On the structure of Au/Pd bimetallic nanoparticles
We performed a study on bimetallic Au/Pd nanoparticles using aberration corrected electron microscopy along with molecular dynamics simulations to investigate the features of specific atomic sites at the surface, which can be related to the high catalytic activity properties of the particles. The...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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American Chemical Society
2007
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| Online Access: | http://eprints.uanl.mx/8954/2/On%20the%20Structure%20of%20Au_Pd%20Bimetallic%20Nanoparticles.pdf |
| _version_ | 1824370878534647808 |
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| author | Mejía Rosales, Sergio Fernández Navarro, Carlos Javier Pérez Tijerina, Eduardo Blom, Douglas A. Allard, Lawrence F. Yacamán, Miguel José |
| author_facet | Mejía Rosales, Sergio Fernández Navarro, Carlos Javier Pérez Tijerina, Eduardo Blom, Douglas A. Allard, Lawrence F. Yacamán, Miguel José |
| author_sort | Mejía Rosales, Sergio |
| collection | Repositorio Institucional |
| description | We performed a study on bimetallic Au/Pd nanoparticles using aberration corrected electron microscopy
along with molecular dynamics simulations to investigate the features of specific atomic sites at the surface,
which can be related to the high catalytic activity properties of the particles. The calculations mimic the
growth of nanoparticles through a cooling process from a molten solid to a crystalline structure at room
temperature. We found that the final structure for the alloy particles is neither a cuboctahedral nor an icosahedral,but a complex structure that has a very rough surface and unique isolated Pd sites surrounded by Au atoms. We also found that there is predominance of three specific Pd sites at the surface, which can be directly
related to the catalytic activity of the nanoparticles |
| format | Article |
| id | eprints-8954 |
| institution | UANL |
| language | English |
| publishDate | 2007 |
| publisher | American Chemical Society |
| record_format | eprints |
| spelling | eprints-89542016-02-12T22:01:10Z http://eprints.uanl.mx/8954/ On the structure of Au/Pd bimetallic nanoparticles Mejía Rosales, Sergio Fernández Navarro, Carlos Javier Pérez Tijerina, Eduardo Blom, Douglas A. Allard, Lawrence F. Yacamán, Miguel José Q Ciencias en General QC Física We performed a study on bimetallic Au/Pd nanoparticles using aberration corrected electron microscopy along with molecular dynamics simulations to investigate the features of specific atomic sites at the surface, which can be related to the high catalytic activity properties of the particles. The calculations mimic the growth of nanoparticles through a cooling process from a molten solid to a crystalline structure at room temperature. We found that the final structure for the alloy particles is neither a cuboctahedral nor an icosahedral,but a complex structure that has a very rough surface and unique isolated Pd sites surrounded by Au atoms. We also found that there is predominance of three specific Pd sites at the surface, which can be directly related to the catalytic activity of the nanoparticles American Chemical Society 2007 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/8954/2/On%20the%20Structure%20of%20Au_Pd%20Bimetallic%20Nanoparticles.pdf http://eprints.uanl.mx/8954/2.haspreviewThumbnailVersion/On%20the%20Structure%20of%20Au_Pd%20Bimetallic%20Nanoparticles.pdf Mejía Rosales, Sergio y Fernández Navarro, Carlos Javier y Pérez Tijerina, Eduardo y Blom, Douglas A. y Allard, Lawrence F. y Yacamán, Miguel José (2007) On the structure of Au/Pd bimetallic nanoparticles. Journal of physical chemistry C, 111 (3). pp. 1256-1260. ISSN 1256-1260 |
| spellingShingle | Q Ciencias en General QC Física Mejía Rosales, Sergio Fernández Navarro, Carlos Javier Pérez Tijerina, Eduardo Blom, Douglas A. Allard, Lawrence F. Yacamán, Miguel José On the structure of Au/Pd bimetallic nanoparticles |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | On the structure of Au/Pd bimetallic nanoparticles |
| title_full | On the structure of Au/Pd bimetallic nanoparticles |
| title_fullStr | On the structure of Au/Pd bimetallic nanoparticles |
| title_full_unstemmed | On the structure of Au/Pd bimetallic nanoparticles |
| title_short | On the structure of Au/Pd bimetallic nanoparticles |
| title_sort | on the structure of au pd bimetallic nanoparticles |
| topic | Q Ciencias en General QC Física |
| url | http://eprints.uanl.mx/8954/2/On%20the%20Structure%20of%20Au_Pd%20Bimetallic%20Nanoparticles.pdf |
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