Results 251 to 260 of about 225,905 (303)
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2006
Preface. List of Contributors. 1 Dense Ceramic Membranes for Hydrogen Separation (Truls Norby and Reidar Haugsrud). 1.1 Introduction. 1.2 Applications and Principles of Operation. 1.2.1 Simple Cases. 1.2.2 Examples of More Complex Applications. 1.3 Defect Chemistry of Dense Hydrogen-permeable Ceramics. 1.3.1 Materials Classes. 1.3.2 Neutral and Ionized
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Preface. List of Contributors. 1 Dense Ceramic Membranes for Hydrogen Separation (Truls Norby and Reidar Haugsrud). 1.1 Introduction. 1.2 Applications and Principles of Operation. 1.2.1 Simple Cases. 1.2.2 Examples of More Complex Applications. 1.3 Defect Chemistry of Dense Hydrogen-permeable Ceramics. 1.3.1 Materials Classes. 1.3.2 Neutral and Ionized
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Catalysis Reviews, 1991
Abstract Simply stated, a membrane is a barrier which is capable of redistributing components in a fluid stream through a driving force such as the difference in pressure, concentration, or electrical potential. When a concentration or electrical potential gradient provides the necessary driving force, this barrier separation process is called dialysis
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Abstract Simply stated, a membrane is a barrier which is capable of redistributing components in a fluid stream through a driving force such as the difference in pressure, concentration, or electrical potential. When a concentration or electrical potential gradient provides the necessary driving force, this barrier separation process is called dialysis
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Hybrid organic-inorganic membranes
Separation and Purification Technology, 2001The gas separation performance of a series of hybrid polyimide-silica membranes has been compared to Robeson's upper bound for various gas pairs. Exceptional gas separation was achieved primarily with crosslinked polyimides and with hybrid systems subjected to annealing treatments at elevated temperatures. The hybrid materials were prepared by carrying
Chris Cornelius +2 more
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2008
Publisher Summary This chapter discusses organic–inorganic membranes. The use of organic–inorganic materials for membranes is very attractive as it provides the possibility of achieving synergetic effects on permeability and selectivity, introducing new functionalizations, and improving mechanical and thermal stability.
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Publisher Summary This chapter discusses organic–inorganic membranes. The use of organic–inorganic materials for membranes is very attractive as it provides the possibility of achieving synergetic effects on permeability and selectivity, introducing new functionalizations, and improving mechanical and thermal stability.
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2009
Membrane forming properties of two natural, microporous clay minerals, montmorillonite and sepiolite, were investigated. The research presented in this work was exploratory in nature and had two distinct parts: montmorillonite as a gas separation membrane material and sepiolite as an ultrafiltration membrane material.
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Membrane forming properties of two natural, microporous clay minerals, montmorillonite and sepiolite, were investigated. The research presented in this work was exploratory in nature and had two distinct parts: montmorillonite as a gas separation membrane material and sepiolite as an ultrafiltration membrane material.
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Synthesis of Inorganic Membranes
1991The aim of this introductory section is twofold. In the first place, the large variety of different synthesis methods and techniques will be placed against the background of membrane types and structures. These will be briefly summarized with focus on their relation with synthesis aspects.
A. J. Burggraaf, K. Keizer
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The heart of a membrane process, simple or integrated, is the membrane itself, which represents man’s attempts to emulate the perfection of the processes active in biological membranes with the ambition of overcoming their limits, to use them in processes that contribute to improve everyday life.
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