Abstract
Hydrogen as a high-quality and clean energy carrier has attracted renewed and ever-increasing attention around the world in recent years, mainly due to developments in fuel cells and environmental pressures including climate change issues. Membrane technology is also important to the subsequent purification of hydrogen. For hydrogen production and purification, there are generally two classes of membranes both being inorganic: dense phase metal and metal alloys, and porous ceramic membranes. Microporous silica membranes as one of the promising candidates for hydrogen separation indicate the importance of these membrane applications in the high temperature systems. Therefore the main purpose of this chapter is to highlight recent advances about the silica membranes for hydrogen separation from both aspects of experimental and modeling studies. Moreover, future trends and current challenges about performance of silica membranes for hydrogen separation will be discussed.
Published Version
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