SYNTHESIS OF METAL AND METAL OXIDE NANOPARTICLES IN THE NANOSPACE OF ULTRATHIN TiO2-GEL FILMS: ROLE OF THE ION-EXCHANGE SITE

AsiaNano 2002 ◽  
2003 ◽  
Author(s):  
JUNHUI HE ◽  
IZUMI ICHINOSE ◽  
SHIGENORI FUJIKAWA ◽  
TOYOKI KUNITAKE
2002 ◽  
Vol 01 (05n06) ◽  
pp. 507-513
Author(s):  
JUNHUI HE ◽  
IZUMI ICHINOSE ◽  
SHIGENORI FUJIKAWA ◽  
TOYOKI KUNITAKE

In this work, we showed that metal salts were easily deposited as aggregates (e.g., ultrathin planar microcrystals) on the surface of TiO 2- gel films in the absence of ion-exchange sites. In contrast, metal ions were efficiently incorporated into ultrathin TiO 2- gel films, when ion-exchange sites were created using Mg ( O - Et )2 as template. A variety of metal ions, including those of main group, transition, and lanthanide elements were successfully doped into TiO 2 thin films by the current approach. Probable distribution of the ion-exchange site in the film interior was discussed.


2018 ◽  
Vol 5 (7) ◽  
pp. 1745-1756 ◽  
Author(s):  
S. M. Briffa ◽  
F. Nasser ◽  
E. Valsami-Jones ◽  
I. Lynch

A key hypothesis in nanosafety assessment is that the NP core chemistry and eco-corona are primary factors controlling toxicity.


Author(s):  
Payam Khodaparast ◽  
Zoubeida Ounaies

Nanoparticle modified polymers have promise as hybrid materials that exhibit properties beyond those predicted by mixing law theories. In the case of metal-oxide nanoparticles in a polymer, it is expected that multifunctional properties of the obtained nanocomposite, including dielectric and mechanical, will be dominated by presence of interface rather than predicted by the inherent properties of individual components. This paper will focus on understanding the role of different types of nanoparticles, namely, titania, silica and alumina and a polymer matrix, Polyvinylidene fluoride (PVDF) in affecting the final dielectric and mechanical properties.


2020 ◽  
Author(s):  
Alba García-Rodríguez ◽  
Fabiola Moreno-Olivas ◽  
Ricard Marcos ◽  
Elad Tako ◽  
Cláudia N. H. Marques ◽  
...  

Abstract The authors have removed this preprint from Research Square


2014 ◽  
Vol 11 (1) ◽  
pp. 23 ◽  
Author(s):  
Pascal Andujar ◽  
Angélique Simon-Deckers ◽  
Françoise Galateau-Sallé ◽  
Barbara Fayard ◽  
Gregory Beaune ◽  
...  

2014 ◽  
Vol 10 (6) ◽  
pp. 1301-1310 ◽  
Author(s):  
Tamara Lozano-Fernández ◽  
Lidia Ballester-Antxordoki ◽  
Nerea Pérez-Temprano ◽  
Elena Rojas ◽  
David Sanz ◽  
...  

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