The influence of gold on the properties of silica mesoporous materials

• Authors: W. Gac , S. Pasieczna-Patkowska , L. Kępiński
• Languages of publication: EN

Abstracts

EN

The properties of gold modified silica mesoporous materials were investigated on the successive preparation stages. Samples were obtained by the direct introduction of HAuCl4 aqueous solution to the synthesis mixture of silica. It was stated that partial substitution of -Cl with -OH ligands occurred in the diluted solutions of HAuCl4. The replacement of -Cl with -Br groups in gold complexes took place in the synthesis mixture containing hexadecyltrimethylammonium bromide surfactant molecules. It was found that gold species influenced the removal of organic templates from the channels of silica materials. Pore arrangement was not strongly distorted by the presence of small amounts of gold. Heat treatment led to the pronounced changes of the nature of gold species.

• Publisher: Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
• Journal: Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
• Year: 2010
• Volume: 65
• Pages: 100-120

Dates

published

1 - 1 - 2010

online

28 - 1 - 2011

Contributors

author

W. Gac

• Department of Chemical Technology, University of Maria Curie-Skłodowska, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland

author

S. Pasieczna-Patkowska

• Department of Chemical Technology, University of Maria Curie-Skłodowska, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland

author

L. Kępiński

• Institute of Low Temperature and Structure Research, PAS, Okólna 2, 55-422 Wrocław, Poland

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Identifiers

DOI

10.2478/v10063-010-0011-5