Designing Structurally Ordered Pt/Sn Nanoparticles in Ionic Liquids and their Enhanced Catalytic Performance

Dietrich，Christine1,2; Hähsler，Martin1,2; Wang，Wu3,6; Kübel，Christian3,4,5; Behrens，Silke1,2

2020-12-01

10.1002/cnma.202000433

ChemNanoMat   影响因子和分区

2199-692X

2199-692X

Multimetallic nanoparticles (NPs) often exhibit enhanced catalytic properties that differ from their parent materials. Carefully exploring the structures of multimetallic NPs is a prerequisite for understanding the structure- and composition-associated properties. Herein, intermetallic Pt/Sn NPs with tunable compositions are designed exploiting the beneficial properties of ionic liquids (ILs) in a one-pot synthetic procedure. Metal salt precursors are reduced with triethylhydridoborate, whereby the cation of the triethylhydridoborate is adapted to the cation of the IL. Both the initial metal precursor ratio and the type of IL influence the structure of the NPs, with the effect of the IL being more pronounced. PtSn nanocrystals are obtained as phase pure products under optimized reaction conditions, whereby a microwave-assisted approach leads to higher crystallinity. In the hydrogenation of α,β-unsaturated aldehydes, the catalytic performance obviously depend on the NP composition. In bimetallic Pt/Sn NPs, higher Pt content leads to increased conversion, while increase in Sn increases selectivity to the cinnamic alcohol.

Intermetallic nanoparticles ionic liquids Pt/Sn selective hydrogenation α,β-unsaturated aldehydes

SCI ; EI

英语

其他

German Science Foundation (DFG)[SPP1708][BE 2243/3-1][BE 2243/3-2]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000589594700001

WILEY-V C H VERLAG GMBH

20204909596151

Binary alloys ; Intermetallics ; Hydrogenation ; Positive ions ; Tin alloys ; Crystallinity ; Platinum alloys ; Nanoparticles

Metallurgy:531.1 ; Tin and Alloys:546.2 ; Precious Metals:547.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Solid State Physics:933 ; Crystalline Solids:933.1

2-s2.0-85097190240

Scopus

1.Institute of Catalysis Research and Technology,Karlsruhe Institute of Technology (KIT),Eggenstein-Leopoldshafen,Hermann-von-Helmholtz-Platz 1,76344,Germany
2.Institute of Inorganic Chemistry,Ruprechts-Karls University Heidelberg,Heidelberg,Im Neuenheimer Feld 270,69120,Germany
3.Institute of Nanotechnology,Karlsruhe Institute of Technology (KIT),Eggenstein-Leopoldshafen,Hermann-von-Helmholtz-Platz 1,76344,Germany
4.Karlsruhe Nano Micro Facility (KNMF),Karlsruhe Institute of Technology (KIT),Eggenstein-Leopoldshafen,Hermann-von-Helmholtz-Platz 1,76344,Germany
5.Department of Earth & Geosciences,Technical University Darmstadt,Darmstadt,Alarich-Weiss-Str. 2,64287,Germany
6.Department of Physics,Southern University of Science and Technology,Guangdong,518055,China

Dietrich，Christine,Hähsler，Martin,Wang，Wu,et al. Designing Structurally Ordered Pt/Sn Nanoparticles in Ionic Liquids and their Enhanced Catalytic Performance[J]. ChemNanoMat,2020,6(12):1854-1862.

Dietrich，Christine,Hähsler，Martin,Wang，Wu,Kübel，Christian,&Behrens，Silke.(2020).Designing Structurally Ordered Pt/Sn Nanoparticles in Ionic Liquids and their Enhanced Catalytic Performance.ChemNanoMat,6(12),1854-1862.

Dietrich，Christine,et al."Designing Structurally Ordered Pt/Sn Nanoparticles in Ionic Liquids and their Enhanced Catalytic Performance".ChemNanoMat 6.12(2020):1854-1862.