Hydrogen Permeability of Composite Pd–Au/Pd–Cu Membranes and Methods for Their Preparation

Thin Pd–40%Cu films were obtained via the classical melting and rolling method, magnetron sputtering, modified with nanostructured functional coatings to intensify process of hydrogen transportation. The by electrodeposition, according method obtaining palladium black “Pd–Au nanoflowers” spherical pentagonal particles, respectively. experiment results demonstrated highest catalytic activity (89.47 mA cm−2), good resistance CO poisoning long-term stability a structured coating. investigation developed membranes in transport processes temperature range 25–300 °C also high stable fluxes up 475.28 mmol s−1 m−2 (deposited membranes) 59.41 (dense metal membranes), which 1.5 higher, compared membrane materials classic niello. For all-metal membranes, increase flux was sevenfold, smooth made pure palladium, for deposited films, this difference manyfold. materials’ selectivity high, 4419. strategy modifying fundamentally new complex geometry can shed light on development fabrication durable highly selective palladium-based gas steam reformers.