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Quantifying surface areas of clays by atomic force microscopy
-
Barry R. Bickmore
,
Kathryn L. Nagy
Veröffentlicht/Copyright:
28. März 2015
Abstract
Rapid and accurate determination of the surface area of three kaolinite clay standards, taking into account the complex microtopography of the particles, was achieved using atomic force microscopy images and computerized image analysis. All surface areas were determined to within 3%. Edge surface area is 18.2-30.0% of the total surface area depending on the particular kaolinite standard. Specific surface areas agree to within 4% of published values determined by the BET method. The approach can be applied to clay and nanoparticle samples too small in quantity for BET analysis, since it requires ~11 orders of magnitude less material.
Received: 2001-8-21
Accepted: 2002-1-24
Published Online: 2015-3-28
Published in Print: 2002-5-1
© 2015 by Walter de Gruyter Berlin/Boston
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Artikel in diesem Heft
- Formation of secondary pyrite and carbonate minerals in the Lower Williams Lake tailings basin, Elliot Lake, Ontario, Canada
- Hydroxyl in MgSiO3 akimotoite: A polarized and high-pressure IR study
- High-pressure IR-spectra and the thermodynamic properties of chloritoid
- Infrared and Raman study of interlayer anions CO32–, NO3–, SO42– and ClO4– in Mg/Al-hydrotalcite
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- Neustädtelite and cobaltneustädtelite, the Fe3+ - and Co2+ -analogues of medenbachite
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