نتایج جستجو برای: alkaline earth metal oxides

تعداد نتایج: 340951  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1987

2011
Yu Zhang Keiji Shimoda Hiroki Miyaoka Takayuki Ichikawa Yoshitsugu Kojima

We demonstrate a method to improve the promising hydrogen storage capabilities of ammonia borane by making composites with alkaline-earth metal hydrides using ball-milling technique. The ball-milling for the mixtures of alkaline-earth metal hydride (MgH2 or CaH2) and ammonia borane (AB) yields a destabilization compared with the ingredient of the mixture, showing the hydrogen capacity of 8.7 an...

Journal: :Journal of environmental sciences 2013
Ali Alinezhadchamazketi Abas Ali Khodadadi Yadollah Mortazavi Ahmad Nemati

Series of mixed metal oxides were synthesized by gel-combustion method and their catalytic activities for soot oxidation were investigated. The catalysts were M-Ce-Zr (M = Mn, Cu, Fe, K, Ba, Sr), and xK-20Mn-Ce-Zr (x = 0, 5, 10, 20), they were characterized by XRD, SEM, TPR and BET surface area techniques. The results of soot temperature programmed oxidation (TPO) in an O2 oxidizing atmosphere ...

Journal: :Organic & biomolecular chemistry 2012
Jörg M Klein Vittorio Saggiomo Lisa Reck Ulrich Lüning Jeremy K M Sanders

We present the use of hydrazone dynamic combinatorial libraries (DCLs) to identify macrocyclic receptors that are selective for alkaline earth metal ions over alkali metal ions. In particular, the toxic heavy metal ions Sr(2+) and Ba(2+) induce characteristic changes in the DCLs. Four macrocycles were isolated and characterised by LCMS, HRMS, NMR and X-ray crystallography; binding studies by UV...

2017
Verónica Rico-Pérez Eleonora Aneggi Alessandro Trovarelli Enrique Rodríguez-Castellón Agustín Bueno-López Elisa Moretti

This study investigates the activity of transition and alkaline-earth metal-doped catalysts supported on ceria or zirconia for the NOx-assisted oxidation of diesel particulate. A series of Cuand Fe-impregnated catalysts over CeO2 and ZrO2 supports were prepared by incipient wetness impregnation and characterized by BET, X-ray diffraction (XRD), and temperature-programmed reduction (TPR) experim...

Journal: :The Journal of Physical Chemistry A 1998

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