Diseno Y Evaluacion De Un Reactor Para La Produccion De Hidrogeno Por Fotocatalisis Heterogenea A Partir De Soluciones Acuosas Alcoholicas

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Diseño y evaluación de un reactor para la producción de hidrogeno por fotocatalisis heterogenea a partir de soluciones acuosas alcohólicas

Download Diseño y evaluación de un reactor para la producción de hidrogeno por fotocatalisis heterogenea a partir de soluciones acuosas alcohólicas PDF Online Free

Author : Francis Viviana García Patiño
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis Diseño y evaluación de un reactor para la producción de hidrogeno por fotocatalisis heterogenea a partir de soluciones acuosas alcohólicas by : Francis Viviana García Patiño

Download or read book Diseño y evaluación de un reactor para la producción de hidrogeno por fotocatalisis heterogenea a partir de soluciones acuosas alcohólicas written by Francis Viviana García Patiño and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resumen: La crisis provocada por el cambio climático hace necesario una búsqueda de métodos racionales para la transformación y uso de la energía. Para ello se ha recurrido al desarrollo de las denominadas energías renovables; energías que se obtienen de fuentes naturales inagotables, ya sea por la inmensa cantidad de energía que contienen o porque son capaces de regenerarse por medios naturales. La energía eólica, geotérmica, marítima y la solar son ejemplos de estas energías. La fotocatálisis como proceso fisicoquímico hace referencia a la reacción catalítica por absorción de luz solar o artificial. Esta técnica ha sido de gran interés durante años por ser considerada una técnica ambientalmente segura que presenta altos porcentajes de eficiencia. El hidrógeno tiene el potencial de poner fin a la dependencia que el mundo tiene del petróleo. El Hidrógeno por sus propiedades y versatilidad es el vector energético con mayor prospecto a sustituir los combustibles fósiles. En el presente trabajo se describe el diseño de un reactor con el fin de obtener hidrogeno como energía alternativa a partir de una energía renovable como la luz solar. Además de la elaboración de un electrodo de dióxido de titanio para ser usado como fotocatalizador en la celda fotoelectroquimica. Se estudia la producción de hidrogeno indirectamente por métodos volúmetricos, cromatograficos y por la medición de corriente en el sistema, y se determina condiciones eficientes para la producción de hidrogeno.

Estudio de la producción de hidrógeno mediante fotocatálisis heterogénea

Author : Katherine Villa Gómez
Publisher :
ISBN 13 : 9788449039799
Total Pages : 186 pages
Book Rating : 4.0/5 (397 download)

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Book Synopsis Estudio de la producción de hidrógeno mediante fotocatálisis heterogénea by : Katherine Villa Gómez

Download or read book Estudio de la producción de hidrógeno mediante fotocatálisis heterogénea written by Katherine Villa Gómez and published by . This book was released on 2013 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: En la presente tesis doctoral se ha estudiado la producción de hidrógeno por fotocatálisis heterogénea a partir de soluciones acuosas de compuestos orgánicos con el fin de simultanear en un mismo proceso la producción de energía y la degradación de dichos contaminantes orgánicos. La importancia de este tipo de tecnología es que permite, a partir de recursos renovables como la luz solar y la biomasa, obtener energías limpias y a su vez disminuir el grado de contaminación de las aguas empleadas. En este sentido, se han examinado los siguientes sistemas fotocatalíticos con vistas a mejorar la eficiencia fotocatalítica a nivel de laboratorio: TiO2 dopado con nitrógeno, un composite formado por CdS y WO3 y por último, un composite de CdS y ZnS. Posteriormente, las configuraciones que han mostrado una mejor eficiencia fueron probadas a escala de planta piloto. Asimismo, se han utilizado distintas técnicas de caracterización para determinar las propiedades físico-químicas de los materiales preparados, tales como análisis elemental, estructural, textural, óptico, superficial y morfológico. Con la información obtenida en los estudios de caracterización se ha intentado establecer una correlación entre las propiedades de los catalizadores y la actividad fotocatalítica observada en los experimentos de generación de H2. En general, se evidenció que fue posible llevar a cabo, simultáneamente, la generación fotocatalítica de H2 y la mineralización parcial de ácido fórmico y agua residual municipal real. La mayor eficiencia fotocatalítica, bajo irradiación visible, se obtuvo con el composite de Pt/(CdS/ZnS) (composite obtenido a partir de la precipitación de CdS sobre partículas de ZnS con posterior platinización) para las siguientes condiciones experimentales optimizadas: razón molar de CdS:ZnS 1:1, temperatura de sinterización 700 ̊C, 3 g·L-1 de catalizador, ácido fórmico 0,05 M, y pH 3,75.

