STRUCTURE OF ADSORPTION CENTERS ON A CARBOSIL SURFACE DEDUCED FROM H-1 NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPY DATA OF ADSORBED BENZENE AND WATER-MOLECULES

被引:25
作者
TUROV, VV [1 ]
LEBODA, R [1 ]
BOGILLO, VI [1 ]
SKUBISZEWSKAZIEBA, J [1 ]
机构
[1] MARIE CURIE SKLODOWSKA UNIV,FAC CHEM,PL-20031 LUBLIN,POLAND
关键词
D O I
10.1021/la00003a041
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The structure of benzene and water adsorption complexes on a complex carbon-silica adsorbent (carbosil) surface was studied by H-1 NMR spectroscopy. The adsorbent was obtained by pyrolysis of CH2Cl2 at 500 degrees C on the surface of pyrogeneous silica (Aerosil-300). Disordered fragments of graphite planes were found to be adsorption centers for benzene molecules. Water molecules are sorbed on the residual hydroxyl groups of silica as well as at oxygen-containing adsorption centers of the carbon material. The thicknesses of the solvation shells of benzene and water of initial aerosil and carbon black particles were determined.
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页码:931 / 935
页数:5
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