451 5

Ostwald ripening and control of Ag ion reduction degree by ammonium hydroxide in alcohol reduction process

Title
Ostwald ripening and control of Ag ion reduction degree by ammonium hydroxide in alcohol reduction process
Author
오성근
Keywords
Silver nanoparticles; Ostwald ripening; Alcohol reduction process; NH4OH effect
Issue Date
2015-01
Publisher
ELSEVIER SCIENCE INC
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v. 21, Page. 768-771
Abstract
Highly concentrated silver colloidal solutions were synthesized via alcohol reduction process by adding ammonium hydroxide (NH4OH). NH4OH played a role of enhancing the conversion of silver ions to silver atoms by accelerating oxidation reaction of alcohol. Amount of converted Ag0 affected particle size, size distribution, and particle concentration, and it was explained in the aspect of nucleation and growth steps. Also, in the middle of the reaction process, Ostwald ripening was observed in TEM image which has hardly been reported in metallic particles. Colloidal characteristics were analyzed by UV–vis spectrophotometer and TEM, and the degree of Ag+ reduction was determined by ISE.
URI
http://hdl.handle.net/20.500.11754/21108http://www.sciencedirect.com/science/article/pii/S1226086X14002081
ISSN
1226-086X
DOI
10.1016/j.jiec.2014.04.010
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE