Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/7775
Title: Surface charge density determination in electric double layered magnetic fluids
Issue Date: 1-Jun-2013
Publisher: Sociedade Brasileira de Física
Description: We analyze potentiometric and conductimetric measurements, simultaneously performed in several complex systems (Brönsted acid-base-type). The results show an excellent agreement between reported and obtained values of the dissociation constants of the involved equilibria. A similar analysis is proposed to account, in electric double layered magnetic fluids (EDL-MF), for the charging of the particle surface based on a proton transfer proccess at the interface with the bulk dispersion. This model allows to relate the pH dependence of the phase diagram to the variations of the nanoparticle surface charge density, which leads to a useful method to monitor the colloidal stability of EDL-MF.
URI: http://koha.mediu.edu.my:8181/jspui/handle/123456789/7775
Other Identifiers: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000300008
http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=2b&spage=501
Appears in Collections:Physics and Astronomy

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