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Nanostructured Electrocatalysts For Co2 Conversion
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Book Synopsis Nanostructured Electrocatalysts for CO2 Conversion by : Phil De Luna
Download or read book Nanostructured Electrocatalysts for CO2 Conversion written by Phil De Luna and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Renewables-powered electrochemical activation and conversion of water + CO2 into hydrocarbons and oxygenates could potentially offer a sustainable, low-net-emissions, route to produce many of the world's most needed commodity chemicals and fuels. In this thesis I report progress in the synthesis, characterization, and computational modelling of electrocatalyst materials for the CO2 reduction reaction. I show how experiment, theory, and spectroscopy can be used together to uncover physicochemical phenomena; I build nanostructured materials to exploit these phenomena; and I integrate these materials into electrocatalytic systems. I first begin by examining the pathways toward industrial implementation of CO2 reduction technology. I give a brief technoeconomic analysis and carbon emissions assessment of certain valuable products. I then describe the concept of Field-Induced Reagent Concentration (FIRC) on gold nanoneedle catalysts. This entails the use of nanostructured morphologies to produce a high local electric field that attracts positively charged cations to stabilize CO2 reaction intermediates to produce CO with Faradaic efficiencies above 90% and overpotentials of 240 mV. I continue with a description of the potential for tandem catalysis between metal-organic frameworks (MOFs) and gold nanoneedles towards tuning CO2 reduction. Next, I describe how thin layers of amorphous sulfide-doped tin catalysts on top of gold nanoneedles can modulate CO2 reduction towards formic acid synthesis with Faradaic efficiencies of 93% and current densities of 55 mA cm−2 over 40 hours. I then demonstrate a new bottom-up synthesis, catalyst electro-redeposition, that allows simultaneous control over morphology and oxidation state of copper to produce ethylene selectively. I use a combination of spectroscopy and computational simulation to explain the electronic structure-property relationships of this new catalyst and report a partial ethylene current density of 160 mA cm-2 and an ethylene/methane ratio of 200. I conclude by describing emerging directions in the field including greater understanding of electrocatalyst evolution, inspiration from biology, and integration into electrolyzer systems. I discuss the wider relevance of nanostructuring as a means to control and enhance catalytic activity.
Book Synopsis Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-Air Batteries by : Teko Napporn
Download or read book Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-Air Batteries written by Teko Napporn and published by Elsevier. This book was released on 2021-01-30 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-Air Batteries is a comprehensive book summarizing the recent overview of these new materials developed to date. The book is motivated by research that focuses on the reduction of noble metal content in catalysts to reduce the cost associated to the entire system. Metal oxides gained significant interest in heterogeneous catalysis for basic research and industrial deployment. Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-Air Batteries puts these opportunities and challenges into a broad context, discusses the recent researches and technological advances, and finally provides several pathways and guidelines that could inspire the development of ground-breaking electrochemical devices for energy production or storage. Its primary focus is how materials development is an important approach to produce electricity for key applications such as automotive and industrial. The book is appropriate for those working in academia and R&D in the disciplines of materials science, chemistry, electrochemistry, and engineering. Includes key aspects of materials design to improve the performance of electrode materials for energy conversion and storage device applications Reviews emerging metal oxide materials for hydrogen production, hydrogen oxidation, oxygen reduction and oxygen evolution Discusses metal oxide electrocatalysts for water-splitting, metal-air batteries, electrolyzer, and fuel cell applications
Book Synopsis Electrochemical Reduction of Carbon Dioxide on Nanostructured Catalysts by : Md Nur Hossain
Download or read book Electrochemical Reduction of Carbon Dioxide on Nanostructured Catalysts written by Md Nur Hossain and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There is great interest in the conversion of carbon dioxide (CO2) to useful chemicals and fuels toward addressing the increasingly serious impacts of global climate change. The electrochemical reduction of CO2 has garnered keen and broad interest due to the development of efficient electrocatalysts. In this thesis I initially demonstrated a facile approach for the synthesis of a novel nanostructured thin film comprised of Cu nanoparticles (NPs) and reduced graphene oxide (rGO) on a glassy carbon electrode (GCE), via the direct electrochemical reduction of a mixture of copper and graphene oxide (GO) precursors. The effects of an applied potential on the electrochemical reduction of CO2 was investigated using linear sweep voltammetric (LSV) and chronoamperometric (CA) techniques. Carbon monoxide (CO) and formate were found as the primary products based on gas chromatograph (GC) and high performance liquid chromatography (HPLC) analysis. The electrochemical reduction of CO2 at the Cu/rGO thin film was further studied using in situ electrochemical ATR-FTIR spectroscopy to identify the liquid products that were generated at different applied cathodic potentials. Our experimental measurements revealed that the nanostructured Cu/rGO thin film exhibited excellent stability and superb catalytic activity for the electrochemical reduction of CO2 in an aqueous solution, with a high current efficiency of 69.4% at -0.6 V vs. RHE.
