Design, Synthesis, and Characterization of Transition Metal Oxide Nanomaterials as Efficient Sorbents and Multifunctional Catalysts for Oxidation, Dehydrogenative Coupling, and Desulfurization Reactions
Design, Synthesis, and Characterization of Transition Metal Oxide Nanomaterials as Efficient Sorbents and Multifunctional Catalysts for Oxidation, Dehydrogenative Coupling, and Desulfurization Reactions

Author: Chandima Weerakkody

Publisher:

Published: 2018

Total Pages:

ISBN-13:

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The research work presented here is focused on nanotechnological synthetic approaches for transition metal oxide nanomaterials and their applications in heterogeneous catalysis and adsorptive desulfurization reactions. Here, we discuss the controllable synthesis of functional nanomaterials and investigation of their structure-activity relationship in multiphase catalytic and sorption reactions. Among transition metal oxides, Co3O4 is well known for the presence of mobile oxygen, and thus is more reactive towards oxidation reactions. Aerobic oxidation under additive free conditions is highly desirable in organic synthesis reactions, from the viewpoint of green and sustainable chemistry. We demonstrate the activity enhancement of mesoporous cobalt oxide materials by substitutional doping of molybdenum ions. We discuss the surface chemistry in the production of active metal oxide nanoparticles and effect of lattice deformation on creating surface defects. High conversion and selectivity was achieved by controlling the surface area, Lewis acidity, and oxygen vacancy density of the solid catalyst in the liquid phase dehydrogenative coupling reactions. Synthesis of high surface area mesoporous cobalt molybdenum mixed metal oxide materials was accomplished using surfactant assisted inverse micelle method. The cobalt molybdenum oxide materials were investigated as a efficient desulfurization sorbent in a fixed bed reactor at low temperatures ( C).

Design, Synthesis and Characterization of Transition Metal Oxide/sulfide-based Catalysts for Environmental and Energy Applications
Design, Synthesis and Characterization of Transition Metal Oxide/sulfide-based Catalysts for Environmental and Energy Applications

Author: Ran Miao

Publisher:

Published: 2017

Total Pages:

ISBN-13:

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In this thesis, I will focus on the synthesis of transition metal oxide/sulfide-based composite materials for different types of environmental and sustainable energy applications under ambient conditions. Controlled synthesis of these catalysts with unique crystalline structures, physical, and chemical properties will be carried out to achieve an improved catalytic activity. The correlations between the material structure and catalytic activity will be investigated by various characterization techniques. Finally, the catalytic activities for the resulting materials will be evaluated for environmental friendly photocatalytic dye degradation and electrochemical water splitting reaction, respectively.

Design, Synthesis and Characterization of Advanced Nanomaterials for Environmental and Energy Applications
Design, Synthesis and Characterization of Advanced Nanomaterials for Environmental and Energy Applications

Author: Mohammad S Seraji

Publisher:

Published: 2017

Total Pages:

ISBN-13:

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The research work presented in this thesis is focused on design, synthesis, and characterization of transition metal oxide nanomaterials for environmental and energy applications. New synthetic techniques are designed and optimized for improved catalytic activity of the prepared materials over the conventional techniques. The nanomaterials were thoroughly characterized and used in various chemical reactions. There are five chapters in this thesis. Chapter one provides background information and significance about four research projects presented in this thesis. Chapter two explains the catalyst design and single step synthesis of mesoporous sulfated zirconia using inverse micelle templated method for biodiesel production. This inverse micelle templated single step synthesis method for sulfated metal oxide solid acid is novel and provides high thermal stability and better catalytic activity than nonporous sulfated materials. Chapter three describes the synthesis of artificial antibody-like binding sites on silica nanoparticle using molecular imprinting technique. Human serum albumin (HSA) and glucose oxidase (GOx) proteins were used as templates to prepare artificial antibodies. Our results showed that the template proteins, HAS and GOx, bind much more strongly to their respective artificial antibodies than other non-templated proteins. Chapter four discusses a facile synthesis of cobalt oxide/cobalt sulfide carbon (carbon nanotube or graphene oxide) hybrid material for electrocatalytic hydrogen production. Finally, chapter five suggests the mild transformation of mesoporous titanium dioxide (TiO2) into black titanium dioxide nanomaterial with H2/Ar under ambient pressure. Reduced of the prepared TiO2 material also led to different colored TiO2 (yellow, gray, black) depending on reaction time and temperature. The correlation between color, structure, and reactivity of these materials was presented in this chapter.

