The use of carbon nanotube (CNT) and graphene structures as doped and decorated with La atom as an adsorbent and a sensor material for hydrogen molecules was investigated by the density functional theory method. It is seen that the hydrogen interaction increased significantly after the La modification on the CNT and graphene. The fact that the adsorption enthalpy values are smaller than the liquefaction enthalpy value of hydrogen indicates that they can be used as adsorbent materials for hydrogen adsorption. While the adsorption energy values are better in the modification with La doping in the CNT structure, the results in the graphene structure are better in the decoration with the La atom. Charge transfer has occurred between the structures modified with La and the hydrogen molecule. After the hydrogen interaction, HOMO–LUMO gap values decreased in La-modified CNT structures and increased in graphene structures. This signifies that the La-modified CNT structures could be electronic sensors for hydrogen molecules. Consequently, the CNT and graphene structures doped and decorated with La can be used as adsorbents for hydrogen molecules. In addition, La-modified structures have electronic sensor properties.
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March 2023
Research Article|
February 07 2023
Hydrogen molecule adsorption and sensing on lanthanide (La) doped/decorated carbon nanotube and graphene structures
Special Collection:
Functional Coatings
Numan Yuksel
;
Numan Yuksel
(Conceptualization, Investigation, Methodology, Software, Visualization, Writing – original draft)
1
Department of Chemical Engineering, Bursa Technical University
, Mimar Sinan Campus, 16310 Bursa, Turkey
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Ahmet Kose;
Ahmet Kose
(Conceptualization, Investigation, Methodology, Software, Visualization, Writing – original draft)
1
Department of Chemical Engineering, Bursa Technical University
, Mimar Sinan Campus, 16310 Bursa, Turkey
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Derya Düzenli
;
Derya Düzenli
(Conceptualization, Investigation, Writing – original draft, Writing – review & editing)
2
General Directorate of Mineral Research and Exploration
, 06800 Ankara, Turkey
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M. Ferdi Fellah
M. Ferdi Fellah
a)
(Conceptualization, Supervision, Validation, Writing – review & editing)
1
Department of Chemical Engineering, Bursa Technical University
, Mimar Sinan Campus, 16310 Bursa, Turkey
a)Author to whom correspondence should be addressed: mferdi.fellah@btu.edu.tr
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a)Author to whom correspondence should be addressed: mferdi.fellah@btu.edu.tr
Note: This paper is a part of the 2023 Special Topic Collection on Functional Coatings.
J. Vac. Sci. Technol. A 41, 023202 (2023)
Article history
Received:
September 16 2022
Accepted:
January 12 2023
Citation
Numan Yuksel, Ahmet Kose, Derya Düzenli, M. Ferdi Fellah; Hydrogen molecule adsorption and sensing on lanthanide (La) doped/decorated carbon nanotube and graphene structures. J. Vac. Sci. Technol. A 1 March 2023; 41 (2): 023202. https://doi.org/10.1116/6.0002229
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