124714.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-8111 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Structure and chemical composition of supported Pt-Sn electrocatalysts for ethanol oxidation |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Electrochimica Acta, 50(27), p.5384-5389, 2005 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Carbon supported PtSn alloy and PtSnOx particles with nominal Pt:Sn ratios of 3:1 were prepared by a modified polyol method. High resolution transmission electron microscopy (HRTEM)and X-ray microchemical analysis were used to characterize the composition, size, distribution, and morphology of PtSn particles. The particles are predominantly single nanocrystals with diameters in the order of 2.0-3.0 nm. According to the XRD results, the lattice constant of Pt in the PtSn alloy is dilated due to Sn atoms penetrating into the Pt crystalline lattice. While for PtSnOx nanoparticles, the lattice constant of Pt only changed a little. HRTEM micrograph of PtSnOx clearly shows that the change of the spacing of Pt (1 1 1)plane is neglectable, meanwhile, SnO2 nanoparticles, characterized with the nominal 0.264 nm spacing of SnO2 (1 0 1)plane, were found in the vicinity of Pt particles. In contrast, the HRTEM micrograph of PtSn alloy shows that the spacing of Pt (1 1 1)plane extends to 0.234 nm from the original 0.226 nm. High resolution energy dispersive X-ray spectroscopy (HR-EDS)analyses show that all investigated particles in the two PtSn catalysts represent uniform Pt/Sn compositions very close to the nominal one. Cyclic voltammograms (CV)in sulfuric acid show that the hydrogen ad/desorption was inhibited on the urface of PtSn alloy compared to that on the surface of the PtSnOx catalyst. PtSnOx catalyst showed higher catalytic activity for ethanol electro-oxidation than PtSn alloy from the results of chronoamperometry (CA)analysis and the performance of direct ethanol fuel cells (DEFCs). It is deduced that the unchanged lattice parameter of Pt in the PtSnOx catalyst is favorable to ethanol adsorption and meanwhile, tin oxide in the vicinity of Pt nanoparticles could offer oxygen species conveniently to remove the CO-like species of ethanolic residues to free Pt active sites. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | DIRECT ETHANOL FUEL CELL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ELECTROCATALYST |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | PT-SN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ETHANOL ELECTRO-OXIDATION |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Jiang, L. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Suna, G. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Suna, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Liu, L. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tang, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Li, H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zhoua, B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zhoua, B. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1bMt6f3YHK3esa98ts-x1JkVjPqZLa89R/view?usp=drivesdk">https://drive.google.com/file/d/1bMt6f3YHK3esa98ts-x1JkVjPqZLa89R/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-8111 | 25.06.2025 | 25.06.2025 | Documentos solicitados |