Alkane/Alkene Mixture Diffusion in Silicalite-1 Studied by MAS PFG NMR | Sciact - CRIS-system of Boreskov Institute of Catalysis

Alkane/Alkene Mixture Diffusion in Silicalite-1 Studied by MAS PFG NMR Full article

Journal

Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093

Output data

Year: 2018, Volume: 257, Pages: 128-134 Pages count : 7 DOI: 10.1016/j.micromeso.2017.08.015

Tags

MFI-TYPE ZEOLITES; ELASTIC NEUTRON-SCATTERING; SELF-DIFFUSION; N-ALKANES; CRYSTALLINE MATERIALS; LOADING DEPENDENCE; DIFFUSIVITIES; SIMULATIONS; DYNAMICS; TRANSPORT

Authors

Dvoyashkina Nina ¹ , Freude Dieter ¹ , Stepanov Alexander G. ^2,3 , Böhlmann Winfried ¹ , Krishna Rajamani ⁴ , Karger Jörg ¹ , Haase Jürgen ¹

Affiliations

1	Faculty for Physics and Earth Sciences, Leipzig University, Linnestr. 5, 04103 Leipzig, Germany
2	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk, 630090, Russia
3	Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russia
4	Van‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH Amsterdam, The Netherlands

Funding (3)

1	Federal Agency for Scientific Organizations	0303-2016-0003
2	German Research Foundation	HA 1893/16
3	German Research Foundation	Avance 750

The diffusivity of n-alkanes and n-alkenes (C2 to C6) and their mixtures in silicalite-1 was studied by magic-angle spinning pulsed field-gradient nuclear magnetic resonance (MAS PFG NMR) at the temperatures of 273 K, 313 K and 373 K. It could be proved that there is no significant difference between the diffusivities of alkanes, alkenes and their mixtures for equal carbon numbers and equal total loading. The diffusivities of the alkanes, alkenes and their mixtures are found to monotonically decrease with increasing carbon number, in agreement with the results obtained in MD simulations with n-alkanes in silicalite-1.

Dvoyashkina N. , Freude D. , Stepanov A.G. , Böhlmann W. , Krishna R. , Karger J. , Haase J.
Alkane/Alkene Mixture Diffusion in Silicalite-1 Studied by MAS PFG NMR
Microporous and Mesoporous Materials. 2018. V.257. P.128-134. DOI: 10.1016/j.micromeso.2017.08.015 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Jun 20, 2017
Accepted:	Aug 10, 2017
Published online:	Aug 12, 2017
Published print:	Feb 1, 2018

Web of science:	WOS:000418106600015
Scopus:	2-s2.0-85028053939
Elibrary:	31060159
Chemical Abstracts:	2017:1398541
OpenAlex:	W2743079850

DB	Citing
Web of science	23
Scopus	25
Elibrary	24
OpenAlex	29