Morphology and preferred orientation of pulse electrodeposited magnesium

Gummow, Rosalind J., and He, Yinghe (2010) Morphology and preferred orientation of pulse electrodeposited magnesium. Journal of the Electrochemical Society, 157 (4). pp. 45-49.

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A nanocrystalline magnesium material with a high specific surface area is expected to react rapidly and reversibly with hydrogen gas to yield magnesium hydride, a hydrogen storage medium. In this paper, the feasibility of the synthesis of magnesium materials for hydrogen storage applications by pulse electrodeposition of magnesium from ethereal electrolytes containing Grignard reagents was investigated. Deposition onto flat stainless steel electrodes established that, as in dc deposition, the morphology of the deposits varied widely with electrolyte composition and charge density. Irregular, nanocrystalline magnesium films were formed at low current density (0.4 mA cm^−2) and low charge density (1 C cm^−2) using butylmagnesium chloride electrolytes in dibutyl diglyme, while at a higher current density (15 mA cm^−2) in tetrahydrofuran, dense films were favored.

Item ID: 9134
Item Type: Article (Research - C1)
ISSN: 1945-7111
Keywords: electrochemistry, hydrogen storage materials, electrodeposition, magnesium
Date Deposited: 17 Aug 2010 06:16
FoR Codes: 09 ENGINEERING > 0912 Materials Engineering > 091205 Functional Materials @ 60%
09 ENGINEERING > 0912 Materials Engineering > 091207 Metals and Alloy Materials @ 40%
SEO Codes: 85 ENERGY > 8506 Energy Storage, Distribution and Supply > 850606 Hydrogen Storage @ 100%
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