Universität zu Köln

Woitassek, Dennis, Moya-Cancino, Jose G., Sun, Yangyang, Song, Yefan, Woschko, Dennis, Roitsch, Stefan ORCID: 0000-0002-7233-2245 and Janiak, Christoph (2022). Sweet, Sugar-Coated Hierarchical Platinum Nanostructures for Easy Support, Heterogenization and Separation. Chemistry-Switz., 4 (4). S. 1147 - 1161. BASEL: MDPI. ISSN 2624-8549

Full text not available from this repository.

Abstract

Metal nanoparticles are increasingly gaining interest in the field of heterogeneous catalysis. Here, we present a novel strategy for synthesizing sugar-coated platinum nanostructures (SC-Pt-NS) from the carbohydrates sucrose and D(-)-fructose. In the synthesis from a mixture of H2PtCl6 center dot 6H(2)O, the carbohydrate in an ionic liquid (IL) yielded primary particles of a homogeneous average size of similar to 10 nm, which were aggregated to hierarchical Pt nanostructures of similar to 40-65 nm and surrounded or supported by the carbohydrate. These sugar-coated platinum nanostructures present a facile way to support and heterogenize nanoparticles, avoid leaching and enable easier separation and handling. The catalytic activity of the SC-Pt-NS was shown in the hydrosilylation test reaction of phenylacetylene with triethylsilane, where very high turnover frequency (TOF) values of up to 87,200 h(-1) could be achieved, while the platinum metal leaching into the product was very low.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Woitassek, Dennis UNSPECIFIED UNSPECIFIED UNSPECIFIED Moya-Cancino, Jose G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sun, Yangyang UNSPECIFIED UNSPECIFIED UNSPECIFIED Song, Yefan UNSPECIFIED UNSPECIFIED UNSPECIFIED Woschko, Dennis UNSPECIFIED UNSPECIFIED UNSPECIFIED Roitsch, Stefan UNSPECIFIED orcid.org/0000-0002-7233-2245 UNSPECIFIED Janiak, Christoph UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-665396
DOI:	10.3390/chemistry4040078
Journal or Publication Title:	Chemistry-Switz.
Volume:	4
Number:	4
Page Range:	S. 1147 - 1161
Date:	2022
Publisher:	MDPI
Place of Publication:	BASEL
ISSN:	2624-8549
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CATALYZED HYDROSILYLATION REACTIONS; TRANSITION-METAL NANOPARTICLES; TEMPERATURE IONIC LIQUIDS; SIZE-DEPENDENT FORMATION; EFFICIENT; MECHANISM; SOLVENTS; ZEOLITE; ILS Multiple languages Chemistry, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66539