Ab initio study of CO adsorption on PdGa(1 1 0)
- Autores
- Bechthold, Pablo Ignacio; Jasen, Paula Verónica; Ardenghi, Juan Sebastian; Gonzalez, Estela Andrea; Juan, Alfredo
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- CO adsorption is analyzed using Density Functional Theory (DFT) calculations. Changes in the electronic structure of PdGa(1 1 0) surface and CO bond after adsorption are addressed. CO is located only on Pd atop geometry with a tilted configuration (9.13° from the perpendicular to the surface) and no interaction with Ga is detected. The Pd-Pd bond strength decreases 54.2% as the new Pd-CO bond is formed. The C-O bond length change less than 1%, compared to the gas phase value, while its bond overlap population decrease 46.2%. The effect of CO is limited to its first Pd neighbor. Analysis of orbital interaction reveals the Pd-CO bond mainly involves s-s and s-p orbitals with less participation of Pd 4d orbitals. The computed CO vibration frequencies after adsorption shows a red shift from vacuum to ward 2013.85 cm-1, which agrees with previous experimental data on PdGa intermetallic.
Fil: Bechthold, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Jasen, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Ardenghi, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Gonzalez, Estela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Juan, Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina - Materia
-
Co Adsorption
Dft
Intermetallic Compounds
Pdga - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/78995
Ver los metadatos del registro completo
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Ab initio study of CO adsorption on PdGa(1 1 0)Bechthold, Pablo IgnacioJasen, Paula VerónicaArdenghi, Juan SebastianGonzalez, Estela AndreaJuan, AlfredoCo AdsorptionDftIntermetallic CompoundsPdgahttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1CO adsorption is analyzed using Density Functional Theory (DFT) calculations. Changes in the electronic structure of PdGa(1 1 0) surface and CO bond after adsorption are addressed. CO is located only on Pd atop geometry with a tilted configuration (9.13° from the perpendicular to the surface) and no interaction with Ga is detected. The Pd-Pd bond strength decreases 54.2% as the new Pd-CO bond is formed. The C-O bond length change less than 1%, compared to the gas phase value, while its bond overlap population decrease 46.2%. The effect of CO is limited to its first Pd neighbor. Analysis of orbital interaction reveals the Pd-CO bond mainly involves s-s and s-p orbitals with less participation of Pd 4d orbitals. The computed CO vibration frequencies after adsorption shows a red shift from vacuum to ward 2013.85 cm-1, which agrees with previous experimental data on PdGa intermetallic.Fil: Bechthold, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Jasen, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Ardenghi, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Gonzalez, Estela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Juan, Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaElsevier Science2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/78995Bechthold, Pablo Ignacio; Jasen, Paula Verónica; Ardenghi, Juan Sebastian; Gonzalez, Estela Andrea; Juan, Alfredo; Ab initio study of CO adsorption on PdGa(1 1 0); Elsevier Science; Computational Materials Science; 71; 4-2013; 192-1960927-0256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0927025613000499info:eu-repo/semantics/altIdentifier/doi/10.1016/j.commatsci.2013.01.033info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T09:39:23Zoai:ri.conicet.gov.ar:11336/78995instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-11-05 09:39:23.35CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| title |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| spellingShingle |
Ab initio study of CO adsorption on PdGa(1 1 0) Bechthold, Pablo Ignacio Co Adsorption Dft Intermetallic Compounds Pdga |
| title_short |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| title_full |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| title_fullStr |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| title_full_unstemmed |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| title_sort |
Ab initio study of CO adsorption on PdGa(1 1 0) |
| dc.creator.none.fl_str_mv |
Bechthold, Pablo Ignacio Jasen, Paula Verónica Ardenghi, Juan Sebastian Gonzalez, Estela Andrea Juan, Alfredo |
| author |
Bechthold, Pablo Ignacio |
| author_facet |
Bechthold, Pablo Ignacio Jasen, Paula Verónica Ardenghi, Juan Sebastian Gonzalez, Estela Andrea Juan, Alfredo |
| author_role |
author |
| author2 |
Jasen, Paula Verónica Ardenghi, Juan Sebastian Gonzalez, Estela Andrea Juan, Alfredo |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Co Adsorption Dft Intermetallic Compounds Pdga |
| topic |
Co Adsorption Dft Intermetallic Compounds Pdga |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
CO adsorption is analyzed using Density Functional Theory (DFT) calculations. Changes in the electronic structure of PdGa(1 1 0) surface and CO bond after adsorption are addressed. CO is located only on Pd atop geometry with a tilted configuration (9.13° from the perpendicular to the surface) and no interaction with Ga is detected. The Pd-Pd bond strength decreases 54.2% as the new Pd-CO bond is formed. The C-O bond length change less than 1%, compared to the gas phase value, while its bond overlap population decrease 46.2%. The effect of CO is limited to its first Pd neighbor. Analysis of orbital interaction reveals the Pd-CO bond mainly involves s-s and s-p orbitals with less participation of Pd 4d orbitals. The computed CO vibration frequencies after adsorption shows a red shift from vacuum to ward 2013.85 cm-1, which agrees with previous experimental data on PdGa intermetallic. Fil: Bechthold, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina Fil: Jasen, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina Fil: Ardenghi, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina Fil: Gonzalez, Estela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina Fil: Juan, Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina |
| description |
CO adsorption is analyzed using Density Functional Theory (DFT) calculations. Changes in the electronic structure of PdGa(1 1 0) surface and CO bond after adsorption are addressed. CO is located only on Pd atop geometry with a tilted configuration (9.13° from the perpendicular to the surface) and no interaction with Ga is detected. The Pd-Pd bond strength decreases 54.2% as the new Pd-CO bond is formed. The C-O bond length change less than 1%, compared to the gas phase value, while its bond overlap population decrease 46.2%. The effect of CO is limited to its first Pd neighbor. Analysis of orbital interaction reveals the Pd-CO bond mainly involves s-s and s-p orbitals with less participation of Pd 4d orbitals. The computed CO vibration frequencies after adsorption shows a red shift from vacuum to ward 2013.85 cm-1, which agrees with previous experimental data on PdGa intermetallic. |
| publishDate |
2013 |
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2013-04 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/78995 Bechthold, Pablo Ignacio; Jasen, Paula Verónica; Ardenghi, Juan Sebastian; Gonzalez, Estela Andrea; Juan, Alfredo; Ab initio study of CO adsorption on PdGa(1 1 0); Elsevier Science; Computational Materials Science; 71; 4-2013; 192-196 0927-0256 CONICET Digital CONICET |
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http://hdl.handle.net/11336/78995 |
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Bechthold, Pablo Ignacio; Jasen, Paula Verónica; Ardenghi, Juan Sebastian; Gonzalez, Estela Andrea; Juan, Alfredo; Ab initio study of CO adsorption on PdGa(1 1 0); Elsevier Science; Computational Materials Science; 71; 4-2013; 192-196 0927-0256 CONICET Digital CONICET |
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eng |
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Elsevier Science |
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Elsevier Science |
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