Hydrogen sorption enhancement in cold-rolled and ball-milled CaNi5

Huot, Jacques; Tousignant, Manuel

doi:10.1007/s10853-017-1250-z

Cited by 11 publications

(7 citation statements)

References 25 publications

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“…This is usually explained by a thin surface oxide, which prevents hydrogen diffusion to the bare metal. Recently, it has been shown that cold rolling could greatly enhance the first hydrogenation of LaNi 5 [236] and CaNi 5 [237]. From the literature, the maximum capacity of CaNi 5 and LaNi 5 are, respectively, 1.8 wt% [238] and 1.5 wt% [231].…”

Section: Effect Of Cold Rolling On Metal Hydridesmentioning

confidence: 99%

Mechanochemistry of Metal Hydrides: Recent Advances

et al. 2019

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This paper is a collection of selected contributions of the 1st International Workshop on Mechanochemistry of Metal Hydrides that was held in Oslo in May 2018. In this paper, the recent developments in the use of mechanochemistry to synthesize and modify metal hydrides are reviewed. A special emphasis is made on new techniques beside the traditional way of ball milling. High energy milling, ball milling under hydrogen reactive gas, cryomilling and severe plastic deformation techniques such as High-Pressure Torsion (HPT), Surface Mechanical Attrition Treatment (SMAT) and cold rolling are discussed. The new characterization method of in-situ X-ray diffraction during milling is described.

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Section: Effect Of Cold Rolling On Metal Hydridesmentioning

confidence: 99%

Mechanochemistry of Metal Hydrides: Recent Advances

et al. 2019

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“…Therefore, nanocrystallinity alone could not explain the behaviour of this system. Dislocations and defects could lead to a faster first hydrogenation in metal hydrides and was shown for cold rolled alloys [23,24].…”

Section: Activation Processmentioning

confidence: 84%

Microstructure and Hydrogen Storage Properties of Ti1V0.9Cr1.1 Alloy with Addition of x wt % Zr (x = 0, 2, 4, 8, and 12)

Sleiman

Huot

2017

Inorganics

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Abstract:The effect of adding Zr on microstructure and hydrogen storage properties of BCC Ti 1 V 0.9 Cr 1.1 synthesized by arc melting was studied. The microstructures of samples with Zr were multiphase with a main BCC phase and secondary Laves phases C15 and C14. The abundance of secondary phases increased with increasing amount of zirconium. We found that addition of Zr greatly enhanced the first hydrogenation kinetics. The addition of 4 wt % of Zr produced fast kinetics and high hydrogen storage capacity. Addition of higher amount of Zr had for effect of decreasing the hydrogen capacity. The reduction in hydrogen capacity might be due to the increased secondary phase abundance. The effect of air exposure was also studied. It was found that, for the sample with 12 wt % of Zr, exposure to the air resulted in appearance of an incubation time in the first hydrogenation and a slight reduction of hydrogen capacity.

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“…There are three articles [6][7][8] dealing with different materials for hydrogen production and storage. Garroni et al [6] and Hlova et al [7] focused on the use of mechanical milling to induce a metathesis or displacement reaction and produce metal hydrides.…”

Section: Methodsmentioning

confidence: 99%

“…Hlova et al described [7] a novel, quantitative, and solvent-free mechanochemical method to produce alane at room temperature, from a mixture of NaH and AlCl 3 . Huot and Tousignant [8] analyzed the effect of ball milling and cold rolling on the hydrogenation sorption properties of a CaNi 5 alloy.…”

Section: Methodsmentioning

confidence: 99%

Preface to the special section on mechanochemical synthesis

Fuentes

2017

J Mater Sci

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Hydrogen sorption enhancement in cold-rolled and ball-milled CaNi5

Cited by 11 publications

References 25 publications

Mechanochemistry of Metal Hydrides: Recent Advances

Mechanochemistry of Metal Hydrides: Recent Advances

Microstructure and Hydrogen Storage Properties of Ti1V0.9Cr1.1 Alloy with Addition of x wt % Zr (x = 0, 2, 4, 8, and 12)

Preface to the special section on mechanochemical synthesis

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