In Situ Synthesis, Characterization of SiPMo-X, and Different Catalytic Properties of SiPMo-X and SiPW-X

2006 ◽  
Vol 2006 (15) ◽  
pp. 3054-3060 ◽  
Author(s):  
Chunfeng Shi ◽  
Runwei Wang ◽  
Guangshan Zhu ◽  
Shilun Qiu ◽  
Jun Long
Keyword(s):  
Catalytic Properties ◽  
In Situ Synthesis

In situ synthesis of Ni nanofibers via vacuum thermal reduction and their efficient catalytic properties for hydrogen generation

2018 ◽  
Vol 6 (24) ◽  
pp. 11370-11376 ◽  
Author(s):  
Qinglong Fu ◽  
Pan Yang ◽  
Jingchuan Wang ◽  
Hefang Wang ◽  
Lijun Yang ◽  
...  
Keyword(s):  
Reduction Method ◽  
Hydrogen Generation ◽  
Catalytic Properties ◽  
Decomposition Reaction ◽  
Thermal Reduction ◽  
In Situ Synthesis ◽  
Hydrazine Decomposition

Ni nanofibers have been prepared by a vacuum thermal reduction method, and further used as efficient catalysts for hydrogen generation from hydrous hydrazine decomposition reaction.

Reaction Synthesis of MoSi2-Al2O3 Composite Using MoO3, Al and Si Powders

1994 ◽  
Vol 365 ◽  
Author(s):  
Seetharama C. Deevi ◽  
Sarojini Deevi
Keyword(s):  
In Situ Synthesis ◽  
Heating Rates ◽  
X Ray ◽  
Thermite Mixture ◽  
Rate Determining Step ◽  
Simultaneous Oxidation ◽  
Al2o3 Composite ◽  
Different Temperatures

ABSTRACTIn-situ synthesis of a composite of MoSi2-Al2O3 was carried out by reacting a thermite mixture consisting of MoO3, Al, and Si powders. The reaction was found to be extremely fast and violent, and a diluent was required to moderate the reaction. Thermal behavior of the thermite mixture was studied using DTA at different heating rates, and DTA was interrupted at different temperatures to determine the reaction mechanism. X-ray characterization of the products obtained at different temperatures reveals that the mechanism consists of a reduction of MoO3 by Al to MoO2 followed by a simultaneous oxidation of Al to Al2O3 and synthesis reaction between reduced Mo and Si to form MoSi2. The rate determining step is found to be reduction of MoO2 by Al and oxidation of Al to Al2O3. The thermite reaction was moderated by adding Mo and Si to the mixture of MoO3, Al, and Si such that the ratio of MoSi2 to the thermite was in the range of 60:40 to 90:10.

scholarly journals In situ synthesis and characterization of sulfonic acid functionalized hierarchical silica monoliths

2020 ◽  
Vol 96 (1) ◽  
pp. 67-82
Author(s):  
Richard Kohns ◽  
Ralf Meyer ◽  
Marianne Wenzel ◽  
Jörg Matysik ◽  
Dirk Enke ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
In Situ Synthesis ◽  
Synthesis And Characterization ◽  
Silica Monoliths
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