نتایج جستجو برای: bimetallic clusters

تعداد نتایج: 117188  

Journal: :ACS Catalysis 2021

By introducing Pt atoms into the surface of reduced hydrotalcite (HT)-derived nickel (Ni/HT) catalysts by redox reaction, we synthesized an enhanced active and stable Ni-based catalyst for methane ...

Journal: :Acta Crystallographica Section E Crystallographic Communications 2018

Journal: :Catalysis Communications 2022

The stability of AuCu, Au2Cu, AuCu2, Au2Cu2, and Au3Cu clusters on the CeO2(110) surface is related to favourable interaction between theAu Cu d-orbitals with theO p-orbitals surface. On most stable AuCu/CeO2(110) systems, two Ce(IV)-ions are reduced Ce(III)-ions however, relatively lesser triatomic AuCu2 cluster can reduce up three Ce(IV)-ions. non-interacting Au-atoms in Au2Cu/CeO2(110) Au3Cu...

Journal: :Small 2016
Jinkyu Roh Seung Hyuk Back Dong June Ahn

Shape-persistent replica synthesis of Au/Ag bimetallic nanoplates is invented. Using a tailored silica cage as a template for the synthesis, a successful shape-replication of Au/Ag bimetallic nanoplate is achieved at the cage core having geometry of initial Ag nanoplate. This work can open up the simple fabrication of multicomponent metallic particles, with nanogeometry being defined early at t...

Journal: :Chemistry 2012
Zhen Yin Wu Zhou Yongjun Gao Ding Ma Christopher J Kiely Xinhe Bao

Monodisperse bimetallic Pd-Cu nanoparticles with controllable size and composition were synthesized by a one-step multiphase ethylene glycol (EG) method. Adjusting the stoichiometric ratio of the Pd and Cu precursors afforded nanoparticles with different compositions, such as Pd(85)-Cu(15), Pd(56)-Cu(44), and Pd(39)-Cu(61). The nanoparticles were separated from the solution mixture by extractio...

Journal: :Nanoscale 2013
Gopi Krishnan Marcel A Verheijen Gert H ten Brink George Palasantzas Bart J Kooi

Nowadays bimetallic nanoparticles (NPs) have emerged as key materials for important modern applications in nanoplasmonics, catalysis, biodiagnostics, and nanomagnetics. Consequently the control of bimetallic structural motifs with specific shapes provides increasing functionality and selectivity for related applications. However, producing bimetallic NPs with well controlled structural motifs s...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2004
John C Weigle Jonathan Phillips

Hydrogen spillover over macroscopic distances was demonstrated and exploited in the design of two novel catalytic reactors for 1-butene isomerization. A dual-bed reactor containing separate zones of noble metal and bimetallic catalysts yielded activities up to 2.7 times greater than that of the noble metal alone. The noble metal catalyst contained palladium supported on graphitic carbon. The bi...

Journal: :Dalton transactions 2008
Sang-Jin Jeon Robert M Waymouth

Bimetallic Ni, Rh, and Ir complexes of pyrazolate biscarbene containing bulky substituents have been synthesized and characterized by X-ray crystallography; the Ni complex dimerizes to a highly congested L(2)Ni(2) structure, whereas the corresponding Rh and Ir complexes form bimetallic LM(2) structures.

Journal: :Journal of the American Chemical Society 2010
Alexandra Velian Sibo Lin Alexander J M Miller Michael W Day Theodor Agapie

Mono- and bimetallic complexes of nickel supported by a terphenyl diphosphine have been synthesized. The reported complexes show diverse metal-arene interactions in the solid state. Reactions of an o,o'-biphenyldiyl dinickel complex with CO and dichloroalkanes lead to fluorene derivatives, indicating the formation of carbon-carbon bonds at a bimetallic moiety.

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