Polyamide–thallium selenide composite materials via temperature and pH controlled adsorption–diffusion method

2014 ◽  
Vol 317 ◽  
pp. 818-827 ◽  
Author(s):  
Remigijus Ivanauskas ◽  
Linas Samardokas ◽  
Marius Mikolajunas ◽  
Darius Virzonis ◽  
Jonas Baltrusaitis
Langmuir ◽  
2000 ◽  
Vol 16 (14) ◽  
pp. 5980-5986 ◽  
Author(s):  
D. A. Styrkas ◽  
V. Bütün ◽  
J. R. Lu ◽  
J. L. Keddie ◽  
S. P. Armes

2016 ◽  
Vol 18 (47) ◽  
pp. 32210-32221 ◽  
Author(s):  
Nathalie Mager ◽  
Wouter S. Lamme ◽  
Samuel Carlier ◽  
Sophie Hermans

Nanocarbon supported catalysts were prepared from water-soluble molecular clusters by pH controlled impregnations in order to probe the clusters/surface interactions and to maximize them.


MICC 90 ◽  
1991 ◽  
pp. 773-776
Author(s):  
N. G. Beriozkina ◽  
M. N. Larichev ◽  
I. O. Leipunsky ◽  
G. L. Eremin ◽  
N. N. Dergunov

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Othmane Khalifi Taghzouti ◽  
Khalil El Mabrouk ◽  
Meriame Bricha ◽  
Khalid Nouneh

2000 ◽  
Vol 61 (4) ◽  
pp. 4659-4660 ◽  
Author(s):  
In Chan Kim ◽  
Dinko Cule ◽  
Salvatore Torquato

Chemija ◽  
2021 ◽  
Vol 32 (2) ◽  
Author(s):  
Linas Samardokas ◽  
Remigijus Ivanauskas ◽  
Skirma Žalenkienė ◽  
Algimantas Ivanauskas

In this work, we investigated the formation of Tl-Se layers followed by doping with metal cations. A two-stage adsorption/diffusion process used to form Tl-Se layers involves (a) selenization in potassium selenotrithionate solution followed by (b) treatment with Tl+ precursor solutions. These layers have been successfully doped with Cu+/Cu2+, Ga3+ and Ag+ cations using a cation exchange reaction. The resulting chemical compositions of Tl-Se and Tl-M-Se (M = Cu, Ga, Ag) layers were investigated using the EDS and AAS methods. The bulk elemental composition and the Tl/Se molar ratio of the Tl-Se layers varied with the concentration of the Tl+ precursor solution, the exposure time in the Tl+ precursor solution, and the form of the Tl+ in the solution, whereas the EDS analysis showed that the surface was slightly enriched in thallium. The optical properties of the formed layers were studied. These layers were identified using room temperature reflection spectrum, the values of absorption edge, bandgap (Eg), band tail width (Urbach energy, EU) of the localised states, Steepness parameter (σ) and electron–phonon interaction (Ee-p).


Author(s):  
R.R. Russell

Transmission electron microscopy of metallic/intermetallic composite materials is most challenging since the microscopist typically has great difficulty preparing specimens with uniform electron thin areas in adjacent phases. The application of ion milling for thinning foils from such materials has been quite effective. Although composite specimens prepared by ion milling have yielded much microstructural information, this technique has some inherent drawbacks such as the possible generation of ion damage near sample surfaces.


Author(s):  
K.P.D. Lagerlof

Although most materials contain more than one phase, and thus are multiphase materials, the definition of composite materials is commonly used to describe those materials containing more than one phase deliberately added to obtain certain desired physical properties. Composite materials are often classified according to their application, i.e. structural composites and electronic composites, but may also be classified according to the type of compounds making up the composite, i.e. metal/ceramic, ceramic/ceramie and metal/semiconductor composites. For structural composites it is also common to refer to the type of structural reinforcement; whisker-reinforced, fiber-reinforced, or particulate reinforced composites [1-4].For all types of composite materials, it is of fundamental importance to understand the relationship between the microstructure and the observed physical properties, and it is therefore vital to properly characterize the microstructure. The interfaces separating the different phases comprising the composite are of particular interest to understand. In structural composites the interface is often the weakest part, where fracture will nucleate, and in electronic composites structural defects at or near the interface will affect the critical electronic properties.


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