نتایج جستجو برای: bi metallic

تعداد نتایج: 84894  

2009
Sam Bullock Lisa J. Gillie Lindsay P. Harding Craig R. Rice Thomas Riis-Johannessen Martina Whitehead

Underlying recognition phenomena in multi-component self-assembly processes can be exploited for the site-specific inclusion of different metal ions into polymetallic arrays. In the field of metallosupramolecular chemistry this is typically accomplished by programming either (i) the denticity of or (ii) the nature of the donor atoms in the binding sites of a polytopic ligand, prior to self-asse...

1990
Jim Barnett Inderjeet Mani

This paper describes the use of a system of semantic rules to generate noun compounds, vague or polyse-mous words, and cases of metonymy. The rules are bi-directional and are used by the understanding system to interpret the same constructions.

2013
A. Melnikov

We make a step towards the understanding of spin dynamics induced by spin-polarized hot carriers in metals. Exciting the Fe layer of Au/Fe/MgO(001) structures with femtosecond laser pulses, we demonstrate the ultrafast spin transport from Fe into Au using time-resolved MOKE and mSHG for depthsensitive detection of the transient magnetization. Ultrafast spin dynamics is the key for development o...

Journal: :AIP Advances 2021

This work presents a monolithically integrated temperature and humidity sensor based on microelectromechanical systems technology. The working the “bi-metallic” effect has advantages of wide range, high sensitivity, fast detection. polyimide parallel plate capacitive structure with microporous array upper electrode designed for sensitivity response. Numerical analysis COMSOL simulation showed t...

Journal: :Chemical communications 2009
Sam Bullock Lisa J Gillie Lindsay P Harding Craig R Rice Thomas Riis-Johannessen Martina Whitehead

Linking two isomeric tridentate N-chelates together produces a hetero-ditopic ligand capable of selectively binding Hg2+ and Zn2+ ions in a double-stranded helicate.

Journal: :Chemical science 2017
Xi Kang Meng Zhou Shuxin Wang Shan Jin Guodong Sun Manzhou Zhu Rongchao Jin

The atomic-structure characterization of alloy nanoclusters (NCs) remains challenging but is crucial in order to understand the synergism and develop new applications based upon the distinct properties of alloy NCs. Herein, we report the synthesis and X-ray crystal structure of the Pt1Ag28(S-Adm)18(PPh3)4 nanocluster with a tetrahedral shape. Pt1Ag28 was synthesized by reacting Pt1Ag24(SPhMe2)1...

2014
Ramona Y.G. König Michael Schwarze Reinhard Schomäcker Cosima Stubenrauch

Water-in-oil (w/o) microemulsions were used as a template for the synthesis of monoand bi-metallic nanoparticles. For that purpose, w/o-microemulsions containing H2PtCl6, H2PtCl6 + Pb(NO3)2 and H2PtCl6 + Bi(NO)3, respectively, were mixed with a w/o-microemulsion containing the reducing agent, NaBH4. The results revealed that it is possible to synthesize Pt, PtPb and PtBi nanoparticles of ~3–8 n...

Journal: :Materials today communications 2021

We have used density functional theory to study the recently predicted MAX phase borides Hf2AB (A = Pb, Bi) in which mechanical, electronic, thermal, and optical properties been investigated for first time. A good agreement of obtained lattice constants with reported values confirmed well accuracy present calculations. The stiffness (Cij) attest mechanical stability all title compounds. behavio...

Journal: :Science China. Materials 2022

Bismuth oxide (Bi2O3) has received great attention as the promising battery-type anode due to its high theoretical capacity and wide operating voltage window, yet slow reaction kinetics poor cyclability are major obstacles affecting performance of energy storage devices. Herein, by employing bismuth-based metal-organic framework (MOF) CAU-17 both template precursor, Bi-Bi2O3 nanoparticles encap...

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