Journal of Membrane Science, Vol.461, 139-145, 2014
Tubular macro-porous titanium membranes
We present tubular macroporous titanium membranes prepared via a dry wet spinning process from a polyethersulfone solution loaded with Ti particles (15 pm) and a subsequent sintering process at various sintering temperatures (1100-1500 degrees C) and sintering Limes (30-75 min). Outer diameter, wall thickness, average pore size and porosity of the Ti tubes were similar to 4.5 mm, similar to 350 mu m, 1.6-2.8 mu m and similar to 30%, respectively. These tubular membranes have excellent mechanical strength, electrical conductivity as well as nitrogen and water permeability. These properties, together with the inherent high corrosion and temperature resistance of titanium make them suitable for a wide range of membrane applications such as microfiltration, porous tubular electrodes for electrochemical membrane reactors; and gas-to-liquid diffuser. (c) 2014 Elsevier By. All rights reserved.
Keywords:Porous titanium hollow fibers;Dry wet spinning;Sintering;Titanium membrane;Tubular electrode