Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Nanostructured Heterogeneous Catalysts: Well Defined Platinum Nanoparticles Supported on Alumina. Preparation, Characterization and Application to the Selective Hydrogenation of Buta-1,3-diene

D. Pham Minh 1, * y. Oudart 1 B. Baubet 1 C. Verdon 1 C. Thomazeau 1 
* Corresponding author
Abstract : Platinum nanoparticles with specific morphologies were prepared in aqueous solution. Key parameters, such as cationic surfactant (cetyltrimethylammonium bromide CTAB) and platinum precursor (H2PtCl6) ratio, temperature, atmosphere (argon or hydrogen), were required to control the formation of nanostructured platinum particles, with well defined morphologies, and even to control their morphology. Platinum nanoparticles with mainly cubic morphologies, with a mix of morphologies (rods, cubes, tetrahedra) or with mainly polyhedric morphologies, were thus obtained depending on CTAB/Pt ratio, atmosphere and temperature. A mechanism of formation of theses platinum nanoparticles was proposed using a time resolved transmission electron microscopy study. After deposition onto Al2O3, the well crystallized nanostructured platinum particles were evaluated in the selective hydrogenation of buta-1,3-diene. Catalysts prepared with platinum nanoparticles exposing mainly the (111) crystallographic plane (polyhedric morphologies) were the most selective for the selective hydrogenation of buta-1,3-diene into butenes with a drastic decreasing of further hydrogenation into n-butane.
Document type :
Journal articles
Complete list of metadata

Cited literature [47 references]  Display  Hide  Download

https://hal-ifp.archives-ouvertes.fr/hal-02001584
Contributor : EDP Sciences Connect in order to contact the contributor
Submitted on : Thursday, January 31, 2019 - 11:37:38 AM
Last modification on : Monday, March 28, 2022 - 11:26:04 AM
Long-term archiving on: : Wednesday, May 1, 2019 - 5:42:35 PM

File

ogst08121.pdf
Publication funded by an institution

Identifiers

Collections

IFP | OGST

Citation

D. Pham Minh, y. Oudart, B. Baubet, C. Verdon, C. Thomazeau. Nanostructured Heterogeneous Catalysts: Well Defined Platinum Nanoparticles Supported on Alumina. Preparation, Characterization and Application to the Selective Hydrogenation of Buta-1,3-diene. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole (IFP), 2009, 64 (6), pp.697-706. ⟨10.2516/ogst/2009021⟩. ⟨hal-02001584⟩

Share

Metrics

Record views

8

Files downloads

190