Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems
New noble bimetallic materials composed of platinum/silver, platinum/palladium and palladium/silver arrangements of nanoparticles supported on mesoporous ordered silica support were obtained and characterized. Ammine complexes of noble metals ([Pt(NH 3 ) 4 ]Cl 2 ), [Ag(NH 3 ) 2 ]OH and ([Pd(NH 3 ) 4...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2015-08-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.33.6-8.723 |
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| author | M. Zienkiewicz-Strzałka S. Pikus |
| author_facet | M. Zienkiewicz-Strzałka S. Pikus |
| author_sort | M. Zienkiewicz-Strzałka |
| collection | DOAJ |
| description | New noble bimetallic materials composed of platinum/silver, platinum/palladium and palladium/silver arrangements of nanoparticles supported on mesoporous ordered silica support were obtained and characterized. Ammine complexes of noble metals ([Pt(NH 3 ) 4 ]Cl 2 ), [Ag(NH 3 ) 2 ]OH and ([Pd(NH 3 ) 4 ]Cl 2 )) were used as nanoparticles sources. The selected ammine complexes of noble metals were proven to be an easy solution for obtaining good quality materials in comparison with other sources. Bimetallic materials were synthesized by traditional impregnation technique, making the proposed procedure simple and reproducible. Our studies demonstrated that there are significant differences between types of materials and thermal stability of their metal precursor and their decomposition mechanisms. The X-ray diffraction results showed that the obtained metal crystallites exhibited different sizes depending on the kind of noble metal, as indicated by significant differences in intensity and width of diffraction profiles for metal phases. Such difference in sizes of individual components causes different kinds of interaction between metal nanoparticle and solid support. The binding energy of reactants depends on the particle size. This difference was characterized by X-ray photoelectron spectroscopy measurements. The obtained materials were characterized by various techniques suitable for surface characterization with particular emphasis on high-resolution transmission electron microscopy. |
| format | Article |
| id | doaj-art-4794844f55084abb8817467c1d329380 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2015-08-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-4794844f55084abb8817467c1d3293802025-02-03T10:13:00ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382015-08-013310.1260/0263-6174.33.6-8.723Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 SystemsM. Zienkiewicz-Strzałka0S. Pikus1Department of Physicochemistry of Solid Surface, Faculty of Chemistry, Maria Curie-Skłodowska University, sq. Marii Curie Skłodowskiej 3, 20-031 Lublin, Poland.Department of Crystallography, Faculty of Chemistry, Maria Curie-Skłodowska University, sq. Marii Curie Skłodowskiej 3, 20-031 Lublin, Poland.New noble bimetallic materials composed of platinum/silver, platinum/palladium and palladium/silver arrangements of nanoparticles supported on mesoporous ordered silica support were obtained and characterized. Ammine complexes of noble metals ([Pt(NH 3 ) 4 ]Cl 2 ), [Ag(NH 3 ) 2 ]OH and ([Pd(NH 3 ) 4 ]Cl 2 )) were used as nanoparticles sources. The selected ammine complexes of noble metals were proven to be an easy solution for obtaining good quality materials in comparison with other sources. Bimetallic materials were synthesized by traditional impregnation technique, making the proposed procedure simple and reproducible. Our studies demonstrated that there are significant differences between types of materials and thermal stability of their metal precursor and their decomposition mechanisms. The X-ray diffraction results showed that the obtained metal crystallites exhibited different sizes depending on the kind of noble metal, as indicated by significant differences in intensity and width of diffraction profiles for metal phases. Such difference in sizes of individual components causes different kinds of interaction between metal nanoparticle and solid support. The binding energy of reactants depends on the particle size. This difference was characterized by X-ray photoelectron spectroscopy measurements. The obtained materials were characterized by various techniques suitable for surface characterization with particular emphasis on high-resolution transmission electron microscopy.https://doi.org/10.1260/0263-6174.33.6-8.723 |
| spellingShingle | M. Zienkiewicz-Strzałka S. Pikus Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems Adsorption Science & Technology |
| title | Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems |
| title_full | Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems |
| title_fullStr | Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems |
| title_full_unstemmed | Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems |
| title_short | Preparation and Structural Properties of Bimetallic Noble Metals Nanoparticles in SBA-15 Systems |
| title_sort | preparation and structural properties of bimetallic noble metals nanoparticles in sba 15 systems |
| url | https://doi.org/10.1260/0263-6174.33.6-8.723 |
| work_keys_str_mv | AT mzienkiewiczstrzałka preparationandstructuralpropertiesofbimetallicnoblemetalsnanoparticlesinsba15systems AT spikus preparationandstructuralpropertiesofbimetallicnoblemetalsnanoparticlesinsba15systems |