Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
Carbon-supported platinum nanoparticles Pt/C (NPs) are used in many fields of science. These kinds of materials have been extensively studied in electrochemistry due to the fact that they are applied in fuel cell technology. Although there are a myriad of methods for Pt NP synthesis, the need for ob...
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| Autores principales: | , , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2014
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/133107 |
| Aporte de: |
| id |
I19-R120-10915-133107 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Química Platinum nanoparticles Microwave-assisted synthesis Cleaning process Agglomeration of nanoparticles Active surface area CO probe |
| spellingShingle |
Química Platinum nanoparticles Microwave-assisted synthesis Cleaning process Agglomeration of nanoparticles Active surface area CO probe Armendáriz, Víctor Rolando R. Martins, Cauê A. Troiani, Horacio de Oliveira, L. Stropa, Jusinei Meireles Camara, Giuseppe A. Martins, María Elisa Fernández, Pablo Sebastián Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method |
| topic_facet |
Química Platinum nanoparticles Microwave-assisted synthesis Cleaning process Agglomeration of nanoparticles Active surface area CO probe |
| description |
Carbon-supported platinum nanoparticles Pt/C (NPs) are used in many fields of science. These kinds of materials have been extensively studied in electrochemistry due to the fact that they are applied in fuel cell technology. Although there are a myriad of methods for Pt NP synthesis, the need for obtaining Pt/C NPs with a good dispersion (covering over the entire support), a narrow size distribution, and clean surface (among other parameters) is far to be overcome. On this sense herein we describe a very easy and quick method of synthesis of highly dispersed Pt NPs followed by a simple electrochemical cleaning step. The catalysts were electrochemically characterized by studying their behavior in 0.5 M H<sub>2</sub>SO<sub>4</sub> and also by using CO as a probe during the CO electro-oxidation reaction (COEOR). This paper shows how to obtain highly dispersed and clean Pt/C NPs that produce very reproducible results. Besides, we demonstrate how the presence of impurities negatively affects the electrochemical reproducibility of Pt NPs with a clear impact on their catalytic activity. |
| format |
Articulo Articulo |
| author |
Armendáriz, Víctor Rolando R. Martins, Cauê A. Troiani, Horacio de Oliveira, L. Stropa, Jusinei Meireles Camara, Giuseppe A. Martins, María Elisa Fernández, Pablo Sebastián |
| author_facet |
Armendáriz, Víctor Rolando R. Martins, Cauê A. Troiani, Horacio de Oliveira, L. Stropa, Jusinei Meireles Camara, Giuseppe A. Martins, María Elisa Fernández, Pablo Sebastián |
| author_sort |
Armendáriz, Víctor Rolando R. |
| title |
Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method |
| title_short |
Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method |
| title_full |
Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method |
| title_fullStr |
Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method |
| title_full_unstemmed |
Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method |
| title_sort |
obtaining clean and well-dispersed pt nps with a microwave-assisted method |
| publishDate |
2014 |
| url |
http://sedici.unlp.edu.ar/handle/10915/133107 |
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Repositorios |
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