Nanotechnology in Catalysis 3
Nanotechnology in Catalysis 3

Author: Bing Zhou

Publisher: Springer Science & Business Media

Published: 2007-09-05

Total Pages: 342

ISBN-13: 0387346880

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This volume continues the tradition formed in Nanotechnology in Catalysis 1 and 2. As with those books, this one is based upon an ACS symposium. Some of the most illustrious names in heterogeneous catalysis are among the contributors. The book covers: Design, synthesis, and control of catalysts at nanoscale; understanding of catalytic reaction at nanometer scale; characterization of nanomaterials as catalysts; nanoparticle metal or metal oxides catalysts; nanomaterials as catalyst supports; new catalytic applications of nanomaterials.

Nanoparticles in Catalysis
Nanoparticles in Catalysis

Author: Karine Philippot

Publisher: John Wiley & Sons

Published: 2021-06-28

Total Pages: 384

ISBN-13: 3527346074

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Nanoparticles in Catalysis Discover an essential overview of recent advances and trends in nanoparticle catalysis Catalysis in the presence of metal nanoparticles is an important and rapidly developing research field at the frontier of homogeneous and heterogeneous catalysis. In Nanoparticles in Catalysis, accomplished chemists and authors Karine Philippot and Alain Roucoux deliver a comprehensive guide to the key aspects of nanoparticle catalysis, ranging from synthesis, activation methodology, characterization, and theoretical modeling, to application in important catalytic reactions, like hydrogen production and biomass conversion. The book offers readers a review of modern and efficient tools for the synthesis of nanoparticles in solution or onto supports. It emphasizes the application of metal nanoparticles in important catalytic reactions and includes chapters on activation methodology and supported nanoclusters. Written by an international team of leading voices in the field, Nanoparticles in Catalysis is an indispensable resource for researchers and professionals in academia and industry alike. Readers will also benefit from the inclusion of: A thorough introduction to New Trends in the Design of Metal Nanoparticles and Derived Nanomaterials for Catalysis An exploration of Dynamic Catalysis and the Interface Between Molecular and Heterogeneous Catalysts A practical discussion of Metal Nanoparticles in Water: A Relevant Toolbox for Green Catalysis Organometallic Metal Nanoparticles for Catalysis A concise treatment of the opportunities and challenges of CO2 Hydrogenation to Oxygenated Chemicals Over Supported Nanoparticle Catalysts Perfect for catalytic, organic, inorganic, and physical chemists, Nanoparticles in Catalysis will also earn a place in the libraries of chemists working with organometallics and materials scientists seeking a one-stop resource with expert knowledge on the synthesis and characterization of nanoparticle catalysis.

Synthesis, Properties, and Applications of Oxide Nanomaterials
Synthesis, Properties, and Applications of Oxide Nanomaterials

Author: José A. Rodriguez

Publisher: John Wiley & Sons

Published: 2007-03-30

Total Pages: 640

ISBN-13: 0470108967

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Current oxide nanomaterials knowledge to draw from and build on Synthesis, Properties, and Applications of Oxide Nanomaterials summarizes the existing knowledge in oxide-based materials research. It gives researchers one comprehensive resource that consolidates general theoretical knowledge alongside practical applications. Organized by topic for easy access, this reference: * Covers the fundamental science, synthesis, characterization, physicochemical properties, and applications of oxide nanomaterials * Explains the fundamental aspects (quantum-mechanical and thermodynamic) that determine the behavior and growth mode of nanostructured oxides * Examines synthetic procedures using top-down and bottom-up fabrication technologies involving liquid-solid or gas-solid transformations * Discusses the sophisticated experimental techniques and state-of-the-art theory used to characterize the structural and electronic properties of nanostructured oxides * Describes applications such as sorbents, sensors, ceramic materials, electrochemical and photochemical devices, and catalysts for reducing environmental pollution, transforming hydrocarbons, and producing hydrogen With its combination of theory and real-world applications plus extensive bibliographic references, Synthesis, Properties, and Applications of Oxide Nanomaterials consolidates a wealth of current, complex information in one volume for practicing chemists, physicists, and materials scientists, and for engineers and researchers in government, industry, and academia. It's also an outstanding reference for graduate students in chemistry, chemical engineering, physics, and materials science.