Hydrogen sorption cycling performance of LaNi4.8Sn0.2

Laurencelle, F.; Dehouche, Zahir; Goyette, J.

doi:10.1016/j.jallcom.2005.11.085

Cited by 39 publications

(21 citation statements)

References 23 publications

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“…A similar procedure was applied to present results in order to calculate k coefficients for each alloy (Table 3). Although a shrinking plate model could be an over simplification, we can compare current results to those reported by Laurencelle et al for a LaNi 4.8 Sn 0.2 alloy [16]. Alloy Sn01 will be used as a basis for the comparison as it has a similar chemical composition to the reported material.…”

Section: 4mentioning

confidence: 82%

“…Laurencelle et al [16] analyzed kinetic results in terms of a shrinking plate model characterized by an exponential dependence of the type…”

Section: 4mentioning

confidence: 99%

“…Laurencelle et al presented absorption kinetics results for LaNi 4.8 Sn 0.2 [16]. The activation procedure consisted, as usual, in placing a sample in contact with hydrogen while recording the pressure drop.…”

Section: Introductionmentioning

confidence: 99%

“…It is then important to know how equilibrium parameters change under dynamic conditions. In addition, we only have information about the kinetics of hydrogen absorption and desorption for one particular LaNi 5Àx Sn x alloy [16]. We would like to increase the existing data base, while considering a situation where a container with a given hydrogen pressure at the beginning is being depleted of gas by the hydride forming material.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic measurements of hydrogen reaction with LaNi5−xSnx alloys

Borzone¹,

Baruj²,

Blanco³

et al. 2013

International Journal of Hydrogen Energy

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Metal hydrides AB5Compression Purification a b s t r a c tThe study focuses on the reaction between hydrogen gas and LaNi 5Àx Sn x alloys, where 0 x 0.5, in broad temperature and pressure ranges. It was performed by means of dynamic volumetric techniques using specific equipment developed at our laboratory. IntroductionHydrides belonging to the so-called AB 5 family have been intensively studied during the last decades due to their potential for storing or purifying hydrogen. These alloys combine an extended range of equilibrium pressures with hydrogen and fast reaction kinetics at room temperature. Although their relatively low gravimetric capacity (around 1 wt.% H) in comparison with newly developed hydrogen storage materials hinders their use for mobile applications, they are still convenient for static applications. Among the AB 5 alloys, LaNi 5 has been the object of numerous studies due to its good hydrogen interaction properties at room temperature [1e3], its adequate resistance to cycling degradation[4e6] and to the possibility of recovering the material after degradation by means of a simple thermal treatment [4,7]. Several of LaNi 5 hydrogen interaction properties can be modified or adapted to a specific need by the partial substitution of its elements [8e10]. For example, it is possible to increase the equilibrium pressure by substituting part of La by Ce [11], or to achieve an improvement in electrochemical properties by replacing a fraction of La by Dy [12]. The partial substitution of Ni, on the other hand, has been reported to improve the resistance to thermal and pressure cycling degradation [3]. Ni substitutions also produce changes in the equilibrium pressure which could be useful for the development of applications based on these materials. In particular, it has been found that the substitution of small amounts of Ni by * Corresponding author. Centro Ató mico Bariloche, Av. Bustillo 9500, 8400 Bariloche, Argentina. Tel.: þ54 294 4445278; fax: þ54 294 4445299.E-mail address: baruj@cab.cnea.gov.ar (A. Baruj).Available online at www.sciencedirect.com journal h om epa ge: www.elsev ier.com/locate/he i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 8 ( 2 0 1 3 ) 7 3 3 5 e7 3 4 3

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Section: 4mentioning

confidence: 82%

“…Laurencelle et al [16] analyzed kinetic results in terms of a shrinking plate model characterized by an exponential dependence of the type…”

Section: 4mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic measurements of hydrogen reaction with LaNi5−xSnx alloys

Borzone¹,

Baruj²,

Blanco³

et al. 2013

International Journal of Hydrogen Energy

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“…The first alloy, LaNi 4.8 Sn 0.2 forms one of the most corrosion-resistant hydride for gassolid reaction as demonstrated in several papers [7][8][9]. That feature is very important for the first hydride stage because it faces all the residual contamination from the input flow.…”

Section: Alloys Selectionmentioning

confidence: 99%

Experimental study on a metal hydride based hydrogen compressor

Laurencelle¹,

Dehouche²,

Morin³

et al. 2009

Journal of Alloys and Compounds

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A three-stage metal hydride based hydrogen compressor prototype was built. It has been initially constructed for a hydrogen production facility using a low-pressure alkaline electrolyser. The compression system has been designed to transfer heat recovered from the electrolyser in the hydride beds to allow hydrogen desorption flow. The three-stage compressor achieves a compression ratio of 20:1 atm. It performs a thermal cycling of three AB 5 hydrides between 20 and 80°C. Its flow rate, for 25 g of each hydride bed, reaches about 20 L (NTP) of hydrogen per hour. The prototype is now operational. Some improvements in the heat transfer management system are also carried out before proceeding to the interconnection with the electrolyser and to the extent that the hydrogen produced satisfies the high purity requirement of the hydrides used in the compressor.

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Metal Hydrides

Huot

2010

Handbook of Hydrogen Storage

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Metal hydrides are promising candidates for many stationary and mobile hydrogen storage applications. Presently, the most common use of metal hydrides is as anode material in commercial nickel-metal hydrides (Ni-MH) rechargeable batteries which have replaced conventional nickel-cadmium batteries in many applications. A wide variety of Ni-MH batteries are now on the market with cell sizes ranging from 30 mAh to 250 Ah [1,2]. Some other applications are: hydrogen compression [3], aircraft fire-detectors [4], isotope separation [5], and hydrogen getters for microelectronic packages. Hydride formation is also used in the HDDR process (hydrogenation-disproportionation-desorption-recombination) for the synthesis of magnetic materials such as Nd 2 Fe 14 B [6]. A striking application is as a component of cryocoolers for the ESA Planck mission [7]. Another exciting new application is the use of metal hydrides for switchable mirrors [8]. As we can see, metal hydrides have a wide range of applications. However, most research and development is targeted towards two applications: batteries and hydrogen storage. The former is now widely exploited but the latter is still facing many technical problems. The main advantages of storing hydrogen in a metal hydride are the high hydrogen volumetric densities (sometimes higher than in liquid hydrogen) and the possibility to absorb and desorb hydrogen with a small change in hydrogen pressure [9].The physics of hydrogen in elemental metals was reviewed at the end of the 1970s in thebooksHydrogeninMetals,volumesIandII [10,11].The1970s alsosawtheemergence of the important field of intermetallic compounds as hydride materials. An in-depth review of this field can be found in Hydrogen in Intermetallic Compounds volumes I, and II [12,13]. A review of the propertiesand applications of hydrogen in metals can befound in the third volume of Hydrogen in Metals [14]. The basic properties of the metal-hydrogen system are discussed from a fundamental point of view by Fukai [15]. Although initial studies on nanocrystalline and amorphous metal hydrides were initiated around the 1980s [16], the real emergence of nanocrystalline metal hydrides as a new class of Handbook of Hydrogen Storage. Edited by Michael Hirscher

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Hydrogen sorption cycling performance of LaNi4.8Sn0.2

Cited by 39 publications

References 23 publications

Dynamic measurements of hydrogen reaction with LaNi5−xSnx alloys

Dynamic measurements of hydrogen reaction with LaNi5−xSnx alloys

Experimental study on a metal hydride based hydrogen compressor

Metal Hydrides

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