Properties of intermetallic compounds suitable for hydrogen storage applications

Dantzer, P.

doi:10.1016/s0921-5093(01)01590-8

Cited by 88 publications

(37 citation statements)

References 20 publications

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“…hydrogen storage alloys) that easily absorb a large amount of hydrogen have potential applications in hydrogen storage, 1,2) thermodynamic devices, 1) actuators or hydride batteries. Much interest has also been paid to changes of the physicochemical properties of alloys induced by hydrogen absorption.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Palladium and Palladium–Platinum Alloy of Various Hydrogen Content

et al. 2006

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Magnetic properties of palladium and palladium-platinum alloy (Pd-Pt) of different hydrogen content were measured in a hydrogen atmosphere at ambient temperature using a superconducting quantum interference device (SQUID) magnetometer. It was found that the magnetic susceptibility of Pd and Pd-Pt alloy decreased with increasing hydrogen content. These results were attributed to a change in the electronic structure of the valence band. Increasing hydrogen content in Pd and Pd-Pt alloy causes the Fermi level to rise and the density of states at Fermi level to decrease. Since the magnetic susceptibility is proportional to the density of states at the Fermi level, the magnetic susceptibility decreases with increasing hydrogen content. The magnetic susceptibility of Pd-Pt was smaller than that of Pd over the whole hydrogen content range. This was ascribed to the higher position of the Fermi level of Pd-Pt than that of Pd.

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Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Palladium and Palladium–Platinum Alloy of Various Hydrogen Content

et al. 2006

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“…In fact, many of the relevant engineering principles were developed and proven during the 1970s and 1980s based on the high-cost, low capacity intermetallic hydrides known at the time. Extensive reviews on the progress of metal hydrides for these applications have been published [208][209][210][211]. However, a consistent road block to the commercialisation of metal hydrides for these applications has been the relatively low H 2 capacity and high cost of traditional intermetallic hydrides based on transition metals [210].…”

Section: Complex Metal Hydrides For Thermal Energy Storagementioning

confidence: 99%

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

et al. 2017

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Hydrogen has a very diverse chemistry and reacts with most other elements to form compounds, which have fascinating structures, compositions and properties. Complex metal hydrides are a rapidly expanding class of materials, approaching multi-functionality, in particular within the energy storage field. This review illustrates that complex metal hydrides may store hydrogen in the solid state, act as novel battery materials, both as electrolytes and electrode materials, or store solar heat in a more efficient manner as compared to traditional heat storage materials. Furthermore, it is highlighted how complex metal hydrides may act in an integrated setup with a fuel cell. This review focuses on the unique properties of light element complex metal hydrides mainly based on boron, nitrogen and aluminum, e.g., metal borohydrides and metal alanates. Our hope is that this review can provide new inspiration to solve the great challenge of our time: efficient conversion and large-scale storage of renewable energy.

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“…In particular, the storage of hydrogen in metals is one of the technologies that has been the focus of extensive research (e. g., Huot (2002); Sakintuna et al (2007)). In general, hydrogen can be stored in metal hydrides under moderate temperature and pressure at volume densities comparable to, or greater than, liquid hydrogen (see, e. g., Dantzer (2002)). Moreover, the release of hydrogen in metal hydrides is an endothermic process, which makes it inherently safe (Huot, 2002).…”

Section: Hydrogen Diffusion In Palladium Nanofilmsmentioning

confidence: 99%

Atomistic long-term simulation of heat and mass transport

Venturini

Wang

Romero

et al. 2014

Journal of the Mechanics and Physics of Solids

114

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We formulate a theory of non-equilibrium statistical thermodynamics for ensembles of atoms or molecules. The theory is an application of Jayne's maximum entropy principle, which allows the statistical treatment of systems away from equilibrium. In particular, neither temperature nor atomic fractions are required to be uniform but instead are allowed to take different values from particle to particle. In addition, following the Coleman-Noll method of continuum thermodynamics we derive a dissipation inequality expressed in terms of discrete thermodynamic fluxes and forces. This discrete dissipation inequality effectively sets the structure for discrete kinetic potentials that couple the microscopic field rates to the corresponding driving forces, thus resulting in a closed set of equations governing the evolution of the system. We complement the general theory with a variational meanfield theory that provides a basis for the formulation of computationally tractable approximations. We present several validation cases, concerned with equilibrium properties of alloys, heat conduction in silicon nanowires and hydrogen desorption from palladium thin films, that demonstrate the range and scope of the method and assess its fidelity and predictiveness. These validation cases are characterized by the need or desirability to account for atomiclevel properties while simultaneously entailing time scales much longer than * Corresponding author E-mail address: ortiz@caltech.edu (M. Ortiz). September 27, 2014 those accessible to direct molecular dynamics. The ability of simple meanfield models and discrete kinetic laws to reproduce equilibrium properties and long-term behavior of complex systems is remarkable. Preprint submitted to Journal of the Mechanics and Physics of Solids

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Properties of intermetallic compounds suitable for hydrogen storage applications

Cited by 88 publications

References 20 publications

Magnetic Properties of Palladium and Palladium–Platinum Alloy of Various Hydrogen Content

Magnetic Properties of Palladium and Palladium–Platinum Alloy of Various Hydrogen Content

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

Atomistic long-term simulation of heat and mass transport

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Properties of intermetallic compounds suitable for hydrogen storage applications

Cited by 88 publications

References 20 publications

Magnetic Properties of Palladium and Palladium&ndash;Platinum Alloy of Various Hydrogen Content

Magnetic Properties of Palladium and Palladium&ndash;Platinum Alloy of Various Hydrogen Content

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

Atomistic long-term simulation of heat and mass transport

Contact Info

Product

Resources

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Magnetic Properties of Palladium and Palladium–Platinum Alloy of Various Hydrogen Content

Magnetic Properties of Palladium and Palladium–Platinum Alloy of Various Hydrogen Content