Skip to Main content Skip to Navigation
Journal articles

Aerosol synthesis of thermally stable porous noble metals and alloys by using bi-functional templates

Mateusz Odziomek Mounib Bahri 1 Cédric Boissière 2 Clément Sanchez 2 Benedikt Lassalle-Kaiser 3 Andrea Zitolo 4 Ovidiu Ersen 5 Sophie Nowak 6 Cédric Tard 7 Marion Giraud 8 Marco Faustini 9 Jennifer Péron 10
1 LPN - Laboratoire de photonique et de nanostructures
2 LCMCP (site Paris VI) - Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI)
3 SOLEIL - Synchrotron SOLEIL
4 Dipartimento di Chimica
5 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg
6 ITODYS (UMR_7086) - Interfaces, Traitements, Organisation et Dynamique des Systèmes [Avant 2020]
7 LPMC - Laboratoire de physique de la matière condensée
8 ESPE Grenoble - École supérieure du professorat et de l'éducation - Académie de Grenoble
9 LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
10 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
Abstract : Porous noble metal nanostructures providing high surface areas and large pore volumes are attractive for numerous applications especially catalysis. However, the synthesis of such architectures with nanoscale features is challenging because of i.e high surface energy. Previous reports are based on multi-step synthetic approaches with low yield thus not compatible with industrial scale. Herein, we demonstrate that hierarchical nanostructured noble metals and alloys, with thermal stability up to 800 °C, can be fabricated by a high throughput, green and straightforward aerosol-assisted synthesis using bi-functional reducing templates. We unravel the reduction mechanism at the solid/solid interface at the single-particle level using state-of-the-art techniques such as in situ Transmission Electron Microscopy, in situ synchrotron-based X-ray absorption spectroscopy. We propose a mechanism based on a radical process thermally triggered by the depolymerization of organic components. From a fundamental point of view, this study sheds light on the reduction processes of noble metals in the presence of organic compounds with important fundamental implications for catalysis and electrocatalysis.
Document type :
Journal articles
Complete list of metadatas

Cited literature [47 references]  Display  Hide  Download
https://hal.sorbonne-universite.fr/hal-02617368
Contributor : Marco Faustini <>
Submitted on : Monday, May 25, 2020 - 11:16:58 AM
Last modification on : Friday, July 10, 2020 - 7:58:53 AM

Files

Vignette du document
Aerosol synthesis of thermally...
Files produced by the author(s)

Identifiers

Collections

CDF | X-DEP-PHYS | ENSCP | X-PMC | X | INC-CNRS | SYNCHROTRON-SOLEIL | CHIMIE | UNIV-MONTPELLIER | UNIV-SAVOIE | ICG | LCMCP_PARISVI | LCMCP | PSL | CNRS | SITE-ALSACE | IP_PARIS | UP-SCIENCES | SU-SCIENCES | SORBONNE-UNIVERSITE | PARISTECH | UGA

Citation

Mateusz Odziomek, Mounib Bahri, Cédric Boissière, Clément Sanchez, Benedikt Lassalle-Kaiser, et al.. Aerosol synthesis of thermally stable porous noble metals and alloys by using bi-functional templates. Materials Horizons, cRoyal Society of Chemistry, 2020, 7 (2), pp.541-550. ⟨10.1039/C9MH01408J⟩. ⟨hal-02617368⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

54

Files downloads

74

Contact

Informations

CCSD