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A fourier transform - infrared spectroscopy study of hydrogen interaction with metal-organic-frameworks
Descriptive
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Title
A fourier transform - infrared spectroscopy study of hydrogen interaction with metal-organic-frameworks
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Title
Infrared spectroscopy study of hydrogen interaction with metal-organic-frameworks
Name
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Mayer
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Daniel A.
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Daniel A. Mayer
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author
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Chabal
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Yves
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Advisory Committee
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Yves J Chabal
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chair
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Bartynski
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Robert
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Advisory Committee
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Robert Bartynski
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co-chair
Name
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Li
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Jing
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Advisory Committee
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Jing Li
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Rutgers University
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Graduate School - New Brunswick
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Text
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theses
OriginInfo
DateCreated
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2007
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2007
Language
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English
PhysicalDescription
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electronic
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application/pdf
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text/xml
Extent
xii, 86 pages
Abstract
In the following the interaction of hydrogen with Metal-Organic-Frameworks investigated by Fourier-Transform Infrared (FT-IR) Spectroscopy is presented.
The study was performed using two different compounds: (Zn(BDC)(TED)0.5) ·2DMF·0.2 ·H2O and the very similar Ni(NDC)(TED), whose exact structure was not characterized yet.
The removal of the solvent N,N-dimethylformide (DMF) was shown during the initial activation procedure. In addition, the decrease of an adsorbed water mode between 2000 and 4000 cm [superscript -1] could be confirmed while the benzene ring structure of the organic linkers (1610-1550 cm [superscript -1] and 1420-1335 cm [superscript -1]) stayed intact. Furthermore the MOFs were exposed to high-pressure hydrogen (300-1000 psi) while performing in-situ FT-IR measurements. For the Zn-MOF new modes in the range from 4000 to 4300 cm [superscript -1] were observed and are believed to represent modes related to adsorption sites of hydrogen inside the MOF. After decreasing the pressure, these modes disappear slowly. No such results could be found for the Ni-MOF.
While the MOFs were exposed to high-pressure hydrogen a very intensive feature around 3400 cm [superscript -1] was observed. This mode was growing over time without any saturation and was identified as water inside the MOF whose origin was determined to be the hydrogen gas.
An additional feature extending from 2900 to 3200 cm [superscript -1] was associated with the destruction of C-H bonds. This development might be attributed to destructive effects of the water adsorption on the MOF or due to contaminations.
When considering MOF materials for storage application it hast be noted that the adsorption properties for water can interfere with other properties of the material.
The study was performed using two different compounds: (Zn(BDC)(TED)0.5) ·2DMF·0.2 ·H2O and the very similar Ni(NDC)(TED), whose exact structure was not characterized yet.
The removal of the solvent N,N-dimethylformide (DMF) was shown during the initial activation procedure. In addition, the decrease of an adsorbed water mode between 2000 and 4000 cm [superscript -1] could be confirmed while the benzene ring structure of the organic linkers (1610-1550 cm [superscript -1] and 1420-1335 cm [superscript -1]) stayed intact. Furthermore the MOFs were exposed to high-pressure hydrogen (300-1000 psi) while performing in-situ FT-IR measurements. For the Zn-MOF new modes in the range from 4000 to 4300 cm [superscript -1] were observed and are believed to represent modes related to adsorption sites of hydrogen inside the MOF. After decreasing the pressure, these modes disappear slowly. No such results could be found for the Ni-MOF.
While the MOFs were exposed to high-pressure hydrogen a very intensive feature around 3400 cm [superscript -1] was observed. This mode was growing over time without any saturation and was identified as water inside the MOF whose origin was determined to be the hydrogen gas.
An additional feature extending from 2900 to 3200 cm [superscript -1] was associated with the destruction of C-H bonds. This development might be attributed to destructive effects of the water adsorption on the MOF or due to contaminations.
When considering MOF materials for storage application it hast be noted that the adsorption properties for water can interfere with other properties of the material.
Note
(type = degree)
M.S.
Note
(type = bibliography)
Includes bibliographical references (p. 81-83).
Subject
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Topic
Physics and Astronomy
Subject
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Topic
Hydrogen
Subject
(ID = SUBJ3);
(authority = ETD-LCSH)
Topic
Fourier transform spectroscopy
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Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.16741
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ETD_476
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doi:10.7282/T3MG7PW3
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ETD graduate
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Open
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Daniel Mayer
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Rutgers University. Graduate School - New Brunswick
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Non-exclusive ETD license
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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