Hydrogen storage of multi-walled carbon nanotubes obtained by decomposition of hydrocarbon over Ni-Li/SiO2

Tatsumi Ishihara; Mitsuhiro Kamimura; Isamu Yasuda; Hiroyasu Nishiguchi; Yusaku Takita

doi:10.1081/ESE-200027018

Hydrogen storage of multi-walled carbon nanotubes obtained by decomposition of hydrocarbon over Ni-Li/SiO₂

Tatsumi Ishihara, Mitsuhiro Kamimura, Isamu Yasuda, Hiroyasu Nishiguchi, Yusaku Takita

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Abstract

Hydrogen storage into multi-walled carbon nanotubes obtained by the decomposition of hydrocarbons using Ni-Li/SiO₂ was investigated. The optimized reaction conditions for the synthesis of carbon nanotubes were 873K and W/F = 40 g-cat.h/mol, and carbon nanotubes obtained by C₂H ₆ decomposition were found to exhibit fairly large H₂ storage capacity of 1 wt% at room temperature. The storage capacity increased with decreasing temperature and a capacity of 5 wt% was achieved at 77K, with 66% of adsorbed hydrogen being desorbable. Hydrogen adsorption by π orbital in C-C bond coordination is proposed, observing both weakened Raman adsorption C-C peaks and the thermal release of CH₄ after H₂ storage.

Original language	English
Pages (from-to)	2627-2639
Number of pages	13
Journal	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume	39
Issue number	10
DOIs	https://doi.org/10.1081/ESE-200027018
Publication status	Published - Sept 1 2004

All Science Journal Classification (ASJC) codes

Environmental Engineering

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10.1081/ESE-200027018

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Hydrogen storage of multi-walled carbon nanotubes obtained by decomposition of hydrocarbon over Ni-Li/SiO₂. / Ishihara, Tatsumi; Kamimura, Mitsuhiro; Yasuda, Isamu et al.
In: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, Vol. 39, No. 10, 01.09.2004, p. 2627-2639.

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

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Hydrogen storage of multi-walled carbon nanotubes obtained by decomposition of hydrocarbon over Ni-Li/SiO₂

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