Journal ArticleDOI
Three-layer core/shell structure in Au-Pd bimetallic nanoparticles.
Domingo Ferrer,Alejandro Torres-Castro,Xiangwen Gao,Selene Sepulveda-Guzman,U. Ortiz-Méndez,Miguel Jose-Yacaman +5 more
TLDR
The internal structure of Au-Pd nanoparticles exhibiting newly discovered three-layer core/shell morphology is described, which is composed of an evenly alloyed inner core, an Au-rich intermediate layer, and a Pd-rich outer shell.Abstract:
This paper describes the internal structure of Au-Pd nanoparticles exhibiting newly discovered three-layer core/shell morphology, which is composed of an evenly alloyed inner core, an Au-rich intermediate layer, and a Pd-rich outer shell. By exploitation of spatially resolved imaging and spectroscopic and diffraction modes of transmission electron microscopy (TEM), insights were gained on the composition of each one of the observed three layers, indicating a significant extent of intimate alloy among the monometallic elements.read more
Citations
More filters
Journal ArticleDOI
Nanoalloys: From Theory to Applications of Alloy Clusters and Nanoparticles
TL;DR: Nanoalloys of Group 11 (Cu, Ag, Au) 865 5.1.5.2.
Journal ArticleDOI
Designing bimetallic catalysts for a green and sustainable future
Meenakshisundaram Sankar,Nikolaos Dimitratos,Nikolaos Dimitratos,Peter J. Miedziak,Peter P. Wells,Peter P. Wells,Christopher J. Kiely,Graham J. Hutchings +7 more
TL;DR: A specific objective of this review article is to motivate researchers to synthesize some of the "designer" bimetallic catalysts with specific nanostructures, inspired from recent advances in the area of materials chemistry, and to utilize them for the transformation of biomass derived materials that are very complex and pose different challenges compared to those of simple organic molecules.
Journal ArticleDOI
Nonspherical Noble Metal Nanoparticles: Colloid-Chemical Synthesis and Morphology Control
Tapan K. Sau,Andrey L. Rogach +1 more
TL;DR: This article reviews the recent progress in the colloid-chemical synthesis of nonspherical nanoparticles of a few important noble metals, highlighting the factors that influence the particle morphology and discussing the mechanisms behind the nonsphericals shape evolution.
Journal ArticleDOI
Block copolymer nanolithography: translation of molecular level control to nanoscale patterns
TL;DR: The self-asembly of block copolymers is a promising platform for the "bottom-up" fabrication of nanostructured materials and devices.
Journal ArticleDOI
Pd–Au bimetallic catalysts: understanding alloy effects from planar models and (supported) nanoparticles
Feng Gao,D. Wayne Goodman +1 more
TL;DR: Pd-Au bimetallic catalysts often display enhanced catalytic activities and selectivities compared with Pd-alone catalysts, often caused by two alloy effects, i.e., ensemble and ligand effects.
References
More filters
Journal ArticleDOI
Bimetallic nanoparticles—novel materials for chemical and physical applications
Naoki Toshima,Tetsu Yonezawa +1 more
TL;DR: In this article, a review on the preparation, characterization and application of polymer- or ligand-stabilized bimetallic nanoparticles in dispersion, emphasizing their own work and introducing recent progress of this area is presented.
Journal ArticleDOI
Designing Pd-on-Au Bimetallic Nanoparticle Catalysts for Trichloroethene Hydrodechlorination
TL;DR: The Pd-on-Au bimetallic catalyst structure provides a new synthesis approach in improving the catalytic properties of monometallic Pd materials and should be highly suitable as hydrodehalogenation and reduction catalysts for the remediation of various organic and inorganic groundwater contaminants.
Journal ArticleDOI
Magic Polyicosahedral Core-Shell Clusters
Giulia Rossi,Arnaldo Rapallo,Christine Mottet,Alessandro Fortunelli,Francesca Baletto,Riccardo Ferrando +5 more
TL;DR: A new family of magic cluster structures is found by genetic global optimization, whose results are confirmed by density functional calculations, which can have high melting points, large energy gaps, and (in the case of Ag-Ni) nonzero magnetic moments.
Journal ArticleDOI
Characterization and Catalytic Activity of Core−Shell Structured Gold/Palladium Bimetallic Nanoparticles Synthesized by the Sonochemical Method
TL;DR: In this article, the preparation of nanosized gold/palladium bimetallic particles utilizing a cavitation phenomenon induced by irradiation of high-intensity ultrasound in an aqueous solution of gold(III) and palladium(II) ions is described.
Journal ArticleDOI
Bimetallic palladium-gold dendrimer-encapsulated catalysts.
TL;DR: The catalytic hydrogenation of allyl alcohol was significantly enhanced in the presence of the alloy and core/shell PdAu nanoparticles as compared to mixtures of single-metal nanoparticles.
Related Papers (5)
Nanoalloys: From Theory to Applications of Alloy Clusters and Nanoparticles
Bimetallic nanoparticles—novel materials for chemical and physical applications
Naoki Toshima,Tetsu Yonezawa +1 more