Ruthenium red interaction with alumina surface - FT-IR/PAS studies

被引：9
|
作者：
Ryczkowski, J [1 ]
机构：
[1] Marie Curie Sklodowska Univ, Fac Chem, Dept Chem Technol, PL-20031 Lublin, Poland
来源：
VIBRATIONAL SPECTROSCOPY | 2004年 / 34卷 / 02期
关键词：
alumina; EDTA; ruthenium red; adsorption; Fp-IR/PAS;
D O I：
10.1016/j.vibspec.2003.11.014
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
For the preparation supported ruthenium catalysts ruthenium(III) chloride (RuCl3) is most frequently used. In our earlier investigations, ruthenium red (Ru-red) was applied as the metal precursor of ruthenium catalysts supported on the modified by disodium salt of ethylenediaminetetraacetic acid (EDTA) alumina support. The infrared spectra of Ru-red and EDTA adsorbed on alumina indicated that interaction may occur between adsorbates and the support surface. Application of Fourier transform infrared photoacoustic spectroscopy (FT-IR/PAS) made possible to observe spectral changes, which undergo during interaction between Ru-red <----> alumina and Ru-red <----> EDTA <----> alumina. Depending on the impregnation method applied. Ru-red is interacting with the gamma-Al2O3 support primarily due to physical or chemical adsorption. The possible influence of the preadsorbed EDTA on the Ru-red <----> alumina interaction is discussed. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：247 / 252
页数：6
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