نتایج جستجو برای: magnesium hydride

تعداد نتایج: 42914  

Journal: :Catalysts 2022

Carbon materials play an important role in the development of solid hydrogen storage materials. The main purpose this work is to study low-cost synthesis biomass carbon (BC) and its positive effect on behavior magnesium hydride (MgH2). Herein, it proven that when used together with (MgH2), can be as adsorption desorption channel for hydrogen. initial dehydrogenation temperature MgH2 + 10 wt% BC...

Journal: :Zeitschrift für anorganische und allgemeine Chemie 2023

Abstract Molecular β‐diketiminato (BDI) calcium hydride and n ‐hexyl derivatives are shown to display contrasting reactivities toward bis(pinacolato)diboron (B 2 pin ). Whereas the dimeric constitution of is retained during formation an unusual diborane(6) dianion, initially organocalcium reagent converted a diboranate monomer, [(BDI)Ca{pinB‐Bpin( ‐hex)}]. Attempts effect heterolysis B−B bond t...

2015
Nicholas A. Arnet Thomas R. Dugan Fabian S. Menges Brandon Q. Mercado William W. Brennessel Eckhard Bill Mark A. Johnson Patrick L. Holland

The FeMoco of nitrogenase is an iron-sulfur cluster with exceptional bond-reducing abilities. ENDOR studies have suggested that E4, the state that binds and reduces N2, contains bridging hydrides as part of the active-site iron-sulfide cluster. However, there are no examples of any isolable iron-sulfide cluster with a hydride, which would test the feasibility of such a species. Here, we describ...

Journal: :Dalton transactions 2015
Nandita M Weliange David S McGuinness Michael G Gardiner Jim Patel

The insertion, elimination and isomerisation of octenes with di-n-octylaluminium hydride [HAl(Oct)2], tri-n-octylaluminium [Al(Oct)3] and sec-octylaluminium species have been studied as individual steps in a putative aluminium based contrathermodynamic olefin isomerisation process. While elimination of 1-octene from [Al(Oct)3] is energetically unfavourable, the process is driven by high tempera...

Journal: :Journal of Neutron Research 2021

The newest neutron scattering applications are highly intensity-limited techniques that demand reducing the losses between source and detectors. In addition, nuclear industry demands more accurate data procedures for design optimization of advanced fission reactors, especially treatment fuel moderator materials. To meet these demands, it is necessary to improve existing calculation tools, throu...

Journal: :Talanta 2009
M H Arbab-Zavar M Chamsaz A Yousefi N Ashraf

An electrochemical hydride generation (ECHG) technique was developed to improve the determination of thallium by atomic spectrometry. The technique is based on the catholyte variation system for production of thallium hydride. Using Pb-Sn alloy as cathode, a transient peak shaped signal was achieved and its height, the maximum absorbance value, was taken as an analytical parameter. Parameters t...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Kim F Wong Tzvia Selzer Stephen J Benkovic Sharon Hammes-Schiffer

A comprehensive analysis of the network of coupled motions correlated to hydride transfer in dihydrofolate reductase is presented. Hybrid quantum/classical molecular dynamics simulations are combined with a rank correlation analysis method to extract thermally averaged properties that vary along the collective reaction coordinate according to a prescribed target model. Coupled motions correlate...

2013
Beate Becker Borislav Bogdanović

The reaction betw een catalytically prepared m agnesium hydride (M gH 2*) and [TiCl3(T H F )3] in a molar ratio o f 1.5:1 in T H F yields a highly pyrophoric, X-ray am orphous titanium hydride precipitate with the com position [TiH2 -(M gC l2 -2 T H F )0.2-o.3] (2). This novel titanium hydride has been characterized through hydrolysis and iodolysis, as well as through therm olysis to Ti* and H ...

2008
KYLE C. SMITH YUAN ZHENG TIMOTHY S. FISHER TIMOTHÉE L. POURPOINT ISSAM MUDAWAR

High-pressure metal hydride vehicular hydrogen storage systems can offer good overall gravimetric and volumetric hydrogen densities. Enhanced heat transfer techniques will be essential to achieve established goals for tank filling times. A numerical model is developed to simulate the hydrogen filling process of a subscale high-pressure metal hydride (Ti1.1CrMn) system. The model is validated by...

2001
Randell L. Mills Bala Dhandapani Mark Nansteel Jiliang He Andreas Voigt

Novel inorganic alkali and alkaline earth hydrides of the f o r m u l a MH *, MH 2 * , and MH X * wherein M is the metal, X , is a halide, and H * comprises a novel high binding energy hydride ion were synthesized in a high temperature gas cell by reaction of atomic hydrogen with a catalyst and MH , MH 2 , or MX corresponding to an alkali metal or alkaline e a r t h metal compound, respectively...

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