STUDY OF SURFACE-PROPERTIES OF ULTRAFINE DIAMONDS

Authors
Citation
Ga. Chiganova, STUDY OF SURFACE-PROPERTIES OF ULTRAFINE DIAMONDS, Colloid journal of the Russian Academy of Sciences, 56(2), 1994, pp. 212-214
Citations number
7
Categorie Soggetti
Chemistry Physical
ISSN journal
1061933X
Volume
56
Issue
2
Year of publication
1994
Pages
212 - 214
Database
ISI
SICI code
1061-933X(1994)56:2<212:SOSOUD>2.0.ZU;2-5
Abstract
The methods of macroelectrophoresis and potentiometric titration were applied to evaluate and compare the electrosurface and adsorption prop erties of ultrafine diamonds isolated from the products of synthesis b y different techniques. Approximate composition and quantity of the pr otogenic functional groups on the diamond surface were evaluated by th e Boehm method. The ultrafine diamonds obtained by oxidation of non-di amond carbon with air oxygen were shown to be characterized by a highe r content of the protogenic groups including carboxylic ones and by hi gher magnitudes of the electrokinetic potential and adsorption capacit y.