Comparison between Mg/Cu Super-Laminates and Mg2Cu Powder in Microstructure and Hydrogen Storage Properties

Abstract:

Article Preview

Super-laminates have been attracting attention since co-authors Ueda et al. reported that Mg/Cu super-laminates showed reversible hydrogenation and dehydrogenation at 473K. The Mg/Cu super-laminates were prepared by a repetitive fold and roll method. Initial activation at 573 K led the super-laminates to absorb hydrogen at 473K. TEM observations of micro/nano-structures in the super-laminates and Mg2Cu powder were performed in order to clarify the process of hydrogenation and dehydrogenation at 473K. The as-rolled Mg/Cu super-laminates have laminated structures in size of sub-micrometer thickness composed of Mg and Cu layers with dense lattice defects. The super-laminates after initial activation keep laminated structure and have uniformly distributed pores with a sub-micrometer diameter. It is considered that these micro/nano-structures of Mg/Cu super-laminates lead to lower dehydrogenation temperature and better kinetics.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1581-1584

Citation:

K. Tanaka et al., "Comparison between Mg/Cu Super-Laminates and Mg2Cu Powder in Microstructure and Hydrogen Storage Properties", Materials Science Forum, Vols. 561-565, pp. 1581-1584, 2007

Online since:

October 2007

Export:

Price:

$38.00

[1] J. F. Stampfer Jr., C. E. Holley Jr., and J. F Suttle: J. of Am. Chem. Soc. Vol. 82 (1960), p.3504.

[2] S. Orimo, H. Fujii, and K. Ikeda: Acta Mater. Vol. 45 (1998), p.331.

[3] G. Liang, J. Huot, S. Boily, and R. Schulz: J. of Alloys Compd. Vol. 305 (2000), p.239.

[4] J. J. Reilly and R. H. Wiswall: T Inorg. Chem. Vol. 6 (1967), p.2220.

[5] J. J. Reilly and R. H. Wiswall: Inorg. Chem. Vol. 7 (1968), p.2254.

[6] T. T. Ueda, M. Tsukahara, Y. Kamiya, and S Kikuchi: Japan Inst. of Metals 2004 Spring Meeting Abstracts, p.170 (in Japanese).

[7] T. T. Ueda, M. Tsukahara, Y. Kamiya, and S. Kikuchi: J. of Alloys and Comp. Vol. 386 (2005), p.253.

[8] N. Takeichi, K. Tanaka, H Tanaka, T. T. Ueda, Y. Kamiya, M. Tsukahara, H. Miyamura, and S. Kikuchi: Proc. of 16th World Hydrogen Energy Conference, (2006), ref. 465. 1- ref. 465. 9.

Fetching data from Crossref.
This may take some time to load.