Hydrogen absorption performances of LaNi5 alloy are sensitive to the surface reactions with poisonous gases, such as oxygen, readily forming oxides/hydroxides. In this study, we report studies on hydrogen behaviour AB5-type storage alloys, formed by LaNi(5–x)Snx (X = 0.2) followed electroless Pd deposition. The uncoated and Pd-coated materials were characterized using scanning electron microsco...

nowadays, palladium compounds due to their especial characteristics used in different industries, mainly in electrical power sources and chemical productions as a catalyst. therefore, pd concentration is increasing in our around that can be contaminant our environment due its toxic effects. in this work, a simple, selective and rapid flow injection method of analysis (fia) has been developed fo...

for Session – 3 Hydrogen from Coal The Influence of Copper Concentration on the Permeability of Pd-Cu Alloy Membranes Bryan D. Morreale, Bret H. Howard US Department of Energy, National Energy Technology Laboratory PO Box 10940, Pittsburgh, PA 15236 Abstract Hydrogen membranes have been identified as a promising technology for extracting pure hydrogen from processes such as coal gasification, h...

We report herein the effect of palladium on the redox electrochemistry of ferrocene monocarboxylic acid encapsulated within an organically modified sol-gel glass network (ORMOSIL). It has been found that amount of palladium and its geometrical distribution significantly alter the redox electrochemistry of FcMCA. The geometrical distribution of palladium has been controlled by two methods: (i) p...

The performance of several palladium precatalysts, namely, palladium(II) acetate, palladium(0) nanoparticles encapsulated into poly(amidoamine) (PAMAM) dendrimers (Pd DENs), and palladium(II)-PAMAM complexes, in the Stille reaction between trichloro(phenyl)stannane and iodoarenes in water is compared. The reactivity of Pd DENs is similar or inferior to that of palladium(II) acetate, although th...

Hydrogen treatment of metallic materials is a promising area controlled hydrogen action on metals and alloys in order to impart special properties them. In this work, the changes mechanical palladium during single hydride transformations, which are initiated initially non-nakleped hydride, have been experimentally studied. Were investigated wire samples with purity 99.98 %, diameter 0.5 mm leng...

Laser-induced breakdown spectroscopy (LIBS) using conditional data analysis was applied to aqueous suspensions of palladium particles in the reformate water of palladium-based proton exchange membrane fuel cells. A significant amount of palladium was found in the water, indicating degradation of the fuel-cell cathode catalytic layers. The palladium particle-size detection limit was found to be ...

Bioelectrohydrogenesis using a microbial electrolysis cell (MEC) is promising technology for simultaneous hydrogen production and wastewater treatment which uses electrogenic microbes. Microbial activity at the anode evolution reaction cathode can be controlled by electrode–microbe interaction electron transfer. The selection of electrode material governed electrochemical oxidation substrates s...

An epitaxial film of the Pd-Fe alloy 116 nm thick with an iron concentration varying in depth from 2 at.% to 50 has been synthesized. experimental distribution profile was obtained as a result stepwise etching surface Ar + ions. Profiling shown that, annealing, impurity redistributed film, and layer L1 0 -phase constant formed near surface. After removal -phase, exhibits "easy-plane&am...