<div class="csl-bib-body">
<div class="csl-entry">Veronesi, S., Aureliano, A. M., Vlamidis, Y., POMPEI, E., Pfusterschmied, G., Leitgeb, M., Schmid, U., & Heun, S. (2023, September 4). <i>Hydrogen absorption in a novel three-dimensional graphene structure: Towards hydrogen storage applications</i> [Conference Presentation]. CMD30 FisMat 2023, Milan, Italy.</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/192293
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dc.description.abstract
he reduction of fossil fuel consumption relying on renewable energies cannot be done without consideration of their intermittency and needs thus some form of energy storage to manage it [1]. Hydrogen is considered one of the most appealing forms of energy storage. Graphene-based materials suitable for hydrogen storage must feature a high surface-to-volume ratio, in order to accomplish the requirements of real-world applications [2]. We explored the use of a novel three-dimensional graphene structure, which allows circumventing the limitations of the 2D nature of graphene and allows its application in hydrogen absorption. Here we report an
investigation of deuterium-bonding on monolayer graphene conformally grown via the epitaxial growth method on the (0001) face of a porousified 4H-SiC wafer [3]. Deuterium absorption is studied via Thermal Desorption Spectroscopy (TDS), exposing the samples to either atomic (D) or molecular (D2) deuterium. Both hydrogen chemisorption and physisorption, and the morphology of the structure are investigated and related to their effect on hydrogen absorption [4]. In particular, we demonstrate that the three-dimensional graphene structures chemically bind atomic deuterium when exposed to D2. This is the first report of such an event in unfunctionalized graphene-based materials and implies the presence of a catalytic splitting mechanism. Moreover, we show that the three-dimensional dendritic structure of the material temporarily retains the desorbed molecules and causes a delayed emission. The capability of chemisorbing atoms after a catalytic splitting of deuterium, in conjunction with its large surface-to-volume ratio, make this material a promising substrate for hydrogen storage devices. In a further experiment, we for the first time succeeded to obtain the diffusion of metal nanoparticles inside the pores down to the bottom of the porous layer. Thus, the investigation of metal functionalization of this three-dimensional structure is underway. [1]
en
dc.language.iso
en
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dc.subject
hydrogen absorption
en
dc.subject
graphene structure
en
dc.subject
three-dimensional
en
dc.title
Hydrogen absorption in a novel three-dimensional graphene structure: Towards hydrogen storage applications
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore, Italy
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dc.contributor.affiliation
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore, Italy
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dc.contributor.affiliation
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore, Italy
-
dc.contributor.affiliation
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore
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dc.type.category
Conference Presentation
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tuw.researchTopic.id
M2
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E366-02 - Forschungsbereich Mikrosystemtechnik
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tuw.publication.orgunit
E366-01 - Forschungsbereich Mikro- und Nanosensorik
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tuw.author.orcid
0000-0002-2171-7081
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tuw.author.orcid
0009-0003-9700-2239
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tuw.author.orcid
0000-0003-1609-4497
-
tuw.author.orcid
0000-0003-1989-5679
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tuw.event.name
CMD30 FisMat 2023
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tuw.event.startdate
04-09-2023
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tuw.event.enddate
08-10-2023
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Milan
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tuw.event.country
IT
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tuw.event.presenter
Veronesi, Stefano
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tuw.event.track
Multi Track
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wb.sciencebranch
Elektrotechnik, Elektronik, Informationstechnik
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wb.sciencebranch.oefos
2020
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wb.sciencebranch.value
100
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item.grantfulltext
none
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.fulltext
no Fulltext
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crisitem.author.dept
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore, Italy
-
crisitem.author.dept
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore, Italy
-
crisitem.author.dept
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore, Italy
-
crisitem.author.dept
E366-02 - Forschungsbereich Mikrosystemtechnik
-
crisitem.author.dept
E366-02 - Forschungsbereich Mikrosystemtechnik
-
crisitem.author.dept
E366 - Institut für Sensor- und Aktuatorsysteme
-
crisitem.author.dept
NEST, Istituto Nanoscience-CNR and Scuola Normale Superiore
-
crisitem.author.orcid
0000-0002-2171-7081
-
crisitem.author.orcid
0009-0003-9700-2239
-
crisitem.author.orcid
0000-0003-1609-4497
-
crisitem.author.orcid
0000-0003-1989-5679
-
crisitem.author.parentorg
E366 - Institut für Sensor- und Aktuatorsysteme
-
crisitem.author.parentorg
E366 - Institut für Sensor- und Aktuatorsysteme
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crisitem.author.parentorg
E350 - Fakultät für Elektrotechnik und Informationstechnik