Metallic membranes overview

This chapter will address the special considerations that apply to incorporating dense, hydrogen-permeable metal membranes into practical membrane modules for commercial and industrial use. It is organized to present a brief historical overview, a general review of hydrogen-permeable metal membranes, scale-up from laboratory test-and-evaluation membrane modules to commercial membrane modules, membrane module design and construction, and commercial applicability. 

Abstract The purpose of this chapter is to provide an overview of palladium-alloy metallic membranes (which are also used in the industry sector for the purification of hydrogen) for applications in the transport industry. Concepts are discussed in the first section. Main membrane materials and manufacturing processes are described in Section 18.2. 

Burba, R, Aster, B.,Nifant eva,T.,Shkinev, V., and Spivakov, B. Y. (1998). Membrane filtration studies of aquatic humic substances and their metal species A concise overview. Part 1. Analytical fractionation by means of sequential-stage ultrafiltration. Talanta 45, 977-988. 

In view of the above applications and of the fact that extensive literature is actually available on the CVD of aluminum, copper, and tungsten, processing of nickel films has been chosen in this chapter as an introduction to the actual challenges in the CVD of metals. This field is large, especially if it is considered to include deposition on substrates such as preforms, membranes or, particles. Because of space limitations no attempt has been made to provide a comprehensive overview. Although the choice of materials to be discussed was of necessity subjective, it is expected that the present approach will be useful for the investigation of different cases of metal CVD. 

Metal Complexes, Assembly of Metal Homeostasis, Intercellular Metal Homeostasis An Overview Metal Transport Through Membranes Metallochaperones, Chemistry of Transcription Factors... 

A glance through the table of contents provides an overview of the issues commonly encountered by chemists in the automotive industry. The author discusses fuels cells, lithium ion batteries, carbon nanotubes, and nickel metal hydride technology, all of which requires the technical knowledge of a chemist but crosses the lines of various disciplines. He covers future technology including items such as battery technology, fuel cell membranes, and environmentally friendly plastics such as nylons that use castor oil as a primary component. 

This overview chapter has the objective of introducing the SyiQ>oslum Series volume and the subject of liquid membrane technology. If membranes are viewed as semi-permeable phase separators, then the traditional concept of membranes as polymer films can be extended to Include liquids and liquid-swollen polymers. The addition of a mobile complexatlon agent to the membrane Is known as facilitated liquid membrane separation. Often, In liquid phase facilitated transport systems, the solute flux Is coupled to the opposite flux of another species. This process, common in metal ion recovery schemes, is known as coupled transport. 

Abstract A brief overview is given for a variety of sensors for the detection of chemical warfare agents (CWA) semiconductor thick- or thin-fihn gas sensors with oxide and noble metal additives, surface acoustic wave (SAW) sensors with a polymer membrane, and an ion mobility sensor (IMS). This is followed by discussion on the preparation methods for the sensing materials employed in semiconducting devices, and SAW sensors are introduced.The chapter closes with the results and observations from the examination and study of these devices. 

Phosphorus-Based Polymers From Synthesis to Applications aims at providing a broad overview of recent developments in the synthesis and applications of phosphorus-containing polymers. Over the last few years, more and more research papers have been published on this field. Polymerization of different kinds of phosphorus-based monomers using various methods has been carried out (meth)acrylates, (meth)acrylamides, vinylphosphonic acid, styrenic, and allylic monomers. The resulting phosphorus-based materials have found applications in different domains biomedical, complexation with metals, fire retardant additives, fuel cell membranes, etc. 

The application of permeable composite monolith membranes for the FT synthesis has been tested [122]. An overview of concepts associated with this reactor type has been presented (Figure 12.25) [123]. Novel uses of this concept have been advanced, and some experimental results have demonstrated the ability to operate at high CO conversion with metal FT catalysts by removal of the water produced during the synthesis [ 124] and the encapsulation of an FT catalyst by a zeolite membrane layer to effect upgrading reactions in the FT reactor [125]. The potential of this technique merits further studies to evaluate the ability to scale to a commercial level. 

Ahmad, A.L., Kusumastuti, A., Derek, C. J.C. Ooi, B.S. (2011) Emulsion liquid membrane for heavy metal removal An overview on emulsion stabilization and destabilization. Chemical Engineering Journal, 171, 870-882. 

The 27 chapters of this book describe separations of metal ions, anionic species, organic molecules, and gas mixtures that involve liquid membrane processes. Scientists and engineers in academic, governmental, and industrial laboratories in eight countries contributed to this volume. An overview chapter provides an introduction to the various liquid membrane configurations, transport mechanisms, and experimental techniques. A tribute chapter follows, summarizing the many contributions of Norman N. Li in the field of membrane science. The remainder of the book is divided into sections on theory and mechanism (6 chapters), carrier design, synthesis, and evaluation (6 chapters), and applications in... 

This chapter provides an overview of the materials used for manufacturing IPMC actuators and sensors. Recently, considerable effort has been put into investigating various electrode materials and ionic polymer membranes to increase the aetuation performance of IPMC and overcome some of the shortcomings to improve their reliability and stability. Various metallic and nonmetallic electrode materials with notable eleetroehemical and electromechanical properties have... 

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