Palladium-doped silica membrane synthesis on α-alumina support modified by γ-alumina interlayers
Publish place: 4th International Conference on Recent innovations in chemistry and chemical engineering
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
View: 540
This Paper With 6 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
CHCONF04_358
تاریخ نمایه سازی: 8 آذر 1396
Abstract:
In this work palladium doped silica membranes were synthesized on α-alumina supports whichwere modified by coating γ-alumina layers on their surface. Two different procedures were carried out forsynthesizing palladium-doped silica membranes. In the first case four layers of silica-palladium sol werecoated (M1), and the latter, two layers of silica sol were coated followed by coating of two layers of silicapalladiumsol (M2). XRD spectra confirmed palladium presence within the structure of these membranes.The sealed membranes were tested for single gas permeance of H2, and N2 at room temperature, 100 °C,and 550 °C. Gas permeation tests revealed that no activated transport occurred for M1, as its H2, and N2permeances, and H2/N2 selectivity decreased with increasing temperature. On the contrary, M2 exhibiteddifferent behavior. In this case, H2 permeance increased and N2 permeance decreased with temperature,leading to the formation of activated molecular sieve silica membrane layer on the support.
Keywords:
Authors
Masoud Majidi Beiragh
Nanostructure Material Research Center, Sahand University of Technology, Tabriz, Iran
Ahmad Gholizade Atani
Nanostructure Material Research Center, Sahand University of Technology, Tabriz, Iran
Nesa Rafia
Nanostructure Material Research Center, Sahand University of Technology, Tabriz, Iran
Ali Akbar Babaluo
Nanostructure Material Research Center, Sahand University of Technology, Tabriz, Iran