Soil and Sediment Remediation

Author : Piet Lens
Publisher : IWA Publishing
ISBN 13 : 1843391007
Total Pages : 545 pages
Book Rating : 4.8/5 (433 download)

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Book Synopsis Soil and Sediment Remediation by : Piet Lens

Download or read book Soil and Sediment Remediation written by Piet Lens and published by IWA Publishing. This book was released on 2005-09-30 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.

Emerging Trends in Nanotechnology

Author : Zishan Husain Khan
Publisher : Springer Nature
ISBN 13 : 9811599041
Total Pages : 382 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Emerging Trends in Nanotechnology by : Zishan Husain Khan

Download or read book Emerging Trends in Nanotechnology written by Zishan Husain Khan and published by Springer Nature. This book was released on 2021-02-21 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses new trends in nanotechnology. It covers a wide range of topics starting from applications of nanomaterials in perovskite solar cells, pharmacy, and dentistry to self-assembled growth of GaN nanostructures on flexible metal foils by laser molecular beam epitaxy. It also includes other interesting topics such as advancement in carbon nanotubes; processing techniques, purification and industrial applications, metal di-chalcogenides for waste water treatment and recent advancement in nanostructured-based electrochemical genosensors for pathogen detection and many more. The book will be of great interest to researchers, professionals and students working in the areas of nanomaterials and nanotechnology.

The Dairy Industry in Mexico

Author : United States. Office of Foreign Agricultural Relations
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.M/5 ( download)

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Book Synopsis The Dairy Industry in Mexico by : United States. Office of Foreign Agricultural Relations

Download or read book The Dairy Industry in Mexico written by United States. Office of Foreign Agricultural Relations and published by . This book was released on 1952 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Zeolites and Metal-organic Frameworks

Author : Vincent Blay
Publisher :
ISBN 13 : 9789462985568
Total Pages : 0 pages
Book Rating : 4.9/5 (855 download)

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Book Synopsis Zeolites and Metal-organic Frameworks by : Vincent Blay

Download or read book Zeolites and Metal-organic Frameworks written by Vincent Blay and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines Zeolites and Metal-Organic Frameworks. It explains the different synthetic routes available to prepare these materials, and examines how they are used by science and industry.

Process Analytical Chemistry

Author : F. McLennan
Publisher : Springer Science & Business Media
ISBN 13 : 940110591X
Total Pages : 391 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Process Analytical Chemistry by : F. McLennan

Download or read book Process Analytical Chemistry written by F. McLennan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Process analytical chemistry (PAC) can be defined as the technology of obtaining quantitative and qualitative information about a chemical process in order to control or optimise its performance. This highly practical book provides an up-to-date introduction to the field with a special emphasis placed on industrial processes. Edited by representatives from one of the world's leading chemical companies and centres of excellence for research into the subject, the book is written by a transatlantic team of authors who provide a global perspective.

Engineering Solutions for CO2 Conversion

Author : Tomas Ramirez Reina
Publisher : John Wiley & Sons
ISBN 13 : 3527346392
Total Pages : 498 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Engineering Solutions for CO2 Conversion by : Tomas Ramirez Reina

Download or read book Engineering Solutions for CO2 Conversion written by Tomas Ramirez Reina and published by John Wiley & Sons. This book was released on 2021-07-19 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide that offers a review of the current technologies that tackle CO2 emissions The race to reduce CO2 emissions continues to be an urgent global challenge. "Engineering Solutions for CO2 Conversion" offers a thorough guide to the most current technologies designed to mitigate CO2 emissions ranging from CO2 capture to CO2 utilization approaches. With contributions from an international panel representing a wide range of expertise, this book contains a multidisciplinary toolkit that covers the myriad aspects of CO2 conversion strategies. Comprehensive in scope, it explores the chemical, physical, engineering and economical facets of CO2 conversion. "Engineering Solutions for CO2 Conversion" explores a broad range of topics including linking CFD and process simulations, membranes technologies for efficient CO2 capture-conversion, biogas sweetening technologies, plasma-assisted conversion of CO2, and much more. This important resource: * Addresses a pressing concern of global environmental damage, caused by the greenhouse gases emissions from fossil fuels * Contains a review of the most current developments on the various aspects of CO2 capture and utilization strategies * Incldues information on chemical, physical, engineering and economical facets of CO2 capture and utilization * Offers in-depth insight into materials design, processing characterization, and computer modeling with respect to CO2 capture and conversion Written for catalytic chemists, electrochemists, process engineers, chemical engineers, chemists in industry, photochemists, environmental chemists, theoretical chemists, environmental officers, "Engineering Solutions for CO2 Conversion" provides the most current and expert information on the many aspects and challenges of CO2 conversion.

