γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis
The support-overlayer adsorptive interactions, generated when solutions of Anderson heteropolyoxomolybdates were supported as a monolayer on γ-Al₂O₃ by means of the equilibrium adsorption method, were studied by XRD analysis, DR spectroscopy, electron microscopy (SEM-EDAX) and TPR methods. The adsor...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2000
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/123748 |
| Aporte de: |
| id |
I19-R120-10915-123748 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Química Heteropolyoxomolybdates adsorption |
| spellingShingle |
Ciencias Exactas Química Heteropolyoxomolybdates adsorption Cabello, Carmen Inés Botto, Irma Lía Cabrerizo, Franco Martín González, María Gloria Thomas, Horacio Jorge γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis |
| topic_facet |
Ciencias Exactas Química Heteropolyoxomolybdates adsorption |
| description |
The support-overlayer adsorptive interactions, generated when solutions of Anderson heteropolyoxomolybdates were supported as a monolayer on γ-Al₂O₃ by means of the equilibrium adsorption method, were studied by XRD analysis, DR spectroscopy, electron microscopy (SEM-EDAX) and TPR methods. The adsorption isotherms and corresponding adsorption parameters (number of active sites and adsorption constants) of the γ-Al₂O₃-supported ammonium heptamolybdate were obtained and discussed. The following sequence of adsorption strength was suggested: CoMo₆ > CrMo₆ > TeMo₆ ~ AlMo₆ > NiMo₆. The effectiveness of the TPR technique as a tool for elucidating interaction effects was clearly demonstrated. The formation of a γ-Al₂O₃-supported Te-Mo mixed valence oxide appears to provide new and interesting catalytic possibilities. |
| format |
Articulo Articulo |
| author |
Cabello, Carmen Inés Botto, Irma Lía Cabrerizo, Franco Martín González, María Gloria Thomas, Horacio Jorge |
| author_facet |
Cabello, Carmen Inés Botto, Irma Lía Cabrerizo, Franco Martín González, María Gloria Thomas, Horacio Jorge |
| author_sort |
Cabello, Carmen Inés |
| title |
γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis |
| title_short |
γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis |
| title_full |
γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis |
| title_fullStr |
γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis |
| title_full_unstemmed |
γ-Al₂O₃-Supported XMo₆ Anderson Heteropolyoxomolybdates: Adsorption Studies for X = Te<sup>VI</sup>, Al<sup>III</sup>, Co<sup>III</sup>, Cr<sup>III</sup> and Ni<sup>II</sup> by DR Spectroscopy and TPR Analysis |
| title_sort |
γ-al₂o₃-supported xmo₆ anderson heteropolyoxomolybdates: adsorption studies for x = te<sup>vi</sup>, al<sup>iii</sup>, co<sup>iii</sup>, cr<sup>iii</sup> and ni<sup>ii</sup> by dr spectroscopy and tpr analysis |
| publishDate |
2000 |
| url |
http://sedici.unlp.edu.ar/handle/10915/123748 |
| work_keys_str_mv |
AT cabellocarmenines gal2o3supportedxmo6andersonheteropolyoxomolybdatesadsorptionstudiesforxtesupvisupalsupiiisupcosupiiisupcrsupiiisupandnisupiisupbydrspectroscopyandtpranalysis AT bottoirmalia gal2o3supportedxmo6andersonheteropolyoxomolybdatesadsorptionstudiesforxtesupvisupalsupiiisupcosupiiisupcrsupiiisupandnisupiisupbydrspectroscopyandtpranalysis AT cabrerizofrancomartin gal2o3supportedxmo6andersonheteropolyoxomolybdatesadsorptionstudiesforxtesupvisupalsupiiisupcosupiiisupcrsupiiisupandnisupiisupbydrspectroscopyandtpranalysis AT gonzalezmariagloria gal2o3supportedxmo6andersonheteropolyoxomolybdatesadsorptionstudiesforxtesupvisupalsupiiisupcosupiiisupcrsupiiisupandnisupiisupbydrspectroscopyandtpranalysis AT thomashoraciojorge gal2o3supportedxmo6andersonheteropolyoxomolybdatesadsorptionstudiesforxtesupvisupalsupiiisupcosupiiisupcrsupiiisupandnisupiisupbydrspectroscopyandtpranalysis |
| bdutipo_str |
Repositorios |
| _version_ |
1764820450178760704 |