High Sintering Resistance of Size-Selected Platinum Cluster Catalysts by Suppressed Ostwald Ripening Full article
Journal |
Nano Letters
ISSN: 1530-6984 , E-ISSN: 1530-6992 |
||||||||
---|---|---|---|---|---|---|---|---|---|
Output data | Year: 2014, Volume: 14, Number: 10, Pages: 5803-5809 Pages count : 7 DOI: 10.1021/nl502686u | ||||||||
Tags | indirect nanoplasmonic sensing, Ostwald ripening, platinum, sintering resistance, Size-selected clusters | ||||||||
Authors |
|
||||||||
Affiliations |
|
Funding (6)
1 | Stiftelsen för strategisk forskning | RMA11-0037 |
2 | Swedish Research Council | 2010-4041 |
3 | Chalmers University of Technology | |
4 | European Research Council | AdG 246645-ASC3 |
5 | German Research Foundation | 3454/9-2 |
6 | German Research Foundation |
Abstract:
Employing rationally designed model systems with precise atom-by-atom particle size control, we demonstrate by means of combining noninvasive in situ indirect nano-plasmonic sensing and ex situ scanning transmission electron microscopy that monomodal size-selected platinum cluster catalysts on different supports exhibit remarkable intrinsic sintering resistance even under reaction conditions. The observed stability is related to suppression of Oftwald ripening by elimination of its main driving force via size-selection. This study thus constitutes a general blueprint for the rational design of sintering resistant catalyst systems and for efficient experimental strategies to determine sintering mechanisms. Moreover, this is the first systematic experimental investigation of sintering processes in nanoparticle systems with an initially perfectly monomodal size distribution under ambient conditions.
Cite:
Wettergren K.
, Schweinberger F.F.
, Deiana D.
, Ridge C.J.
, Crampton A.S.
, Rötzer M.D.
, Hansen T.W.
, Zhdanov V.P.
, Heiz U.
, Langhammer C.
High Sintering Resistance of Size-Selected Platinum Cluster Catalysts by Suppressed Ostwald Ripening
Nano Letters. 2014. V.14. N10. P.5803-5809. DOI: 10.1021/nl502686u WOS Scopus РИНЦ
High Sintering Resistance of Size-Selected Platinum Cluster Catalysts by Suppressed Ostwald Ripening
Nano Letters. 2014. V.14. N10. P.5803-5809. DOI: 10.1021/nl502686u WOS Scopus РИНЦ
Dates:
Submitted: | Jul 15, 2014 |
Accepted: | Aug 31, 2014 |
Published online: | Sep 11, 2014 |
Published print: | Oct 8, 2014 |
Identifiers:
Web of science | WOS:000343016400051 |
Scopus | 2-s2.0-84907863320 |
Elibrary | 23993913 |
Chemical Abstracts | 2014:1510284 |
Chemical Abstracts (print) | 161:493619 |
OpenAlex | W1980626698 |