Testing the Extended Tao-Eldrup Model. Silica Gels Produced with Polymer Template

• Authors: M. Śniegocka , B. Jasińska , J. Wawryszczuk , R. Zaleski , A. Deryło-Marczewska , I. Skrzypek
• Languages of publication: EN

Abstracts

EN

The temperature dependence of o-Ps lifetime in the pores calculated from extended Tao-Eldrup model was compared to the experimental data, collected for a set of silica gels synthesized using the polymer template technique. For the sample with average pore radii 2.0 nm rather good agreement between the model and experiment was found. For the sample with narrow pores (near 1.0 nm) the lifetime spectrum was complex. Except the range of highest temperatures the lifetimes are far from model calculations.

Keywords

EN

78.70.Bj; 61.43.Gt

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)
• 61.43.Gt: Powders, porous materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 107
• Issue: 5
• Pages: 868-873

Dates

published

2005-05

received

2004-09-20

Contributors

author

M. Śniegocka

• Insitute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

B. Jasińska

• Insitute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

J. Wawryszczuk

• Insitute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

R. Zaleski

• Insitute of Physics, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

author

A. Deryło-Marczewska

• Faculty of Chemistry, Department of Adsorption, Maria Curie-Skłodowska University, 20-031 Lublin, Poland

author

I. Skrzypek

• Faculty of Chemistry, Department of Adsorption, Maria Curie-Skłodowska University, 20-031 Lublin, Poland

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Identifiers

DOI

10.12693/APhysPolA.107.868