The H-Na (Hydrogen-Sodium) system

San-Martin, A.; Manchester, F. D.

doi:10.1007/bf03029300

Cited by 15 publications

(11 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Literature Reviewmentioning

confidence: 99%

“…The H-Na system was reviewed by San-Martin and Manchester [ 55 ]. Based on some of the earlier studies [ 56 – 58 ], they [ 55 ] predicted that at the atmospheric pressure the maximum solubility of H in solid Na should be less than 8 × 10 −5 at.%. Since no experimental measurement of the solubility could be found in the literature their [ 55 ] prediction will be used during optimization in the present work.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Based on some of the earlier studies [ 56 – 58 ], they [ 55 ] predicted that at the atmospheric pressure the maximum solubility of H in solid Na should be less than 8 × 10 −5 at.%. Since no experimental measurement of the solubility could be found in the literature their [ 55 ] prediction will be used during optimization in the present work. The solubility of H in liquid Na was measured by several researchers [ 59 – 64 ] in the mid-1900s in the temperature range from 373 to 723 K at the atmospheric pressure.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The XRD measurement by Kuznetsov and Shkrabkina [ 72 ] at different temperatures did not show any phase transformation of NaH up to the decomposition temperature. They [ 72 ] also observed that the lattice parameter of NaH increases linearly from a = 0.4872 nm at room temperature to 0.5000 nm at 673 K. Later San-Martin and Manchester [ 55 ] reported the following equation to fit the data of Kuznetsov and Shkrabkina [ 72 ]:

Qiu et al [ 73 ] also calculated the lattice parameter of NaH as 0.4857 nm using the first principle which is close to the reported values by [ 72 ].…”

Section: Literature Reviewmentioning

confidence: 99%

See 3 more Smart Citations

Thermodynamic Modeling of Hydrogen Storage Capacity in Mg-Na Alloys

Abdessameud

Mezbahul-Islam

Medraj

2014

The Scientific World Journal

View full text Add to dashboard Cite

Thermodynamic modeling of the H-Mg-Na system is performed for the first time in this work in order to understand the phase relationships in this system. A new thermodynamic description of the stable NaMgH 3 hydride is performed and the thermodynamic models for the H-Mg, Mg-Na, and H-Na systems are reassessed using the modified quasichemical model for the liquid phase. The thermodynamic properties of the ternary system are estimated from the models of the binary systems and the ternary compound using CALPHAD technique. The constructed database is successfully used to reproduce the pressure-composition isotherms for MgH 2 + 10 wt.% NaH mixtures. Also, the pressure-temperature equilibrium diagram and reaction paths for the same composition are predicted at different temperatures and pressures. Even though it is proved that H-Mg-Na does not meet the DOE hydrogen storage requirements for onboard applications, the best working temperatures and pressures to benefit from its full catalytic role are given. Also, the present database can be used for thermodynamic assessments of higher order systems.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Qiu et al [ 73 ] also calculated the lattice parameter of NaH as 0.4857 nm using the first principle which is close to the reported values by [ 72 ].…”

Section: Literature Reviewmentioning

confidence: 99%

See 2 more Smart Citations

Thermodynamic Modeling of Hydrogen Storage Capacity in Mg-Na Alloys

Abdessameud

Mezbahul-Islam

Medraj

2014

The Scientific World Journal

View full text Add to dashboard Cite

show abstract

“…[18][19][20] In the present investigation, Cu-3 mass%Ti alloys are chosen since Ti is an element of its high affinity with hydrogen. 21) Moreover, the alloy is commercially available, and has been widely used for high-strength electrical conducting materials such as lead frames and connectors.…”

Section: Introductionmentioning

confidence: 99%

Grain-Size Refinements of Cu-3 mass%Ti Alloys by HDDR Treatments in Correlating with Their Electrical and Mechanical Properties

et al. 2009

View full text Add to dashboard Cite

The present paper describes the grain size refinements of Cu-3 mass%Ti alloys by hydrogen heat-treatment of so-called HydrogenationDisproportionation-Desorption-Recombination (HDDR) process. During hydrogenation process, the disproportionation reaction occurred with forming of Ti hydrides in the alloy. With decomposition of Ti hydrides by the subsequent desorption process, Ti resolved into Cu matrix. In consequence, the original solid solution phase of the alloys formed. This means that the HDDR phenomena could take place in the Cu-3 mass%Ti alloy. The grain size of the alloy is found to be about 20-50 nm after HDDR treatments such as hydrogenation treatment at 350 C under hydrogen pressure of 7.5 MPa for 48 h, followed by the hydrogen desorption treatment at 530 C for 4 h in vacuum. On the other hand, it is found that remarkable simultaneous improvements of mechanical strength of 1100 MPa and electrical properties of 21%IACS are obtained in the hydrogenated alloy.

show abstract

Metal Hydrides

Zhang

Verbraeken

Tassel

et al. 2017

Handbook of Solid State Chemistry

View full text Add to dashboard Cite

This chapter discusses the various classes of hydride compounds, with a special focus on saline and metallic hydrides as well as oxyhydrides. It includes the following topics: thermodynamic stability, crystal chemistry, synthesis, and physical properties. The chapter also highlights recent progress in understanding hydride ion mobility in alkaline earth hydrides. It further deals with hydride compounds and in particular those containing alkali, alkaline earth, and transition and rare earth metals. The saline hydrides, that is, AH and AeH2(with ALi, Na, K, Rb, and Cs; AeMg, Ca, Sr, and Ba) are proper ionic materials, in which hydrogen is present as hydride anions, H−. Saline hydrides show many similarities with their halide analogues, especially concerning crystal and electronic structures and, perhaps to a lesser extent, physical attributes such as brittleness, hardness, and optical properties.

show abstract

The H-Na (Hydrogen-Sodium) system

Cited by 15 publications

References 38 publications

Thermodynamic Modeling of Hydrogen Storage Capacity in Mg-Na Alloys

Thermodynamic Modeling of Hydrogen Storage Capacity in Mg-Na Alloys

Grain-Size Refinements of Cu-3 mass%Ti Alloys by HDDR Treatments in Correlating with Their Electrical and Mechanical Properties

Metal Hydrides

Contact Info

Product

Resources

About