Clays in Natural and Engineered Barriers for Radioactive Waste Confinement

Author : S. Norris
Publisher : Geological Society of London
ISBN 13 : 186239654X
Total Pages : 618 pages
Book Rating : 4.8/5 (623 download)

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Book Synopsis Clays in Natural and Engineered Barriers for Radioactive Waste Confinement by : S. Norris

Download or read book Clays in Natural and Engineered Barriers for Radioactive Waste Confinement written by S. Norris and published by Geological Society of London. This book was released on 2014-10-24 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Publication contains 43 scientific studies presented at the 5th conference on ‘Clays in natural and engineered barriers for radioactive waste confinement’ held in Montpellier, France in 2012. The conference and this resulting volume cover all the aspects of clay characterization and behaviour considered at various temporal and spatial scales relevant to the confinement of radionuclides in clay, from basic phenomenological process descriptions to the global understanding of performance and safety at repository and geological scales. Special emphasis has been given to the modelling of processes occurring at the mineralogical level within the clay barriers. The papers in this Special Publication consider research into argillaceous media under the following topic areas: large-scale geological characterization; clay-based concept/large-scale experiments; hydrodynamical modelling; geochemistry; geomechanics; mass transfer/gas transfer; mass transfer mechanisms. The collection of different topics presented in this Special Publication demonstrates the diversity of geological repository research.

Engineered Ceramics

Author : Tatsuki Ohji
Publisher : John Wiley & Sons
ISBN 13 : 1119100402
Total Pages : 538 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis Engineered Ceramics by : Tatsuki Ohji

Download or read book Engineered Ceramics written by Tatsuki Ohji and published by John Wiley & Sons. This book was released on 2016-02-01 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book project, all the American Ceramic Society's Engineering Ceramics Division Mueller and Bridge Building Award Winners, the ICACC Plenary Speakers and the past Engineering Ceramics Division Chairs have been invited to write book chapters on a topic that is compatible with their technical interests and consistent with the scope of the book, which is to focus on the current status and future prospects of various technical topics related to engineering ceramics, advanced ceramics and composite materials. Topics include: Mechanical Behavior and Performance of Ceramics & Composites Non-Destructive Evaluation and Mechanical Testing of Engineering Ceramics Brittle and Composite Material Design Modern Fracture Mechanics of Ceramics Thermal/Environmental Barrier Coatings Advanced Ceramic Coatings for Functional Applications Advanced Ceramic Joining Technologies Ceramics for Machining, Friction, Wear, and Other Tribological Applications Ceramic Composites for High-Temperature Aerospace Structures and Propulsion Systems Thermal Protection Materials: From Retrospect to Foresight Carbon/Carbon Composites Ceramic-Matrix Composites for Lightweight Construction Ultra High-Temperature Ceramics (UHTC) Nanolaminated Ternary Carbides and Nitrides (MAX Phases) Ceramics for Heat Engine and Other Energy Related Applications Solid Oxide Fuel Cells (SOFC) Armor Ceramics Next Generation Bioceramics Ceramics for Innovative Energy and Storage Systems Designing Ceramics for Electrochemical Energy Storage Devices Nanostructured Materials and Nanotechnology Advanced Ceramic Processing and Manufacturing Technologies Engineering Porous Ceramics Thermal Management Materials and Technologies Geopolymers Advanced Ceramic Sensor Technology Advanced Ceramics and Composites for Nuclear and Fusion Applications Advanced Ceramic Technologies for Rechargeable Batteries

Photocatalysis

Author : Dionysios D Dionysiou
Publisher : Royal Society of Chemistry
ISBN 13 : 1782627103
Total Pages : 395 pages
Book Rating : 4.7/5 (826 download)

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Book Synopsis Photocatalysis by : Dionysios D Dionysiou

Download or read book Photocatalysis written by Dionysios D Dionysiou and published by Royal Society of Chemistry. This book was released on 2016-03-30 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: From environmental remediation to alternative fuels, this book explores the numerous important applications of photocatalysis. The book covers topics such as the photocatalytic processes in the treatment of water and air; the fundamentals of solar photocatalysis; the challenges involved in developing self-cleaning photocatalytic materials; photocatalytic hydrogen generation; photocatalysts in the synthesis of chemicals; and photocatalysis in food packaging and biomedical and medical applications. The book also critically discusses concepts for the future of photocatalysis, providing a fascinating insight for researchers. Together with Photocatalysis: Fundamentals and Perspectives, these volumes provide a complete overview to photocatalysis.