Book Synopsis Nanostructured Materials for Next-Generation Energy Storage and Conversion by : Fan Li
Download or read book Nanostructured Materials for Next-Generation Energy Storage and Conversion written by Fan Li and published by Springer. This book was released on 2018-04-17 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: The energy crisis and pollution have posed significant risks to the environment, transportation, and economy over the last century. Thus, green energy becomes one of the critical global technologies and the use of nanomaterials in these technologies is an important and active research area. This book series presents the progress and opportunities in green energy sustainability. Developments in nanoscaled electrocatalysts, solid oxide and proton exchange membrane fuel cells, lithium ion batteries, and photovoltaic techniques comprise the area of energy storage and conversion. Developments in carbon dioxide (CO2) capture and hydrogen (H2) storage using tunable structured materials are discussed. Design and characterization of new nanoscaled materials with controllable particle size, structure, shape, porosity and band gap to enhance next generation energy systems are also included. The technical topics covered in this series are metal organic frameworks, nanoparticles, nanocomposites, proton exchange membrane fuel cell catalysts, solid oxide fuel cell electrode design, trapping of carbon dioxide, and hydrogen gas storage.
Book Synopsis Nano-catalysts for Energy Applications by : Rohit Srivastava
Download or read book Nano-catalysts for Energy Applications written by Rohit Srivastava and published by CRC Press. This book was released on 2021-07-29 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises of chapters based on design of various advanced nano-catalysts and offers a development of novel solutions for a better sustainable energy future. The book includes all aspects of physical chemistry, chemical engineering and material science. The advances in nanoscience and nanotechnology help to find cost-effective and environmentally sound methods of converting naturally inspired resources into fuels, chemicals and energy. The book leads the scientific community to the most significant development in the focus research area. It provides a broad and in-depth coverage of design and development advanced nano-catalyst for various energy applications.
Book Synopsis Nanostructured Catalysts for Conversion of CO2 Into Hydrocarbons by : David Williamson
Download or read book Nanostructured Catalysts for Conversion of CO2 Into Hydrocarbons written by David Williamson and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nanomaterials for Electrocatalysis by : Thandavarayan Maiyalagan
Download or read book Nanomaterials for Electrocatalysis written by Thandavarayan Maiyalagan and published by Elsevier. This book was released on 2022-01-18 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approx.380 pages Approx.380 pages
Book Synopsis 2D Nanomaterials for CO2 Conversion into Chemicals and Fuels by : Kishor Kumar Sadasivuni
Download or read book 2D Nanomaterials for CO2 Conversion into Chemicals and Fuels written by Kishor Kumar Sadasivuni and published by Royal Society of Chemistry. This book was released on 2022-08-12 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the fundamentals, properties, and applications, all aspects of 2D nanomaterial composites within carbon dioxide conversion are discussed. This book will be of interest to graduate students and researchers in materials science, energy, and environmental science, as well as those in industry.
Book Synopsis Anisotropic and Shape-Selective Nanomaterials by : Simona E. Hunyadi Murph
Download or read book Anisotropic and Shape-Selective Nanomaterials written by Simona E. Hunyadi Murph and published by Springer. This book was released on 2017-07-14 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews recent advances in the synthesis, characterization, and physico-chemical properties of anisotropic nanomaterials. It highlights various emerging applications of nanomaterials, including sensing and imaging, (bio)medical applications, environmental protection, plasmonics, catalysis, and energy. It provides an excellent and comprehensive overview of the effect that morphology and nanometric dimension has on the physico-chemical properties of various materials and how this leads to novel applications.
