Investigation on the existence of optimum interlayer distance for H 2 uptake using pillared-graphene oxide

Byung Hoon Kim; Won G. Hong; Hoi Ri Moon; Sang Moon Lee; Jung Min Kim; Sunwoo Kang; Yongseok Jun; Hae Jin Kim

doi:10.1016/j.ijhydene.2012.07.029

Investigation on the existence of optimum interlayer distance for H ₂ uptake using pillared-graphene oxide

Byung Hoon Kim, Won G. Hong, Hoi Ri Moon, Sang Moon Lee, Jung Min Kim, Sunwoo Kang, Yongseok Jun, Hae Jin Kim

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

In order to prove the existence of an optimum interlayer distance for H₂ uptake, we have obtained H₂ isotherms with respect to the interlayer distance of pillared-graphene oxide (GO) at 1.0 bar and 77 K. Interlayer distances of GO were changed by intercalation of three kinds of diaminoalkanes with a different number of carbon atoms (NH₂(CH ₂)_nNH₂, n = 2, 6, 10) as pillars and changing the subsequent thermal annealing conditions. We found an optimum GO interlayer distance for maximum H₂ uptake at 6.3 similar to the predicted distance from first-principles calculations for graphitic materials, and the value obtained from thermally modulated GO. Our results experimentally corroborate the existence of an optimum interlayer distance and demonstrate the importance of an interlayer distance for the design of materials for H ₂ storage.

Original language	English
Pages (from-to)	14217-14222
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	37
Issue number	19
DOIs	https://doi.org/10.1016/j.ijhydene.2012.07.029
State	Published - Oct 2012

Bibliographical note

Funding Information:
This work was supported by the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea and MKE/KETEP ( 20114030200010 )

Keywords

Diaminoalkane
Hydrogen storage
Optimum interlayer distance
Pillared-graphene oxide

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2012.07.029

Cite this

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title = "Investigation on the existence of optimum interlayer distance for H 2 uptake using pillared-graphene oxide",

abstract = "In order to prove the existence of an optimum interlayer distance for H2 uptake, we have obtained H2 isotherms with respect to the interlayer distance of pillared-graphene oxide (GO) at 1.0 bar and 77 K. Interlayer distances of GO were changed by intercalation of three kinds of diaminoalkanes with a different number of carbon atoms (NH2(CH 2)nNH2, n = 2, 6, 10) as pillars and changing the subsequent thermal annealing conditions. We found an optimum GO interlayer distance for maximum H2 uptake at 6.3 similar to the predicted distance from first-principles calculations for graphitic materials, and the value obtained from thermally modulated GO. Our results experimentally corroborate the existence of an optimum interlayer distance and demonstrate the importance of an interlayer distance for the design of materials for H 2 storage.",

keywords = "Diaminoalkane, Hydrogen storage, Optimum interlayer distance, Pillared-graphene oxide",

author = "Kim, {Byung Hoon} and Hong, {Won G.} and Moon, {Hoi Ri} and Lee, {Sang Moon} and Kim, {Jung Min} and Sunwoo Kang and Yongseok Jun and Kim, {Hae Jin}",

note = "Funding Information: This work was supported by the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea and MKE/KETEP ( 20114030200010 ) ",

year = "2012",

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doi = "10.1016/j.ijhydene.2012.07.029",

language = "English",

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T1 - Investigation on the existence of optimum interlayer distance for H 2 uptake using pillared-graphene oxide

AU - Kim, Byung Hoon

AU - Hong, Won G.

AU - Moon, Hoi Ri

AU - Lee, Sang Moon

AU - Kim, Jung Min

AU - Kang, Sunwoo

AU - Jun, Yongseok

AU - Kim, Hae Jin

N1 - Funding Information: This work was supported by the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea and MKE/KETEP ( 20114030200010 )

PY - 2012/10

Y1 - 2012/10

N2 - In order to prove the existence of an optimum interlayer distance for H2 uptake, we have obtained H2 isotherms with respect to the interlayer distance of pillared-graphene oxide (GO) at 1.0 bar and 77 K. Interlayer distances of GO were changed by intercalation of three kinds of diaminoalkanes with a different number of carbon atoms (NH2(CH 2)nNH2, n = 2, 6, 10) as pillars and changing the subsequent thermal annealing conditions. We found an optimum GO interlayer distance for maximum H2 uptake at 6.3 similar to the predicted distance from first-principles calculations for graphitic materials, and the value obtained from thermally modulated GO. Our results experimentally corroborate the existence of an optimum interlayer distance and demonstrate the importance of an interlayer distance for the design of materials for H 2 storage.

AB - In order to prove the existence of an optimum interlayer distance for H2 uptake, we have obtained H2 isotherms with respect to the interlayer distance of pillared-graphene oxide (GO) at 1.0 bar and 77 K. Interlayer distances of GO were changed by intercalation of three kinds of diaminoalkanes with a different number of carbon atoms (NH2(CH 2)nNH2, n = 2, 6, 10) as pillars and changing the subsequent thermal annealing conditions. We found an optimum GO interlayer distance for maximum H2 uptake at 6.3 similar to the predicted distance from first-principles calculations for graphitic materials, and the value obtained from thermally modulated GO. Our results experimentally corroborate the existence of an optimum interlayer distance and demonstrate the importance of an interlayer distance for the design of materials for H 2 storage.

KW - Diaminoalkane

KW - Hydrogen storage

KW - Optimum interlayer distance

KW - Pillared-graphene oxide

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