Synthesis and characterization of nickel oxide particulate annealed at different temperatures

2018 ◽  
Author(s):  
Khem Raj Sharma ◽  
Shilpa Thakur ◽  
N. S. Negi
Keyword(s):  
Nickel Oxide ◽  
Synthesis And Characterization ◽  
Different Temperatures

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 characterization of nickel oxide nanoparticles by sol-gel technique

2020 ◽  
Author(s):  
Infantiya Stephen Grace ◽  
J. Vinola ◽  
Shubramaniyan Deepapriya ◽  
David Rodney John ◽  
A. Aslinjensipriya ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Sol Gel ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Gel Technique

Synthesis and Characterization of Nickel Oxide Nanoparticles from Ni(salen) as Precursor

2013 ◽  
Vol 24 (1) ◽  
pp. 289-297 ◽  
Author(s):  
Afsaneh Khansari ◽  
Morteza Enhessari ◽  
Masoud Salavati-Niasari
Keyword(s):  
Nickel Oxide ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles
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