Effects of Synthesis Conditions on the PdCu Membrane Structure

Çetinyokuş S. , Doğan M. , Küçüktepe N.

Aksaray University Journal of Science and Engineering, cilt.3, sa.1, ss.29-42, 2019 (Hakemli Üniversite Dergisi)

  • Cilt numarası: 3 Konu: 1
  • Basım Tarihi: 2019
  • Doi Numarası: 10.29002/asujse.527882
  • Dergi Adı: Aksaray University Journal of Science and Engineering
  • Sayfa Sayıları: ss.29-42


In this study, it was aimed to plate PdCu alloy layer on porous glass supports by using electroless plating technique. It was also aimed to achieve coexistence of fcc (face-centered cubic) and bcc (body-centered cubic) phases on the alloy membrane layer. The fcc and bcc phases were seen together in the structures of the membranes synthesized at all three bath temperatures (30 °C, 40 °C and 50 °C), but, it was shown that the most suitable coating rate was achieved when the coating bath temperature was 40 °C. The appropriate composition of PdCu (74% Pd, 26% Cu) was achieved by following a synthesis procedure as follows: Coating in Pd bath three times for 60 minutes each followed by coating in Cu bath at the low formaldehyde concentration (5 mL/L) for 15 minutes. Hydrogen flux in the membrane was measured as 1.9x10-6 mol/cm2 s. After flux measurements, it was determined that the membrane structure changed and the fcc (200) structure, which did not previously exist in the structure, was formed.