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Transport of Fluids in Nanoporous Materials

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ISBN: 9783038975298 9783038975304 Year: Pages: 260 DOI: 10.3390/books978-3-03897-530-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General) --- General and Civil Engineering --- Materials --- Chemical Engineering
Added to DOAB on : 2019-01-25 10:53:11
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Fluid transport in narrow pores is central to the design and optimization of nanoporous materials in industrial applications, such as catalysis, nanofluids, electrochemical batteries, and membrane separation. However, due to the strong potential field in nanopores, conventional models and methods have become inadequate for predicting the transport behavior of molecules confined in the pore space. In addition, the inherent complexity of the pore structure in nanomaterials requires consideration of local or nanoscale transport at the single pore level, and averaging over the macroscale, which further impedes the application and validation of the formulated mechanical models. To solve the problem of fluid transport in narrow nanopores beyond Knudsen limits, experimental characterizations should be combined to molecular simulations in order to probe the fluid movement under realistic conditions. This book provides comprehensive perspectives on the current research in the investigation of fluid transport processes in nanomaterials. The articles from leading scholars in this field are conveniently arranged according to three categories based on the approaches used in the papers: modeling and simulation, nanomaterial manipulation and characterization, and practical application. The 14 contributions not only demonstrate the importance of fluid behavior in different applications but also address the main theories and simulations to model the fluid transport behavior in nanoporous materials. This collection shows that “fluid transport in nanomaterials” remains a versatile and vibrant topic in terms of both theories and applications.

Thin film MOFs (SURMOFs) for application in gas separation

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ISBN: 9783731508830 Year: Pages: XIV, 153 p. DOI: 10.5445/KSP/1000088874 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Biology
Added to DOAB on : 2019-07-30 20:01:59
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In this work, the deposition of ZIF-8 surface-anchored metal-organic framework (SURMOF) films was systematically studied. A proper characterization and optimization of the synthesized films was performed and their separation performance was determined. Furthermore, a general description of the system was achieved using the Maxwell-Stefan surface diffusion model.

Phasenstabilisierung und Oberflächenaktivierung von Sauerstoffseparationsmembranen aus dotiertem Ba$_{0,5}$Sr$_{0,5}$Co$_{0,8}$Fe$_{0,2}$O$_{3-?}$

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Book Series: Schriften des Instituts für Angewandte Materialien - Werkstoffe der Elektrotechnik, Karlsruher Institut für Technologie / Institut für Angewandte Materialien - Werkstoffe der Elektrotechnik ISSN: 23658029 ISBN: 9783731508472 Year: Volume: 34 Pages: IV, 246 p. DOI: 10.5445/KSP/1000086074 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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Ba$_{0,5}$Sr$_{0,5}$Co$_{0,8}$Fe$_{0,2}$O$_{3-?}$ (BSCF) is the most promising material für energy efficient oxygen separation membranes. But its electrical and transport properties are unstable at temperatures below 840 °C. Reasons are structural changes to secondary phases in the cubic lattice. By doping with Y, Ti and Nb the cubic lattice shall be stabilized. Goal of this work are analyses of the dopant’s influences on BSCF’s electrochemical properties.

Novel Membrane Technologies for Traditional Industrial Processes

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ISBN: 9783038977902 9783038977919 Year: Pages: 196 DOI: 10.3390/books978-3-03897-791-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-08-28 11:21:27
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Through reading this book, you will obtain information on: (1) the main problems in air separation and natural gas treatment by membrane separation and how to solve them; (2) processes involving membranes and new membrane materials for the more economical utilization of bio-resources; (3) energy selection and membrane development for more expedient and stable harnessing of the natural osmosis phenomenon; (4) many excellent contributions about catalytic membrane bioreactors; (5) how to fine-tune the arrangement of aquaporins (i.e., proteins identified in biological cells) to achieve superior water treatment efficiency.

Mixed Matrix Membranes

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ISBN: 9783039219766 9783039219773 Year: Pages: 146 DOI: 10.3390/books978-3-03921-977-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2020-01-07 09:08:26
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Mixed matrix membranes (MMMs) have attracted a large amount of interest in research laboratories worldwide in recent decades, motivated by the gap between a growing interest in developing novel mixed matrix membranes by various research groups and the lack of large-scale implementation. This Special Issue contains six publications dealing with the current opportunities and challenges of mixed matrix membranes development and applications to solve environmental and health challenges of the society of 21st century.

