https://doi.org/10.1140/epjd/e2003-00195-4
Copper clusters and small particles stabilized within nanoporous materials
1
Physico-Chemical Research Institute,
Belarusian State University, Minsk, Belarus
2
CCMC-UNAM, Ensenada, Mexico
3
Fritz Haber Institute, Department of Inorganic Chemistry, Berlin, Germany
4
Tomsk Polytechnic University, Tomsk, Russia
5
Institute of Sciences, University of Puebla, Puebla, Mexico
6
Gomel State Technical University, Gomel, Belarus
Corresponding authors: a gurin@bsu.by - b vitalii@ccmc.unam.mx - c alex@fhi-berlin.mpg.de
Received:
10
September
2002
Published online:
3
July
2003
Copper was incorporated into mordenites with variable
SiO2/Al2O3 molar ratio, porous silica xerogels,
natural pumice, and alumina. The UV/Visible spectroscopy
of the copper species produced as the result of hydrogen reduction and
catalytic runs is presented.
Different spectral features were detected assignable to nanoparticles,
few-atomic clusters, oxide forms and Cu(II) compounds. The significant effect
of support upon the redox-behavior of copper is discussed on the basis
of experimental data.
PACS: 36.40.Vz – Optical properties of clusters / 82.75.Vx – Clusters in zeolites
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003