UV Spectrophotometric Method for Determination of the Concentration of Acid and Basic Active Sites on the Surface of Catalyst Carriers and Adsorbents | Sciact - CRIS-system of Boreskov Institute of Catalysis

UV Spectrophotometric Method for Determination of the Concentration of Acid and Basic Active Sites on the Surface of Catalyst Carriers and Adsorbents Full article

Journal

Industrial Laboratory
ISSN: 0019-8447

Output data

Year: 1999, Volume: 65, Number: 9, Pages: 594-598 Pages count : 5

Authors

Kovalenko G.A. ¹ , Vanina M.P. ¹

Affiliations

1	Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation

A rapid and reasonably simple UV spectrophotometric method for determining the concentration of acid and basic sites of different strength by direct titration of the surface-active species with weak acids and bases with different values of pKa is described. The concentration of surface-active sites (expressed in μmole/m2) is determined by the amount of adsorption of the corresponding titrant under conditions of formation of a monolayer (a plateau on the adsorption isotherms). The method is tested on catalyst carriers prepared from aluminum oxides and titanium oxides of different texture characteristics and chemical nature.

Kovalenko G.A. , Vanina M.P.
UV Spectrophotometric Method for Determination of the Concentration of Acid and Basic Active Sites on the Surface of Catalyst Carriers and Adsorbents
Industrial Laboratory. 1999. V.65. N9. P.594-598. WOS Scopus РИНЦ ANCAN

Коваленко Г.А. , Ванина М.П.
УФ-спектрофотометрический метод определения концентрации кислотных и основных центров на поверхности носителей и адсорбентов
Заводская лаборатория. Диагностика материалов. 1999. Т.65. №9. С.43-46. РИНЦ

Published print:

Sep 1, 1999

Web of science:	WOS:000087845000007
Scopus:	2-s2.0-33748827474
Elibrary:	13311116
Chemical Abstracts:	2000:516849
Chemical Abstracts (print):	133:216999

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Web of science	1