Effects of Cu-substitution on La0.62Ce0.38(NiCoMnAlSiZr)5.3 metal hydride alloy

Kim, Young; Chao, B. S.; Huang, B.; Nei, Jean

doi:10.1016/j.jallcom.2013.11.039

Cited by 25 publications

(3 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The discharge capacities measured at different discharge currents are plotted in Fig. 6 together with data from a commercialized AB 5 MH alloy [75]. It is obvious to see that Zn1 has slightly higher capacity with similar degradation under higher currents when compared to those in the base alloy Zn0.…”

Section: Electrochemical Measurementmentioning

confidence: 99%

Effects of Zn-addition to C14 metal hydride alloys and comparisons to Si, Fe, Cu, Y, and Mo-additives

Kim¹,

Ouchi²,

Lin

et al. 2016

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

Section: Electrochemical Measurementmentioning

confidence: 99%

Effects of Zn-addition to C14 metal hydride alloys and comparisons to Si, Fe, Cu, Y, and Mo-additives

Kim¹,

Ouchi²,

Lin

et al. 2016

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

“…If the plateau is sharper, the shape of regions 1 and 2 will be closer to an ideal shape and the working capacity of the metal hydrides will be higher during pressure swings. In contrast, to maintain stable storage and release pressures in hydrogen storage fields, a gentle slope is preferred; hence, most reported materials have flat plateaus, ,,− and methods for plateau sharpening are rarely mentioned.…”

Section: Metal Hydrides As Hydrogen Adsorbentsmentioning

confidence: 99%

Hydrogen Direct Adsorptive Separation: Development Status and Trends

Hao

et al. 2020

Energy Fuels

View full text Add to dashboard Cite

Metal hydrides are promising hydrogen storage materials. As a result of their high volume adsorption density and excellent adsorption selectivity, they have also been proposed for use in hydrogen purification; that is, as hydrogen adsorbents for the direct separation of hydrogen from complex mixed gases. In this review, the properties of metal hydride adsorbents are reviewed, including their thermodynamic properties and susceptibility to poisoning by impurity gases. The differences and similarities between common pressure swing adsorption (PSA) techniques and PSA using metal hydride adsorbents are analyzed on the basis of which the principles for cycle procedure design are given. The potential utility of metal hydrides for hydrogen purification has been demonstrated by some lab- and pilot-scale tests, which are also introduced here. On the basis of this review and analysis, elevated-temperature PSA techniques using metal hydrides appear to be a feasible direction for the development of hydrogen purification processes.

show abstract

“…Such changes may cause particle collapse leading to the formation of segregated lanthanum phases, which diminishes the electrical conductivity and increases the surface area leading to increased alloy corrosion. [6] Partial substitutions of the A and B components can also lead to improvement of the maximum discharge capacity of the alloys. For example, the substitution of molybdenum to form La0.35Ce0.65Ni3.54Co0.80-xMn0.35Al0.32Mox (x= 0.00, 0.10, 0.15, 0.20, 0.25) was investigated and it was observed that the composition where x = 0.25 presented the highest discharge capacity and faster electrochemical kinetics compared to the other compositions.…”

Section: Introductionmentioning

confidence: 99%

In situ X-ray Diffraction Investigation of Hydrogen Storage Alloys During Charge and Discharge

et al. 2016

View full text Add to dashboard Cite

Abstract. Metal hydride electrodes have shown to be useful both in secondary batteries, e.g. the Ni/metal hydride system, and more recently in fuel cells, especially for direct borohydride fuel cells. This work provides in situ X-ray diffraction (XRD) results aiming at characterizing the phase transitions of the LaNi4.7Sn0.2Cu0.1 metal hydride alloy with and without Pt in the particle surface when charged electrochemically and chemically by exposition to a borohydride solution. Results have shown that the method of alloy charging leads to different phase predominance and different site occupancies, but both methods lead to almost the same discharge capacity. In the electrolysis process, γ-β phase transitions are predominant during the charge/discharge, while in the chemical charging by exposure to a borohydride solution the α-γ phase transition is more important, indicating occurrence of smaller localized stress in the alloy, with benefit on the material lifetime. Essentially the same phenomena were observed for the alloy with Pt, either with respect to the alloy structure and the electrochemical characteristics.

show abstract

Effects of Cu-substitution on La0.62Ce0.38(NiCoMnAlSiZr)5.3 metal hydride alloy

Cited by 25 publications

References 59 publications

Effects of Zn-addition to C14 metal hydride alloys and comparisons to Si, Fe, Cu, Y, and Mo-additives

Effects of Zn-addition to C14 metal hydride alloys and comparisons to Si, Fe, Cu, Y, and Mo-additives

Hydrogen Direct Adsorptive Separation: Development Status and Trends

In situ X-ray Diffraction Investigation of Hydrogen Storage Alloys During Charge and Discharge

Contact Info

Product

Resources

About