Book Synopsis Pd Nanostructured Electrocatalysts for Renewables Conversion by : Valentina Bambagioni
Download or read book Pd Nanostructured Electrocatalysts for Renewables Conversion written by Valentina Bambagioni and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The depletion of fossil fuels and climate changes caused by greenhouse gases are boosting increasing research efforts to find out alternative energy sources and technologies. Among these, fuel cells are receiving much attention for their efficiency as well as the capability to use, besides hydrogen, a variety of renewable fuels such as alcohols and carbohydrates. Fuel cells of which there exist different types according to the electrolyte employed, working temperature and fuel, are electrochemical devices that directly convert the chemical energy stored in a fuel into electrical energy with little or no emission of greenhouse gases, no noise and with high energy efficiency. In this doctorate thesis, we have focused our attention on Direct Alcohol Fuel Cells (DAFC), i. e. low temperature fuel cells that make use of renewable alcohols as fuel. We have synthesized several new anode electrocatalysts and have also developed a new type of DAFC where alcohols are partially and selectively oxidized to carboxylic acids.
Book Synopsis Nanostructured Materials for Energy Related Applications by : Saravanan Rajendran
Download or read book Nanostructured Materials for Energy Related Applications written by Saravanan Rajendran and published by Springer. This book was released on 2019-02-11 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the role and fundamental aspects of the diverse ranges of nanostructured materials for energy applications in a comprehensive manner. Advanced nanomaterial is an important and interdisciplinary field which includes science and technology. This work thus gives the reader an in depth analysis focussed on particular nanomaterials and systems applicable for technologies such as clean fuel, hydrogen generation, absorption and storage, supercapacitors, battery applications and more. Furthermore, it not only aims to exploit certain nanomaterials for technology transfer, but also exploits a wide knowledge on avenues such as biomass-derived nanomaterials, carbon dioxide conversions into renewable fuel chemicals using nanomaterials. These are the areas with lacunae that demand more research and application.
Book Synopsis Rational Design and Synthesis of Inorganic Nanostructures for Tandem Catalysis and CO2 Conversion by : Chenlu Xie
Download or read book Rational Design and Synthesis of Inorganic Nanostructures for Tandem Catalysis and CO2 Conversion written by Chenlu Xie and published by . This book was released on 2018 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this dissertation focuses on the design and synthesis of new catalysts with well-defined structures and superior performance to meet the new challenges in heterogenous catalysis. The past decade has witness the development of nanoscience as well as the inorganic catalysts for industrial applications, however there are still fundamental challenges and practical need for catalysis. Specifically, it is desirable to have the ability to selectivity produce complex molecules from simple components. Another great challenge faced by the modern industry is being environmentally friendly, and going for a carbon neutral economy would require using CO2 as feedstock to produce valuable products. The work herein focuses on the design and synthesis of inorganic nanocrystal catalysts that address these challenges by achieving selective and sequential chemical reactions and conversion of CO2 to valuable products. Chapter 1 introduces the development of heterogenous catalysis and the colloidal synthesis of metal nanoparticles catalysts with well-controlled structure. Tremendous efforts have been devoted to understanding the nucleation and growth process in the colloidal synthesis and developing new methods to produce metal nanoparticles with controlled sizes, shapes, composition. These well-defined catalytic system shows promising catalytic performance, which can be modulated by their structure (size, shape, compositions and the metal-oxide interfaces). The chapters hereafter explore the synthesis of new catalysts with controlled structures for catalysis. Chapter 2 presents the design and synthesis of a three dimensional (3D) nanostructured catalysts CeO2-Pt@mSiO2 with dual metal-oxide interfaces to study the tandem hydroformylation reaction in gas phase, where CO and H2 produced by methanol decomposition (catalyzed by CeO2-Pt interface) were reacted with ethylene to selectively yield propyl aldehyde (catalyzed by Pt-SiO2 interface). With the stable core-shell architecture and well-defined metal-oxide interfaces, the origin of the high propyl aldehyde selectivity over ethane, the dominant byproduct in conventional hydroformylation, was revealed by in-depth mechanism study and attributed to the synergybetween the two sequential reactions and the altered elementary reaction steps of the tandem reaction compared to the single-step reaction. The effective production of aldehyde through the tandem hydroformylation was also observed on other light olefin system, such as propylene and 1-butene. Chapter 3 expands the strategy of tandem catalysis into conversion of CO2 with hydrogen to value-added C2-C4 hydrocarbons, which is a major pursuit in clean energy research. Another well-defined 3D catalyst CeO2–Pt@mSiO2–Co was designed and synthesized, and CO2 was converted to C2-C4 hydrocarbons with 60% selectivity on this catalyst via reverse water gas shift reaction and subsequent Fischer–Tropsch process. In addition, the catalysts is stable and shows no obvious deactivation over 40 h. The successful production of C2−C4 hydrocarbons via a tandem process on a rationally designed, structurally well-defined catalyst demonstrates the power of sophisticated structure control in designing nanostructured catalysts for multiple-step chemical conversions. Chapter 4 turns to electrochemistry and apply the precision in catalyst structural design to the development of electrocatalysts for CO2 reduction. Herein, atomic ordering of bimetallic nanoparticles were synthetically tuned, from disordered alloy to ordered intermetallic, and it showed that this atomic level control over nanocrystal catalysts could give significant performance benefits in electrochemical CO2 reduction to CO. Atomic-level structural investigations revealed the atomic gold layers over the intermetallic core to be sufficient for enhanced catalytic behavior, which is further supported by DFT analysis.
