hydrogen storage alloys
Structure and Electrochemical Properties of La4MgNi17.5M1.5 (M=Co,Fe,Mn) Hydrogen Storage Alloys
... comprehensive electrochemical properties of hydrogen storage alloys can be improved obviously by partial substituting Co for Ni[18-19]. Meanwhile, Mn addition can not only decrease the equilibrium ...
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Development of Ti Zr Mn Based Hydrogen Storage Alloys for a Soft Actuator
... for hydrogen storage alloys for the MH actuators are long cycle life, suitable equilibrium pressure for applications, small hysteresis, flat plateau, ease of initial activation, and ...of ...
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Analysis of Inhomogeneities in Hydrogen Storage Alloys: A Comparison of Different Methods
... Pressure-Composition Isotherms (PCIs) are one of the most informative data when performances of hydrogen storage alloys need to be determined. Basically these curves should be composed, at least for ...
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Crystal Structures of La Mg Nix (x=3 4) System Hydrogen Storage Alloys
... excellent hydrogen storage properties that it may not be susceptible to the progressive disproportionation caused by repeated absorption and desorption of ...as hydrogen storage alloys ...
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Phase Structure and Electrochemical Properties of La0.7Ce0.3Ni3.83-xMn0.43Co0.25Al0.26Cu0.48(Fe0.43B0.57)x Hydrogen Storage Alloys
... improved the activation ability and the high-rate dischargeability of the alloy electrodes. The addition of B element has been proved to be effective to enhance the activation performance and the high-rate ...
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Microstructures and Electrochemical Properties of LaNi3.55Co0.2-xMn0.35Al0.15Cu0.75(V0.81Fe0.19)x Hydrogen Storage Alloys
... of hydrogen on the ...Since hydrogen is supplied from the bulk of the alloy at a rate proportional to the concentration gradient of hydrogen, hence the electrode current is controlled by the ...
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Effect of Surface Coating on Electrochemical Properties of Rare Earth-Based AB5-type Hydrogen Storage Alloys
... combination of fluorination and palladium deposition, and discovered a excellent hydrogen storage property. Besides combined treatment, single fluorination was reported to be an effective method [19, 20]. ...
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Improved Electrochemical Properties of Cu-dopped LaNi4.1-xCo0.6Mn0.3Cux (x= 0-0.45) Hydrogen Storage Alloys at 238 K
... 303 K and 238K, respectively. A small and large depressed semicircle can be distinguished respectively at the high-frequency and middle-frequency region, and a straight line, which is related to diffusional process, in ...
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The Effect of Melt spun Treatment on the Properties of La4MgNi17Co2 Hydrogen Storage Alloys
... With the increasing demand for new energy, Nickel/metal hydride (Ni/MH) batteries have been widely studied and used, because they have many advantages, such as high capacity, good over charge/discharge resistance, ...
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Structures and Hydrogen Storage Properties of Mg45M5Co50 (M=Zr, Ni, Al) Ternary Alloys by Mechanical Alloying
... of hydrogen absorption and desorption is too high and also the hydrogenation-dehydrogenation kinetics is not ...based hydrogen storage alloys have been successfully prepared by mechanical ...
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Saturation dynamics of aluminum alloys with hydrogen
... pouring. Alloys 1ХХХ have been used in order to cast large flat-shaped ingots on the vertical foundry machine with the use of the Wagstaff foundry equipment and the Epsilon crystallizers ...
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HYDROGEN TRAPPING IN NIOBIUM VANADIUM ALLOYS
... As one cools the sample for the first time to 10 K one observes that hydrogen is trapped at octahedral sites associated with two substitutional vanadium atoms..[r] ...
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Uphill Effects on Hydrogen Diffusion Coefficients in Pd77Ag23 Alloy Membranes32-36
... The choice of palladium (Pd) and Pd alloys selected for use in hydrogen permeation mem- branes is determined by the values for hydrogen solubility and hydrogen diffu[r] ...
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Hydrogen Permeation of Ni Nb Zr Metallic Glasses in a Supercooled Liquid State
... absorb hydrogen easily at low ...of hydrogen desorption and also the small endothermic peak at around 510 K corresponding to hydrogen desorption from Pd ...the hydrogen solubility of amorphous ...
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Phase Structure and Electrochemical Hydrogen Storage Characteristics of La0.7Ce0.3Ni3.85Mn0.8Cu0.4Fe0.15-x(Fe0.43B0.57)x (x = 0-0.15) Alloys
... Secondly, it is also claimed that the stability of metal hydride gradually decreases with increasing B content [10]. The increase of B content will lower the stability of the alloy hydride and then cause the ...
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Hydrogen Assisted Degradation of Titanium Based Alloys
... titanium alloys whose microstructures contain mostly the phase, when exposed to an external hydrogen environ- ment at around room temperature, will degrade primarily through the repeated formation and ...
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Wind to Hydrogen for Energy Storage
... produce hydrogen and ...electrolyzers. Hydrogen H-Series generators utilize Proton Exchange Membrane (PEM) cell stack and Pressure Swing Adsorption (PSA) technology to produce ultra-high purity ...
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Palladium Alloys for Hydrogen Diffusion Membranes44-50
... Behaviour of this type had not previously been reported for palladium-silver alloys and is not observed in commercial diffusion units, but may occur, as for example in the[r] ...
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Ultrafine hydrogen storage powders
... The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen ...
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(La1.66Mg0.34)Ni7-based alloys : Structural and Hydrogen Storage Properties
... High hydrogen capacity, moderate hydrogen equilibrium pressure as well as light and less expensive elements makes them remarkable from an economical point of ...
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