Preparation and characterization of bimetallic palladium-copper colloids by thermal decomposition of their acetate compounds in organic solvents

1990 ◽  
Vol 2 (5) ◽  
pp. 564-567 ◽  
Author(s):  
Kunio Esumi ◽  
Takafumi Tano ◽  
Kanjiro Torigoe ◽  
Kenjiro Meguro
Keyword(s):  
Thermal Decomposition ◽  
Organic Solvents ◽  
Bimetallic Palladium

Synthesis and Characterization of Nanocrystalline ZnO Powders by a Direct Thermal Decomposition Route Using Zinc Nitrate Hexahydrate

2013 ◽  
Vol 770 ◽  
pp. 68-71 ◽  
Author(s):  
Supphadate Sujinnapram ◽  
Uraiphorn Termsuk ◽  
Atcharawan Charoentam ◽  
Sutthipoj Sutthana
Keyword(s):  
Thermal Decomposition ◽  
Crystallization Temperature ◽  
Zinc Nitrate ◽  
Zinc Nitrate Hexahydrate ◽  
Absorption Peak ◽  
Synthesis And Characterization ◽  
Nitrate Hexahydrate ◽  
Different Temperatures ◽  
Zno Powders

The nanocrystalline ZnO powders were synthesized by a direct thermal decomposition using zinc nitrate hexahydrate as starting materials. The precursor was characterized by TG-DTA to determine the thermal decomposition and crystallization temperature which was found to be at 325 oC. The precursors were calcined at different temperatures of 400, 500, and 600°C for 4 h. The structure of the prepared samples was studied by XRD, confirming the formation of wurtzite structure. The synthesized powders exhibited the UV absorption below 400 nm (3.10 eV) with a well defined absorption peak at around 285 nm (4.35 eV). The estimated direct bandgaps were obtained to be 3.19, 3.16, and 3.14 eV for the ZnO samples thermally decomposed at 400, 500, and 600°C, respectively.

Synthesis and spectral characterization of bis(β-diketonato)zirconium(IV) and -hafnium(IV) phthalocyaninates

2002 ◽  
Vol 06 (02) ◽  
pp. 114-121 ◽  
Author(s):  
L. A. Tomachynski ◽  
V. Ya. Chernii ◽  
S. V. Volkov
Keyword(s):  
Organic Solvents ◽  
Elemental Analysis ◽  
Central Atom ◽  
Spectral Characterization ◽  
H Nmr ◽  
Vis Spectroscopy ◽  
Cl Atoms

The reaction of PcMCl 2 ( M = Zr , Hf ) with β-diketones is reported. 1 H NMR and elemental analysis suggest the substitution of two Cl atoms for two β-diketone fragments takes place as a result of this reaction and the complexes PcM(β-dik)2 are formed. All obtained complexes are stable and highly soluble in most organic solvents. The data from 1 H and 19 F NMR, and UV-vis spectroscopy suggest the coordination of two β-diketone ligands in a cis geometry about the central atom of the macrocycle. It was shown bis(β-diketonato)zirconium(IV) and hafnium(IV) phthalocyanines containing β-diketones with donor or acceptor groups or with bulky substituents can be obtained.

In situsynthesis and characterization of GaN nanorods through thermal decomposition of pre-grown GaN films

2007 ◽  
Vol 19 (2) ◽  
pp. 025605 ◽  
Author(s):  
P Yan ◽  
D Qin ◽  
Y K An ◽  
G Z Li ◽  
J Xing ◽  
...  
Keyword(s):  
Thermal Decomposition

Fractionation and Characterization of Kraft Lignin by Sequential Precipitation with Various Organic Solvents

2016 ◽  
Vol 5 (1) ◽  
pp. 835-842 ◽  
Author(s):  
Xiao Jiang ◽  
Dhanalekshmi Savithri ◽  
Xueyu Du ◽  
Siddhesh Pawar ◽  
Hasan Jameel ◽  
...  
Keyword(s):  
Organic Solvents ◽  
Kraft Lignin ◽  
Sequential Precipitation

scholarly journals Synthesis and characterization of ZnO nanoparticles by thermal decomposition of a curcumin zinc complex

2014 ◽  
Vol 7 (6) ◽  
pp. 1178-1184 ◽  
Author(s):  
Mutasim I. Khalil ◽  
Maha M. Al-Qunaibit ◽  
Aisha M. Al-zahem ◽  
Joselito P. Labis
Keyword(s):  
Thermal Decomposition ◽  
Zno Nanoparticles ◽  
Zinc Complex ◽  
Synthesis And Characterization
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