Fine control of nanoparticle sizes and size distributions: temperature and ligand effects on the digestive ripening process

Nanoscale ◽  
2013 ◽  
Vol 5 (5) ◽  
pp. 1768-1771 ◽  
Author(s):  
Puspanjali Sahu ◽  
B. L. V. Prasad
Keyword(s):  
Size Distributions ◽  
Ripening Process ◽  
Digestive Ripening ◽  
Ligand Effects ◽  
Fine Control ◽  
Nanoparticle Sizes

Synthesis of V-doped In2O3 Nanocrystals via Digestive-Ripening Process and Their Electrocatalytic Properties in CO2 Reduction Reaction

2020 ◽  
Vol 12 (10) ◽  
pp. 11890-11897 ◽  
Author(s):  
Myeong-Geun Kim ◽  
Jinhoo Jeong ◽  
Youngjo Choi ◽  
Jinwoo Park ◽  
Eunjoon Park ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Reduction Reaction ◽  
Ripening Process ◽  
Electrocatalytic Properties ◽  
Digestive Ripening ◽  
Co2 Reduction Reaction

A Theoretical Model for Digestive Ripening

2007 ◽  
Vol 561-565 ◽  
pp. 2279-2282
Author(s):  
Dong Kwon Lee ◽  
Sung Il Park ◽  
Jong K. Lee ◽  
Nong Moon Hwang
Keyword(s):  
Theoretical Model ◽  
Colloidal Particles ◽  
Ostwald Ripening ◽  
Interfacial Free Energy ◽  
Electrostatic Energy ◽  
Capillary Effect ◽  
Monodisperse Particles ◽  
Ripening Process ◽  
Digestive Ripening ◽  
Size Evolution

Recently, gram quantities of monodisperse gold or silver nanoparticles were reported to be produced through a digestive ripening process, in which colloidal particles of size 2 to 40 nm are transformed to nearly monodisperse particles of 4 ~ 5 nm diameter. Digestive ripening, an example for an inverse Ostwald ripening process, is a puzzling phenomenon since it appears to go against the usual capillary effect, i.e., reduction of interfacial free energy. A theoretical model is presented, which accounts for the monodisperse state of such nanoparticles by considering the effect of charges on the particles and thus electrostatic energy during particle size evolution.

254. A Comparison of the Particle Size Distributions for Aerosols Generated During Wet Grinding and Dry Deburring of Beryllium

1999 ◽  
Author(s):  
K.K. Ellis ◽  
R. Buchan ◽  
M. Hoover ◽  
J. Martyny ◽  
B. Bucher-Bartleson ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Wet Grinding
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