نتایج جستجو برای: isomorphous substitution

تعداد نتایج: 57056  

Journal: :Physical review letters 2006
E Janssens G Santambrogio M Brümmer L Wöste P Lievens J Sauer G Meijer K R Asmis

The geometric and electronic structure of bimetallic oxide clusters is studied as a function of their composition with gas phase vibrational spectroscopy. Infrared multiple photon dissociation spectra of titanium-vanadium oxide cluster anions are measured in the 500 to 1200 wave number range and assigned on the basis of harmonic frequencies calculated using density functional theory. Singly sub...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
hossein faghihian mohammad hadi mohammadi

nitrate is an anion of major importance particularly in biological areas. excessive amounts in water supplies indicate pollution from sewage or agricultural effluents. the effects of excessive quantities of nitrate in water are well known. in this research structural modification of natural clinoptilolite by isomorphic substitution was performed. isomorphously substituted zeolite was prepared u...

2014
Sergio Crosby Doanh Tran David Cocke El-Shazly M. Duraia Gary W. Beall

Hydrotalcites have many important applications in catalysis, wastewater treatment, gene delivery and polymer stabilization, all depending on preparation history and treatment scenarios. In catalysis and polymer stabilization, thermal decomposition is of great importance. Hydrotalcites form easily with atmospheric carbon dioxide and often interfere with the study of other anion containing system...

Journal: :The Journal of the Society of Chemical Industry, Japan 1946

Journal: :Chemical communications 2011
Einar André Eilertsen Filippo Giordanino Carlo Lamberti Silvia Bordiga Alessandro Damin Francesca Bonino Unni Olsbye Karl Petter Lillerud

A new zeotype titanium silicate oxidation catalyst with the STT topology has been synthesized from direct synthesis. Ti-STT has a microporous structure with small pore openings, allowing shape selective oxidation catalysis. The isomorphous substitution of Si by Ti in the framework has been confirmed by Raman, FT-IR, UV-VIS and XANES spectroscopies.

Journal: :The Journal of the Society of Chemical Industry, Japan 1952

Journal: :Advanced Energy Materials 2021

Na-Ion Batteries In article number 2102137, Hui Ying Yang and co-workers develop an isomorphous series of cubic spinel XIn2S4 (X = Fe, Co, Mn) as a new type Na-ion battery anode, displaying superfast ultrastable storage performance. The amazing results are due to the synergies between X substitution at spinel's tetrahedral site inherent skeleton octahedral sites.

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