This review highlights various aspects of current palladium membrane research and serves as a comprehensive bibliography covering palladium membrane preparation methods and applications. There are many promising uses for palladium membranes, although widespread use of the available technologies is constrained primarily by the high cost of palladium, lack of durability due to hydrogen embrittlement, and susceptibility to fouling. Various researchers in the field are tackling these problems and fabricating thinner palladium alloy composite membranes that better withstand contaminantion and thermal cycling. What has been accomplished to address these issues and the directions presently being explored are discussed.

Innovations in palladium membrane research

Effects and mechanism of Ti, Ni, Sc, Fe substitution on the thermal stability of zirconium cobalt–hydrogen system

Hydrogen-induced disproportionation characteristics of Zr(1 − x)Hf(x)Co(x = 0, 0.1, 0.2 and 0.3) alloys

Hydrogen storage properties of Zr1-xTixCo intermetallic compound

Improvement on the kinetic and thermodynamic characteristics of Zr1-xNbxCo (x = 0–0.2) alloys for hydrogen isotope storage and delivery

Kinetics and mechanism of hydrogen-induced disproportionation of ZrCo

Surface modification of Zr-based alloys applicable for tritium processing

Charge/discharge characteristics of Mg 2 Ni electrodes were examined by focussing attention on the influence of surface modification by heating in argon. The initial activation was significantly easier for the electrodes heated at 550°C than un-heated ones. The surfaces of electrodes became porous by the heating because of the evaporation of magnesium. A MgO layer was formed during the heating. The improvement of charge/discharge characteristics by the heating was ascribed to the increase in the specific surface area and the porosity of the oxide film, and to the formation of MgNi 2 and nickel phases which should act as the local reaction sites for hydrogen during the charge and discharge processes.

Katsunori Mori

Papers

Kinetics and mechanism of hydrogen-induced disproportionation of ZrCo

Surface modification of Zr-based alloys applicable for tritium processing

Effect of Surface Modification by Heating in Argon on Charge/Discharge Characteristics of Mg2Ni Electrode