scholarly journals Interaction between zeolites and cluster compounds. Part 2.—Thermal decomposition of iron pentacarbonyl on zeolites

Author(s):  
Thomas Bein ◽  
Peter A. Jacobs
1998 ◽  
Vol 47 (12) ◽  
pp. 2455-2462 ◽  
Author(s):  
V. V. Semenov ◽  
E. Yu. Ladilina ◽  
S. Ya. Khorshev ◽  
N. P. Makarenko ◽  
Yu. A. Kurskii ◽  
...  

2011 ◽  
Vol 266 ◽  
pp. 012050 ◽  
Author(s):  
S Yamamuro ◽  
M Okano ◽  
T Tanaka ◽  
K Sumiyama ◽  
N Nozawa ◽  
...  

2013 ◽  
Vol 2 (3) ◽  
pp. 333-357 ◽  
Author(s):  
Daniel Amara ◽  
Shlomo Margel

AbstractThe unique chemical and physical properties of the nano and microscale materials have led to important roles in the several scientific and technological fields. The magnetic nano/microparticles are of great interest because of its potential applications in, e.g., hyperthermia, magnetic resonance imaging (MRI), catalytic applications, etc. The decomposition of iron pentacarbonyl is one of the most common methods for the preparation of magnetic iron oxide and iron nanoparticles. However, Fe(CO)5 is severely toxic and alternative precursors should be used. Here, we describe the recent advances in the synthesis and characterization of the elemental iron and iron oxide nano/microcomposite particles by the thermal decomposition of ferrocene. The described synthesis process is based on simple nontoxic approaches including, for example, a solventless process. The particle size and size distribution as well as their composition, crystallinity, shape, and magnetic properties can be controlled via the synthesis conditions.


2020 ◽  
pp. 64-72
Author(s):  
L. V. Kozyreva ◽  
◽  
V. V. Kozyrev ◽  
I. S. Krekova ◽  
◽  
...  

Application of fuller materials for creation of the higt-strength coatings on part operating under abrasive wear is one of the promising ways of the resources increasing of road construction, emergency rescue and other types of equipment. However, in their creation process does not always comply with the environmental safety requirements, which leads to negative consequences for the natural environment and human health. The article presents the research work results of authors team created a coated powder by chemical vapor deposition of metal-organic compounds on the alumina particles surface and its applications for the wear-resistant coatings. A method of applying iron-tungsten coating on powder technical ceramics by thermal decomposition of vapors, containing iron pentacarbonyl and tungsten hexacarbonyl, is characterised by sequential application on powder particles of adhesion layer from mixture of iron pentacarbonyl and carbon monoxide in volume ratio of vapours1:5 at temperature of their thermal decomposition of 250 °С, and then surface layer from mixture of tungsten hexacarbonyl and carbon monoxide in volume ratio of vapours1:5 at temperature of their thermal decomposition of 800 °С. Metallization powder materials are carried out in a closed cycle, excluding contact workers with toxic substances and emissions of pollutants into the atmosphere, which ensures the safety of the production process. Plasma coatings obtained with the necessary physical and mechanical properties are obtained, which proves the effectiveness of the employed approach and promotes resource increase of the machines elements, subjected to abrasive wear.


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