Ring-Fencing in Europe

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Book Series: Studien zum Bank-, Börsen- und Kapitalmarktrecht ISBN: 9783748903451 Year: Volume: 75 Pages: 342 DOI: https://doi.org/10.5771/9783748903451 Language: English
Publisher: Nomos Verlagsgesellschaft mbH & Co. KG
Subject: Business and Management --- Law
Added to DOAB on : 2019-12-17 09:44:55
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Bankenstrukturreformen, die eine Trennung von Investment- und Retailbanking vorsehen und die zusammenfassend als „Ring-Fencing“ bezeichnet werden können, werden seit der Finanzkrise kontrovers diskutiert. Die Arbeit befasst sich mit den rechtlichen Entwicklungen in der Europäischen Union sowie mit Regelungen im Vereinigten Königreich, Deutschland und der Schweiz.Die Arbeit trägt zur Abgrenzung und der Systematik von Ring-Fencing-Regelungen bei und zeichnet ein umfassendes Bild der gegenwärtigen Entwicklungen sowie möglicher Perspektiven auf Ebene des Unionsrechts. Darüber hinaus untersucht sie strukturelle Unterschiede zwischen bestehenden nationalen Regelungen an Europas drei wichtigsten Finanzplätzen und geht dabei insbesondere auf die einzigartigen aber bisher international wenig beachteten Schweizerischen Ring-Fencing-Bestrebungen ein.Die Arbeit wurde unter anderem mit dem Österreichischen Preis für Insolvenzrecht ausgezeichnet.Bank structural reforms that stipulate the separation of retail and investment banking and that can collectively be referred to as ‘ring-fencing’ have been among the most controversial regulations since the financial crisis. This study explores legal developments in the European Union in this regard as well as national legislation in the United Kingdom, Germany and Switzerland.The study contributes to the terminology and classification of existing and future ring-fencing initiatives and paints a comprehensive picture of current developments and prospects on an EU level in this respect. It furthermore highlights structural differences in the national approaches of Europe’s three most important financial centres, and casts light on Switzerland’s unique ring-fencing efforts that have been barely recognised internationally.This study was recognised with the Austrian Award for Insolvency Law.

Pd-based Membranes. Overview and Perspectives

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ISBN: 9783038977025 Year: Pages: 190 DOI: 10.3390/books978-3-03897-703-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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Palladium (Pd)-based membranes have received a great deal of attention from both academia and industry thanks to their ability to selectively separate hydrogen from gas streams. The integration of such membranes with appropriate catalysts in membrane reactors allows for hydrogen production with CO2 capture that can be applied in smaller bioenergy or combined heat and power (CHP) plants, as well as in large-scale power plants. Pd-based membranes are therefore regarded as a Key Enabling Technology (KET) to facilitate the transition towards a knowledge-based, low-carbon, and resource-efficient economy. This Special Issue of the journal Membranes on “Pd-based Membranes: Overview and Perspectives” contains nine peer-reviewed articles. Topics include manufacturing techniques, understanding of material phenomena, module and reactor design, novel applications, and demonstration efforts and industrial exploitation.

Membrane and Membrane Reactors Operations in Chemical Engineering

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ISBN: 9783039210220 9783039210237 Year: Pages: 154 DOI: 10.3390/books978-3-03921-023-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2019-06-26 10:09:00
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This Special Issue is aimed at highlighting the potentialities of membrane and membrane reactor operations in various sectors of chemical engineering, based on application of the process intensification strategy. In all of the contributions, the principles of process intensification were pursued during the adoption of membrane technology, demonstrating how it may lead to the development of redesigned processes that are more compact and efficient while also being more environmental friendly, energy saving, and amenable to integration with other green processes. This Special Issue comprises a number of experimental and theoretical studies dealing with the application of membrane and membrane reactor technology in various scientific fields of chemical engineering, such as membrane distillation for wastewater treatment, hydrogen production from reforming reactions via inorganic membrane and membrane photoassisted reactors, membrane desalination, gas/liquid phase membrane separation of CO2, and membrane filtration for the recovery of antioxidants from agricultural byproducts, contributing to valorization of the potentialities of membrane operations.

Carbon Capture and Storage

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ISBN: 9783039213993 9783039214006 Year: Pages: 178 DOI: 10.3390/books978-3-03921-400-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Climate change is one of the main threats to modern society. This phenomenon is associated with an increase in greenhouse gas (GHGs, mainly carbon dioxide—CO2) emissions due to anthropogenic activities. The main causes are the burning of fossil fuels and land use change (deforestation). Climate change impacts are associated with risks to basic needs (health, food security, and clean water), as well as risks to development (jobs, economic growth, and the cost of living). The processes involving CO2 capture and storage are gaining attention in the scientific community as an alternative for decreasing CO2 emissions, reducing its concentration in ambient air. The carbon capture and storage (CCS) methodologies comprise three steps: CO2 capture, CO2 transportation, and CO2 storage. Despite the high research activity within this topic, several technological, economic, and environmental issues as well as safety problems remain to be solved, such as the following needs: increase of CO2 capture efficiency, reduction of process costs, and verification of the environmental sustainability of CO2 storage.

Superhydrophobic Coatings for Corrosion and Tribology

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ISBN: 9783039217847 9783039217854 Year: Pages: 166 DOI: 10.3390/books978-3-03921-785-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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Superhydrophobic surfaces, with a water contact angle >150°, have attracted both academic and industrial interest due to their wide range of applications, such as water proofing, anti-fogging, antifouling, anti-icing, fluidic drag reduction and anti-corrosion. Currently the majority of superhydrophobic coatings are created using organic chemicals with low surface energy. However, the lack of mechanical strength and heat resistance prevents the use of these coatings in harsh environments. Quality superhydrophobic coatings developed using inorganic materials are therefore highly sought after. Ceramics are of particular interest due to their high mechanical strength, heat and corrosion resistance. Such superhydrophobic coatings have recently been successfully fabricated using a variety of ceramics and different approaches, and have shown the improved wear and tribocorrosion resistance properties. This Special Issue focuses on the recent developments in the fabrication of superhydrophobic coatings and their robustness against corrosion and wear resistance, but the original work on other properties of superhydrophobic coatings are also welcome. In particular, the topics of interest include, but are not limited to: Robust superhydrophobic coatings; Coatings with super-wettability in multifunctional applications; Wetting effects on corrosion and tribology; Hierarchical Coating for wetting and modelling.

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