Spent automotive catalysts (SACs) are the most abundant secondary source of platinum group metals (PGMs), but recycling these materials is quite challenging. In present study, we assessed recovery Pt, Pd, and Rh from a SAC leachate solution using polymer inclusion membranes (PIMs) containing ionic liquid trioctyl(dodecyl) phosphonium chloride (P 88812 Cl). After pretreatment reducing agent, cou...

In this study, we present 84 transmission electron microscopy (TEM) images of human brainstem tissue from 11 cases late onset Parkinson’s disease (PD). The tissues were fixed, embedded, sectioned, and stained for TEM application. In addition, 14 autopsy specimens 1 case poliomyelitis infection as positive controls 8 other conditions negative controls. the PD there cytoplasmic inclusion b...

The permeance of Pd–Cu alloys containing 40, 53, 60, and 80 wt.% Pd has been determined over the 623–1173 K temperature range for H2 partial pressure differences as great as 2.6 MPa. Pure palladium and copper membranes were also evaluated. The Pd–Cu alloys exhibited predictable permeances that reflected the crystalline phase structures as shown in the binary phase diagram. Under conditions of f...

In the last years, hydrogen has been considered as a promising energy vector for the oncoming modification of the current energy sector, mainly based on fossil fuels. Hydrogen can be produced from water with no significant pollutant emissions but in the nearest future its production from different hydrocarbon raw materials by thermochemical processes seems to be more feasible. In any case, a mi...

The purpose of the article is to reveal role thickness layer lead-palladium alloy deposited on a copper-palladium membrane in processes cathodic injection and anodic extraction atomic hydrogen.The objects study were ~ 4 μm thick film electrodes obtained by magnetron sputtering target with composition 56 at. % Cu 44 Pd. studies carried out cyclic voltammetry double step anodic-cathodic chronoamp...

As an aid to the development of hydrogen separation membranes, we predict the temperature dependent phase diagrams using first principles calculations combined with thermodynamic principles. Our method models the phase diagram without empirical fitting parameters. By applying thermodynamic principles and solid solution models, temperature-dependent features of the Cu-Pd-S system can be explaine...