Book Synopsis Nanotechnology in Electrocatalysis for Energy by : Alessandro Lavacchi
Download or read book Nanotechnology in Electrocatalysis for Energy written by Alessandro Lavacchi and published by Springer Science & Business Media. This book was released on 2014-01-28 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on nanotechnology in electrocatalysis for energy applications. In particular the book covers nanostructured electrocatalysts for low temperature fuel cells, low temperature electrolyzers and electrochemical valorization. The function of this book is to provide an introduction to basic principles of electrocatalysis, together with a review of the main classes of materials and electrode architectures. This book will illustrate the basic ideas behind material design and provide an introductory sketch of current research focuses. The easy-to-follow three part book focuses on major formulas, concepts and philosophies. This book is ideal for professionals and researchers interested in the field of electrochemistry, renewable energy and electrocatalysis.
Book Synopsis Selective and Efficient Electrochemical CO2 Reduction on Nanostructured Catalysts by :
Download or read book Selective and Efficient Electrochemical CO2 Reduction on Nanostructured Catalysts written by and published by . This book was released on 2015 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nanoelectrocatalysts for Energy and Water Treatment by : Kumar Raju (Writer on nanostructured materials)
Download or read book Nanoelectrocatalysts for Energy and Water Treatment written by Kumar Raju (Writer on nanostructured materials) and published by Springer Nature. This book was released on 2024 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials have recently garnered significant attention and practical importance for heterogeneous electrocatalysis. This book presents recent developments in the design, synthesis, and characterisation of nanostructured electrocatalytic materials, with a focus on applications to energy and wastewater treatment. Electrocatalytic nanomaterials can enhance process efficiency and sustainability, thus providing innovative solutions for a wide array of areas such as sustainable energy production, conversion, and wastewater treatment. Readers will gain insights into the latest breakthroughs in electrocatalysis and the activity of nanomaterials in energy conversion applications, e.g., fuel cells, hydrogen production, water splitting, and electro/photocatalytic water splitting, as well as for wastewater treatment. The book explores the development of advanced electrocatalysts, particularly hybrid materials.
Book Synopsis Nanostructured Non-noble Metal Based Electrocatalysts for Activation of Small Molecules O2, H2O and CO2 in Energy Conversion Applications by : Laura Carolina Pardo Pérez
Download or read book Nanostructured Non-noble Metal Based Electrocatalysts for Activation of Small Molecules O2, H2O and CO2 in Energy Conversion Applications written by Laura Carolina Pardo Pérez and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrochemical and Electrocatalytic Reactions of Carbon Dioxide by : B.P. Sullivan
Download or read book Electrochemical and Electrocatalytic Reactions of Carbon Dioxide written by B.P. Sullivan and published by Elsevier. This book was released on 2012-12-02 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recycling of atmospheric molecules for use as fuels and chemicals is a goal which can only be achieved through a deeper understanding of catalytic processes, particularly electrocatalysis whereby redox transformations can be interfaced with solar or nuclear energy input. Carbon dioxide is a prototypical small molecule in many regards since it is chemically inert. In addition, because of the likely role of carbon dioxide in global temperature cycles, it will be imperative in the future to regulate the output from industrial processes. The purpose of this book is to present a unified discussion of the carbon dioxide chemistry which is necessary for the understanding and design of electrochemically-driven processes for the reduction of carbon dioxide and to provide an impetus for the further development of electrocatalytic carbon dioxide chemistry.
