STUDY OF LITHIUM ENCAPSULATION IN POROUS MEMBRANE USING ION AND NEUTRON BEAMS.

1 CECCIO Giovanni
Co-authors:
1 CANNAVO’ Antonino 1 HORAK Pavel 1 TORRISI Alfio 1 TOMANDL Ivo 1 HNATOWICZ Vladimir 1 VACIK Jiri
Institution:
1 Nuclear Physics Institute, Academy of Sciences of the Czech Republic, CZ-25068 Řež, Czech Republic, ceccio@ujf.cas.cz
Conference:
10th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 17th - 19th 2018
Proceedings:
Proceedings 10th International Conference on Nanomaterials - Research & Application
Pages:
701-706
ISBN:
978-80-87294-89-5
ISSN:
2694-930X
Published:
28th February 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
22 views / 5 downloads
Abstract

Ion track-etched membranes are porous systems obtained by etching of the latent ion tracks using a suitable etchant solution. In this work, control of the pores’ spatial profiles and dimensions in PET polymers was achieved by varying etching temperature and etching time. For determination of the pores’ shape, Ion Transmission Spectroscopy technique was employed. In this method, alterations of the energy loss spectra of the transmitted ions reflect alterations in the material density of the porous foils, as well as alterations of their thickness. Simulation code, developed by the team, allowed the tomographic study of the ion track 3D geometry and its evolution during chemical etching. From the doping of porous membranes with lithium-based solution and its analysis by Thermal Neutron Depth Profiling method, the ability of porous PET membranes to encapsulate nano-sized material was also inspected. The study is important for various applications, e.g., for catalysis, active agents, biosensors, etc.

Keywords: Latent ion tracks, etching, doping, Ion Transmission Spectroscopy, Thermal Neutron Depth Profiling
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