Positron lifetimes in pores of some low-silica zeolites: influence of water content, crystal size and structural type

Bosnar, S.; Bosnar, D.; Ren, N.; Rajić, Nevenka; Grzeta, B.; Subotić, B.

doi:10.1007/s10934-013-9718-y

Authorized Users Only

2013

Authors

Bosnar, S.
Bosnar, D.
Ren, N.
Rajić, Nevenka

Grzeta, B.
Subotić, B.

Article (Published version)

Metadata

Show full item record

Abstract

Positron annihilation lifetime spectroscopy has been used for observation of the free voids in low silica zeolites, of LTA and FAU structure and different crystal size, before and after their heating at different temperatures below 200 A degrees C. Sizes of crystals of the zeolite samples, as well as their structures and water contents, were characterized by X-ray diffraction, scanning electron microscopy, thermogravimetry, and particle size distribution measurements. The number of positron lifetime components as well as their values and intensities, after water removal from the zeolite structure, vary. However, changes are not uniform in all investigated zeolites. The differences are compared and discussed in the dependence of different structure types and crystal sizes of investigated zeolites.

Keywords:

Microporous materials / Positron annihilation spectroscopy / Thermogravimetric analysis (TGA) / Microstructure

Source:
Journal of Porous Materials, 2013, 20, 5, 1329-1336

Publisher:

Springer, Dordrecht

Funding / projects:

Ministry of Science, Education, and Sport of the Republic of CroatiaMinistry of Science, Education and Sports, Republic of Croatia [098-0982904-2953, 098-0982886-2893, 119-1191005-1021]
Oxide-based environmentally-friendly porous materials for genotoxic substances removal (RS-172018)
NSFCNational Natural Science Foundation of China (NSFC) [20803010]
Shanghai Municipal Education CommissionShanghai Municipal Education Commission (SHMEC)
Shanghai Education Development Foundation [09CG02]
Croatian Science Foundation [I-668-2011]

DOI: 10.1007/s10934-013-9718-y

ISSN: 1380-2224

WoS: 000324103300040

Scopus: 2-s2.0-84884287535

[ Google Scholar ]


	5
	5

TY  - JOUR
AU  - Bosnar, S.
AU  - Bosnar, D.
AU  - Ren, N.
AU  - Rajić, Nevenka
AU  - Grzeta, B.
AU  - Subotić, B.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2455
AB  - Positron annihilation lifetime spectroscopy has been used for observation of the free voids in low silica zeolites, of LTA and FAU structure and different crystal size, before and after their heating at different temperatures below 200 A degrees C. Sizes of crystals of the zeolite samples, as well as their structures and water contents, were characterized by X-ray diffraction, scanning electron microscopy, thermogravimetry, and particle size distribution measurements. The number of positron lifetime components as well as their values and intensities, after water removal from the zeolite structure, vary. However, changes are not uniform in all investigated zeolites. The differences are compared and discussed in the dependence of different structure types and crystal sizes of investigated zeolites.
PB  - Springer, Dordrecht
T2  - Journal of Porous Materials
T1  - Positron lifetimes in pores of some low-silica zeolites: influence of water content, crystal size and structural type
EP  - 1336
IS  - 5
SP  - 1329
VL  - 20
DO  - 10.1007/s10934-013-9718-y
ER  -

@article{
author = "Bosnar, S. and Bosnar, D. and Ren, N. and Rajić, Nevenka and Grzeta, B. and Subotić, B.",
year = "2013",
abstract = "Positron annihilation lifetime spectroscopy has been used for observation of the free voids in low silica zeolites, of LTA and FAU structure and different crystal size, before and after their heating at different temperatures below 200 A degrees C. Sizes of crystals of the zeolite samples, as well as their structures and water contents, were characterized by X-ray diffraction, scanning electron microscopy, thermogravimetry, and particle size distribution measurements. The number of positron lifetime components as well as their values and intensities, after water removal from the zeolite structure, vary. However, changes are not uniform in all investigated zeolites. The differences are compared and discussed in the dependence of different structure types and crystal sizes of investigated zeolites.",
publisher = "Springer, Dordrecht",
journal = "Journal of Porous Materials",
title = "Positron lifetimes in pores of some low-silica zeolites: influence of water content, crystal size and structural type",
pages = "1336-1329",
number = "5",
volume = "20",
doi = "10.1007/s10934-013-9718-y"
}

Bosnar, S., Bosnar, D., Ren, N., Rajić, N., Grzeta, B.,& Subotić, B.. (2013). Positron lifetimes in pores of some low-silica zeolites: influence of water content, crystal size and structural type. in Journal of Porous Materials
Springer, Dordrecht., 20(5), 1329-1336.
https://doi.org/10.1007/s10934-013-9718-y

Bosnar S, Bosnar D, Ren N, Rajić N, Grzeta B, Subotić B. Positron lifetimes in pores of some low-silica zeolites: influence of water content, crystal size and structural type. in Journal of Porous Materials. 2013;20(5):1329-1336.
doi:10.1007/s10934-013-9718-y .

Bosnar, S., Bosnar, D., Ren, N., Rajić, Nevenka, Grzeta, B., Subotić, B., "Positron lifetimes in pores of some low-silica zeolites: influence of water content, crystal size and structural type" in Journal of Porous Materials, 20, no. 5 (2013):1329-1336,
https://doi.org/10.1007/s10934-013-9718-y . .