Catalysis by Precious Metals, Past and Future

Author : Marcela Martinez Tejada
Publisher : MDPI
ISBN 13 : 3039287222
Total Pages : 204 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Catalysis by Precious Metals, Past and Future by : Marcela Martinez Tejada

Download or read book Catalysis by Precious Metals, Past and Future written by Marcela Martinez Tejada and published by MDPI. This book was released on 2020-04-15 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future of the precious metals is shiny and resistant. Although expensive and potentially replaceable by transition metal catalysts, precious metal implementation in research and industry shows potential. These metals catalyze oxidation and hydrogenation due to their dissociative behavior toward hydrogen and oxygen, dehydrogenation, isomerization, and aromatization, etc. The precious metal catalysts, especially platinum-based catalysts, are involved in a variety of industrial processes. Examples include Pt–Rh gauze for nitric acid production, the Pt/Al2O3 catalyst for cyclohexane and propylene production, and Pd/Al2O3 catalysts for petrochemical hydropurification reactions, etc. A quick search of the number of published articles in the last five years containing a combination of corresponding “metals” (Pt, Pd, Ru, Rh and Au) and “catalysts” as keywords indicates the importance of the Pt catalysts, but also the continuous increase in the contribution of Pd and Au. This Special Issue reveals the importance of precious metals in catalysis and focuses on mono- and bi-metallic formulations of any supported precious metals and their promotional catalytic effect of other transition metals. The application of precious metals in diverse reactions, either homogeneous or heterogeneous, and studies of the preparation, characterization, and applications of the supported precious metal catalysts, are presented.

Renewable Energy and the Environment

Author : Md. Rabiul Islam
Publisher : Springer
ISBN 13 : 9811072876
Total Pages : 256 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Renewable Energy and the Environment by : Md. Rabiul Islam

Download or read book Renewable Energy and the Environment written by Md. Rabiul Islam and published by Springer. This book was released on 2017-12-16 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses a number of important topical technical and non-technical issues related to the global energy, environment and socio-economic developments for professionals and students directly and indirectly involved in the relevant fields. It shows how renewable energy offers solutions to mitigate energy demand and helps achieve a clean environment, and also addresses the lack of a clear vision in the development of technology and a policy to reach the mandatory global renewable energy targets to reduce greenhouse gas emissions and stimulate socio-economic development. The book is structured in such a way that it provides a consistent compilation of fundamental theories, a compendium of current research and development activities as well as new directions to overcome critical limitations; future technologies for power grids and their control, stability and reliability are also presented.

World Conference on Carbon (Carbon 2017)

Author :
Publisher :
ISBN 13 : 9781510874671
Total Pages : 217 pages
Book Rating : 4.8/5 (746 download)

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Book Synopsis World Conference on Carbon (Carbon 2017) by :

Download or read book World Conference on Carbon (Carbon 2017) written by and published by . This book was released on 2017 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microbial Energy Conversion

Author : Zhenhong Yuan
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 311042486X
Total Pages : 536 pages
Book Rating : 4.1/5 (14 download)

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Book Synopsis Microbial Energy Conversion by : Zhenhong Yuan

Download or read book Microbial Energy Conversion written by Zhenhong Yuan and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-05-22 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an overview on various microorganisms and their industrialization in energy conversion, such as ethanol fermentation, butanol fermentation, biogas fermentation and fossil energy conversion. It also covers microbial oil production, hydrogen production and electricity generation. The content is up to date and suits well for both researchers and industrial audiences.

Reactivity of Solids

Author : International Union of Pure and Applied Chemistry
Publisher : Wiley-Blackwell
ISBN 13 : 9780865426870
Total Pages : 291 pages
Book Rating : 4.4/5 (268 download)

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Book Synopsis Reactivity of Solids by : International Union of Pure and Applied Chemistry

Download or read book Reactivity of Solids written by International Union of Pure and Applied Chemistry and published by Wiley-Blackwell. This book was released on 1996 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: (1E 1976) Discus

Nanostructured Materials

Author : Gan-Moog Chow
Publisher : Springer Science & Business Media
ISBN 13 : 9401150028
Total Pages : 461 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Nanostructured Materials by : Gan-Moog Chow

Download or read book Nanostructured Materials written by Gan-Moog Chow and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: A critical, up to date, tutorial review and discussion of the science and technology of nanostructured metallic and ceramic materials. The focus is on the synthesis and processing of nanoparticles, the assembly and stability of nanostructures, characterization and properties, and applications. There is a growing interest in the processing of nanoparticles into consolidated bulk materials and coatings. The metastability of nanoparticles may lead to undesirable grain growth during thermally assisted consolidation or other processing routes, and the retention of nanostructures in a processed part or component continues to attract a great deal of attention. Current activity is concentrating on the deposition of nanostructured coatings using established thermal spray technology and wet chemistry methods. Naturally existing or artificially synthesized templates with unique structures and morphologies have been used to fabricate nanostructured materials with the same structural and morphological characteristics as the templates. Recent advances in characterization techniques have provided information on the structure, the surface and bulk chemistry of nanoparticles, and the structures and chemistry of exposed and buried surfaces of coatings. Contributors are drawn from Canada, France, UK, USA, Belarus, Russia and Ukraine.