Optimization of the pore structure of nickel/graphite hybrid materials for hydrogen storage

Byung Joo Kim; Soo Jin Park

doi:10.1016/j.ijhydene.2010.09.097

Optimization of the pore structure of nickel/graphite hybrid materials for hydrogen storage

Byung Joo Kim, Soo Jin Park

Jeonju Institute of Machinery and Carbon Composites

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

39 Scopus citations

Abstract

Nickel/graphite hybrid materials were prepared by mixed acid treatment of graphite flakes, following metal nanoparticle deposition. The textural properties were studied by BET surface area measurement and t-plot methods with N₂/77 K adsorption isotherms. The hydrogen storage characteristics of the nickel/graphite at 298 K and 10 MPa were studied using a pressure-composition-temperature apparatus. The pore structure of the materials was studied as a function of processing conditions. In the optimum material, the hydrogen storage capacity was as high as 4.48 wt.%. The total amount of storage was not proportional to the specific surface area or metal content of the adsorbate. A dipole-induced model on nickel/carbon surfaces is proposed for the hydrogen storage mechanism.

Original language	English
Pages (from-to)	648-653
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	36
Issue number	1
DOIs	https://doi.org/10.1016/j.ijhydene.2010.09.097
State	Published - Jan 2011

Bibliographical note

Funding Information:
This paper was written for the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Programs, funded by the Ministry of Education, Science, and Technology of the Republic of Korea .

Keywords

Dipole-induced model
Hydrogen storage
Nickel/graphite hybrid materials

UN SDGs

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

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10.1016/j.ijhydene.2010.09.097

Cite this

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abstract = "Nickel/graphite hybrid materials were prepared by mixed acid treatment of graphite flakes, following metal nanoparticle deposition. The textural properties were studied by BET surface area measurement and t-plot methods with N2/77 K adsorption isotherms. The hydrogen storage characteristics of the nickel/graphite at 298 K and 10 MPa were studied using a pressure-composition-temperature apparatus. The pore structure of the materials was studied as a function of processing conditions. In the optimum material, the hydrogen storage capacity was as high as 4.48 wt.%. The total amount of storage was not proportional to the specific surface area or metal content of the adsorbate. A dipole-induced model on nickel/carbon surfaces is proposed for the hydrogen storage mechanism.",

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Optimization of the pore structure of nickel/graphite hybrid materials for hydrogen storage

Abstract

Bibliographical note

Keywords

UN SDGs

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