Acid–Base Properties of Single-Phase Aluminum Oxides Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 2005, Volume: 46, Number: 1, Pages: 132-137 Pages count : 6 DOI: 10.1007/s10975-005-0020-0 | ||
Tags | Oxide; Aluminum; Hydroxyl; Catalysis; Absorption Band | ||
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Abstract:
It was found that the surface of single-phase aluminum oxides contains terminal, bridging, and hydrogen-bonded hydroxyl groups, which differ in both concentration and position of related absorption bands. A transition from η-Al2O3 to θ-Al2O3 does not change the number of absorption bands, but the intensities of these bands decrease. The total concentration of Lewis acid sites in single-phase oxides increases from 2.5 to 5.34 µmol/m2 for γ-Al2O3 and θ-Al2O3, respectively. As distinct from other species, η-Al2O3 contains strong Lewis acid sites (ν(CO) = 2238 cm−1). The total concentration of basic sites in aluminum oxides prepared by boehmite dehydration at 600, 800, and 1000°C decreases from 4.86 to 3.72 µmol/m2.
Cite:
Kul’ko E.V.
, Ivanova A.S.
, Budneva A.A.
, Paukshtis E.A.
Acid–Base Properties of Single-Phase Aluminum Oxides
Kinetics and Catalysis. 2005. V.46. N1. P.132-137. DOI: 10.1007/s10975-005-0020-0 WOS Scopus РИНЦ
Acid–Base Properties of Single-Phase Aluminum Oxides
Kinetics and Catalysis. 2005. V.46. N1. P.132-137. DOI: 10.1007/s10975-005-0020-0 WOS Scopus РИНЦ
Original:
Кулько Е.В.
, Иванова А.С.
, Буднева А.А.
, Паукштис Е.А.
Кислотно-основные свойства фазовооднородных оксидов алюминия
Кинетика и катализ. 2005. Т.46. №1. С.141-146. RSCI РИНЦ
Кислотно-основные свойства фазовооднородных оксидов алюминия
Кинетика и катализ. 2005. Т.46. №1. С.141-146. RSCI РИНЦ
Dates:
Submitted: | Nov 27, 2003 |
Published print: | Jan 1, 2005 |
Identifiers:
Web of science | WOS:000227731700020 |
Scopus | 2-s2.0-15444378012 |
Elibrary | 13494815 |
Chemical Abstracts | 2005:197946 |
Chemical Abstracts (print) | 142:380078 |
OpenAlex | W2089769816 |