Selective Catalytic Reduction of NOxwith NH3over Mn, Ce Substitution Ti0.9V0.1O2−δNanocomposites Catalysts Prepared by Self-Propagating High-Temperature Synthesis Method

2011 ◽  
Vol 115 (26) ◽  
pp. 12850-12863 ◽  
Author(s):  
Bin Guan ◽  
He Lin ◽  
Lin Zhu ◽  
Zhen Huang
Keyword(s):  
High Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Synthesis Method ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Ce Substitution

Self-propagating high-temperature synthesis microalloying of MoSi2 with Nb and V

2003 ◽  
Vol 18 (8) ◽  
pp. 1842-1848 ◽  
Author(s):  
F. Maglia ◽  
C. Milanese ◽  
U. Anselmi-Tamburini ◽  
Z. A. Munir
Keyword(s):  
Solid Solution ◽  
High Temperature ◽  
Tetragonal Phase ◽  
Synthesis Method ◽  
The Self ◽  
Alloying Elements ◽  
Alloying Element ◽  
Temperature Synthesis ◽  
Starting Mixture ◽  
High Temperature Synthesis

Microalloying of MoSi2 to form Mo(1−x)MexSi2 (Me = Nb or V) was investigated by the self-propagating high-temperature synthesis method. With alloying element contents up to 5 at.%, a homogeneous C11b solid solution was obtained. For higher contents of alloying elements, the product contained both the C11b and the hexagonal C40 phases. The relative amount of the C40 phase increases with an increase in the content of alloying metals in the starting mixture. The alloying element content in the hexagonal C40 Mo(1−x)MexSi2 phase was nearly constant at a level of about 12 at.% for all starting compositions. In contrast, the content of the alloying elements in the tetragonal phase is considerably lower (around 4 at.%) and increases slightly as the Me content in the starting mixture is increased.

scholarly journals Direct observation of the formation and stabilization of metallic nanoparticles on carbon supports

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhennan Huang ◽  
Yonggang Yao ◽  
Zhenqian Pang ◽  
Yifei Yuan ◽  
Tangyuan Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Metallic Nanoparticles ◽  
Synthesis Method ◽  
Md Simulations ◽  
Graphite Substrate ◽  
Carbon Supports ◽  
Temperature Synthesis ◽  
Excellent Thermal Stability ◽  
High Temperature Synthesis ◽  
Underlying Mechanisms

AbstractDirect formation of ultra-small nanoparticles on carbon supports by rapid high temperature synthesis method offers new opportunities for scalable nanomanufacturing and the synthesis of stable multi-elemental nanoparticles. However, the underlying mechanisms affecting the dispersion and stability of nanoparticles on the supports during high temperature processing remain enigmatic. In this work, we report the observation of metallic nanoparticles formation and stabilization on carbon supports through in situ Joule heating method. We find that the formation of metallic nanoparticles is associated with the simultaneous phase transition of amorphous carbon to a highly defective turbostratic graphite (T-graphite). Molecular dynamic (MD) simulations suggest that the defective T-graphite provide numerous nucleation sites for the nanoparticles to form. Furthermore, the nanoparticles partially intercalate and take root on edge planes, leading to high binding energy on support. This interaction between nanoparticles and T-graphite substrate strengthens the anchoring and provides excellent thermal stability to the nanoparticles. These findings provide mechanistic understanding of rapid high temperature synthesis of metal nanoparticles on carbon supports and the origin of their stability.

A self-propagating high-temperature synthesis method for synthesis of zinc oxide powder

2009 ◽  
Vol 467 (1-2) ◽  
pp. 514-523 ◽  
Author(s):  
Chyi-Ching Hwang ◽  
Cheng-Shiung Lin ◽  
Gaw-Pying Wang ◽  
Cheng-Hsiung Peng ◽  
Shyan-Lung Chung
Keyword(s):  
Zinc Oxide ◽  
High Temperature ◽  
Synthesis Method ◽  
Oxide Powder ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Zinc Oxide Powder

Production of superconducting NbN thin plate and wire by the self-propagating high-temperature synthesis method

1993 ◽  
Vol 12 (7) ◽  
pp. 500-501 ◽  
Author(s):  
M. Ohyanagi ◽  
M. Koizumi ◽  
K. Tanihata ◽  
Y. Miyamoto ◽  
0. Yamada ◽  
...  
Keyword(s):  
High Temperature ◽  
Thin Plate ◽  
Synthesis Method ◽  
The Self ◽  
Temperature Synthesis ◽  
High Temperature Synthesis
Sign in / Sign up

Export Citation Format

Share Document