نتایج جستجو برای: Nano-clusters

تعداد نتایج: 163262  

Journal: :international journal of nanoscience and nanotechnology 2011
s. h. mahboobi a. meghdari n. jalili f. amiri

based on the fact the manipulation of fine nanoclusters calls for more precise modeling, the aim of this paper is to conduct an atomistic investigation for interaction analysis of particle-substrate system for pushing and positioning purposes. in the present research, 2d molecular dynamics simulations have been used to investigate such behaviors. performing the planar simulations can provide a ...

In this study, electronic structures of ground state of pure vanadium sub-nano clusters, Vn (n=2-5), and their interactions with small ligands for example CO and triplet O2 molecules are investigated by using density functional theory (DFT) calibration at the mPWPW91/QZVP level of theory. The favorable orientations of these ligands in interaction with pure vanadium sub-nano clusters were determ...

2016
Xiaoping Yang Shiqing Wang Tyler L. King Christopher J. Kerr Clement Blanchet Dmitri Svergun Robert Pal Andrew Beeby Jamuna Vadivelu Katherine A. Brown Richard A. Jones Lijie Zhang Shaoming Huang

We have developed a new class of lanthanide nano-clusters that self-assemble using flexible Schiff base ligands. Cd-Ln and Ni-Ln clusters, [Ln8Cd24(L1)12(OAc)39Cl7(OH)2] (Ln = Nd, Eu), [Eu8Cd24(L1)12(OAc)44], [Ln8Cd24(L2)12(OAc)44] (Ln = Nd, Yb, Sm) and [Nd2Ni4(L3)2(acac)6(NO3)2(OH)2], were constructed using different types of flexible Schiff base ligands. These molecular nano-clusters exhibit ...

2016
Xiaoping Yang Shiqing Wang Tyler L. King Christopher J. Kerr Clement Blanchet Dmitri Svergun Robert Pal Andrew Beeby Jamuna Vadivelu Katherine A. Brown Richard A. Jones Lijie Zhang Shaoming Huang

We have developed a new class of lanthanide nano-clusters that self-assemble using flexible Schiff base ligands. Cd–Ln and Ni–Ln clusters, [Ln8Cd24(L )12(OAc)39Cl7(OH)2] (Ln 1⁄4 Nd, Eu), [Eu8Cd24(L)12(OAc)44], [Ln8Cd24(L)12(OAc)44] (Ln 1⁄4 Nd, Yb, Sm) and [Nd2Ni4(L )2(acac)6(NO3)2(OH)2], were constructed using different types of flexible Schiff base ligands. These molecular nano-clusters exhibi...

Journal: :CoRR 2012
Stasa Milojevic

This article examines the cognitive evolution and disciplinary diversity of nanoscience/nanotechnology (nano research) as expressed through the terminology used in titles of nano journal articles. The analysis is based on the NanoBank bibliographic database of 287,106 nano articles published between 1981 and 2004. We perform multifaceted analyses of title words, focusing on 100 most frequent wo...

Journal: :Journal of Chemical Sciences 2001

2015
Puran Pandey Mao Sui Ming-Yu Li Quanzhen Zhang Eun-Soo Kim Jihoon Lee Sefer Bora Lisesivdin

Au nano-clusters and nanoparticles (NPs) have been widely utilized in various electronic, optoelectronic, and bio-medical applications due to their great potentials. The size, density and configuration of Au NPs play a vital role in the performance of these devices. In this paper, we present a systematic study on the self-assembled hexagonal Au voids, nano-clusters and NPs fabricated on GaN (00...

2007
Michael A. Duncan Phillip Benson Nigel Adams Jonathan Amster Maureen Grasso

Laser desorption mass spectrometry was used in the production and analysis of gas phase metal sulfur clusters. Clusters of gas phase aluminum, gallium, and indium sulfur were produced and analyzed using a time-of-flight mass spectrometer. Also, carbon nano-onions produced by an arc between graphite electrodes in water and the annealing of nanodiamonds were analyzed. The sulfur experiments were ...

2017
Yong-Chao Liang Rang-Su Liu Quan Xie Ze-An Tian Yun-Fei Mo Hai-Tao Zhang Hai-Rong Liu Zhao-Yang Hou Li-Li Zhou Ping Peng

To investigate the structural evolution and hereditary mechanism of icosahedral nano-clusters formed during rapid solidification, a molecular dynamics (MD) simulation study has been performed for a system consisting of 107 atoms of liquid Mg70Zn30 alloy. Adopting Honeycutt-Anderson (HA) bond-type index method and cluster type index method (CTIM-3) to analyse the microstructures in the system it...

2010
Jacques Livage

A wide range of vanadium oxides have been obtained via the hydrothermal treatment of aqueous V(V) solutions. They exhibit a large variety of nanostructures ranging from molecular clusters to 1D and 2D layered compounds. Nanotubes are obtained via a self-rolling process while amazing morphologies such as nano-spheres, nano-flowers and even nano-urchins are formed via the self-assembling of nano-...

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