Pulse EPR Study of Gas Adsorption in Cu2+-Doped Metal–Organic Framework [Zn2(1,4-bdc)2(dabco)]

Pulse EPR Study of Gas Adsorption in Cu2+-Doped Metal–Organic Framework [Zn2(1,4-bdc)2(dabco)] Full article

Journal

Applied Magnetic Resonance
ISSN: 1613-7507 , E-ISSN: 0937-9347

Output data

Year: 2018, Volume: 49, Number: 3, Pages: 255-264 Pages count : 10 DOI: 10.1007/s00723-017-0962-1

Authors

Poryvaev A.S. ^1,2 , Sheveleva A.M. ^1,2 , Demakov P.A. ^2,3 , Arzumanov S.S. ^2,4 , Stepanov A.G. ^2,4 , Dybtsev D.N. ^2,3 , Fedin M.V. ^1,2

Affiliations

1	International Tomography Center SB RAS
2	Novosibirsk State University, Pirogova st. 2, Novosibirsk, 630090, Russia
3	Nikolaev Institute of Inorganic Chemistry, SB RAS, Lavrentiev av. 3, Novosibirsk, 630090, Russia
4	Boreskov Institute of Catalysis, SB RAS, Novosibirsk

Gas separation and storage are the hot topics for addressing current challenges in energy and environmental science, including the air pollution problems and alternative fuels, and metal–organic frameworks (MOFs) have a great potential in these fields. Herewith, we present the electron paramagnetic resonance (EPR) study of the adsorption of several gases (hydrogen D2, methane 13CH4 and CD4, and carbon dioxide 13CO2) in Cu2+-doped MOF [Zn2(1,4-bdc)2(dabco)]. The obtained compound of composition [Zn1.993Cu0.007(1,4-bdc)2(dabco)] is suitable for studying adsorption geometries at Cu2+ ions and in their closest environments using pulse EPR. In attempt to characterize D2, 13CH4, CD4, and 13CO2 adsorption sites, we applied echo-detected EPR along with hyperfine sublevel correlation spectroscopy and pulse electron-nuclear double resonance spectroscopy. Altogether, these methods demonstrated the preferred location of gas molecules in the framework being at least 6 Å away from the copper ions. In addition, EPR spectroscopy allowed determination of the proton environment of copper and confirmed its incorporation into the MOF lattice, which is hard to establish using other techniques.

Poryvaev A.S. , Sheveleva A.M. , Demakov P.A. , Arzumanov S.S. , Stepanov A.G. , Dybtsev D.N. , Fedin M.V.
Pulse EPR Study of Gas Adsorption in Cu2+-Doped Metal–Organic Framework [Zn2(1,4-bdc)2(dabco)]
Applied Magnetic Resonance. 2018. V.49. N3. P.255-264. DOI: 10.1007/s00723-017-0962-1 WOS Scopus РИНЦ OpenAlex

Submitted:	Jul 28, 2017
Published print:	Mar 1, 2018

Web of science:	WOS:000425002600003
Scopus:	2-s2.0-85034106157
Elibrary:	35476854
OpenAlex:	W2769514976

DB	Citing
Web of science	20
Scopus	21
Elibrary	20
OpenAlex	24