12. Microwaves applied to hydrothermal synthesis of nanoparticles

2017 ◽  
pp. 205-224 ◽  
Keyword(s):  
Hydrothermal Synthesis ◽  
Synthesis Of Nanoparticles

Supercritical Hydrothermal Synthesis of Nanoparticles

2004 ◽  
Vol 2004 (0) ◽  
pp. 225-230
Author(s):  
Seiichi TAKAMI ◽  
Satoshi OHARA ◽  
Mitsuo UMETSU ◽  
Takao TSUKADA ◽  
Tadafumi ADSCHIRI
Keyword(s):  
Hydrothermal Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Supercritical Hydrothermal Synthesis

Simulation of Nucleation, Growth, and Aggregation of Nonaparticles in Supercritical Water

2013 ◽  
Vol 316-317 ◽  
pp. 1071-1074
Author(s):  
Lu Zhou ◽  
Shu Zhong Wang ◽  
Hong He Ma
Keyword(s):  
Hydrothermal Synthesis ◽  
Rate Constant ◽  
Supercritical Water ◽  
Metal Oxide Nanoparticles ◽  
Operation Time ◽  
Growth Rate Constant ◽  
Synthesis Reaction ◽  
Synthesis Of Nanoparticles ◽  
Size Evolution ◽  
Nucleation Growth

A simulation model was developed for predicting the particle size evolution in hydrothermal synthesis of nanoparticles in supercritical water. Four elementary kinetic processes, including hydrothermal synthesis reaction, nucleation, growth, and aggregation, were involved based on the population balance equations (PBEs). The homogenous nucleation of metal oxide nanoparticles started at the operation time of 3.72μs. When the rate constant of hydrothermal synthesis reaction lnk increased from 2.8 to 6.16, the nucleation rate increased by three orders of magnitude (1021-1024particles/m3•s) and the nucleation period reduced from 0.2s to less than 0.02s. The APS decreased by approximately half when a ten-fold smaller growth rate constant was adopted in the range of 10-11-10-8.

Continuous hydrothermal synthesis and crystallization of magnetic oxide nanoparticles

2002 ◽  
Vol 17 (9) ◽  
pp. 2410-2416 ◽  
Author(s):  
Linda J. Cote ◽  
Amyn S. Teja ◽  
Angus P. Wilkinson ◽  
Z. John Zhang
Keyword(s):  
Hydrothermal Synthesis ◽  
Elevated Temperatures ◽  
Metal Salt ◽  
Oxide Nanoparticles ◽  
Precipitation Reaction ◽  
Ambient Conditions ◽  
Magnetic Oxide ◽  
Synthesis Of Nanoparticles ◽  
Uniform Particles ◽  
Metal Salt Solution

The continuous hydrothermal synthesis of nanoparticles of two metal oxides (α–Fe2O3 and Co3O4) is described. Two variations of the technique were investigated, involving the precipitation reaction between a metal salt solution and a hydroxide solution at ambient conditions and at elevated temperatures. Elevated temperatures resulted in more uniform particles of α–Fe2O3 and Co3O4, although the actual sizes of the particles were apparently unaffected by the temperature. This behavior was attributed to the species present in solution and the solubilities of the cation(s), both of which were calculated via a thermodynamic model for the systems under study.

12 Microwaves applied to hydrothermal synthesis of nanoparticles

SPARK ◽  
2018 ◽  
Author(s):  
Jacek Wojnarowicz ◽  
Tadeusz Chudoba ◽  
Andrzej Majcher ◽  
Witold Łojkowski
Keyword(s):  
Hydrothermal Synthesis ◽  
Synthesis Of Nanoparticles

Supercritical Hydrothermal Synthesis of Nanoparticles

2018 ◽  
pp. 683-689 ◽  
Author(s):  
Akira Yoko ◽  
Tsutomu Aida ◽  
Nobuaki Aoki ◽  
Daisuke Hojo ◽  
Masanori Koshimizu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Supercritical Hydrothermal Synthesis

Hydrothermal synthesis of nanoparticles-assembled NiO microspheres and their sensing properties

2020 ◽  
Vol 118 ◽  
pp. 113655 ◽  
Author(s):  
Shixiu Cao ◽  
Lingling Peng ◽  
Tao Han ◽  
Bitao Liu ◽  
Dachuan Zhu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Sensing Properties ◽  
Synthesis Of Nanoparticles

Thermodynamic analysis of hydrothermal synthesis of nanoparticles

2018 ◽  
Vol 456 ◽  
pp. 33-45 ◽  
Author(s):  
Nagaravi Kumar Varma Nadimpalli ◽  
Rajdip Bandyopadhyaya ◽  
Venkataramana Runkana
Keyword(s):  
Hydrothermal Synthesis ◽  
Thermodynamic Analysis ◽  
Synthesis Of Nanoparticles
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