Download or read book Seeded Growth of Noble Metal Nanocrystals written by Yiqun Zheng and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research emphasizes on the use of seeded growth in synthesis of noble metal nanocrystals with precise control over the size, shape, and composition. In the first part of this work, I have produced Au nanocrystals with single-crystal structure and truly spherical profiles and investigated their optical properties and self-assembly as induced by dilution with water. These Au nanospheres were generated in high yield and purity, together with controllable sizes continually increased from 5 to 150 nm. I also found these Au nanospheres self-assembled into dimers, larger aggregates, and wavy nanowires, respectively, as diluted with water. :In the second part of this work, I demonstrate the kinetic control can be implemented to control the shape of mono- and bi-metallic nanocrystals in seeded growth. The as-prepared single-crystal nanospheres of Au were employed as seeds to synthesize of tetrahedral Au nanocrystals and Au@Pd core-shell nanocrystals with six distinct shapes. The success of the two demonstrations relies on manipulation of reaction kinetics to achieve different product shapes. The reaction kinetics was controlled by varying a set of reaction parameters, including the type and concentration of capping agent, the amount of reductant, and the injection rate of metal precursor solution. :In the final part of this work, I will discuss an unusual change in crystallinity observed in seeded growth of Au nanocrystals on Au seeds. In particular, single-crystal Au seeds treated with a chemical species could develop twin defects during the seed-mediated growth process to yield multiply twinned products.
Download or read book Metal Nanocrystals written by Kallum M. Koczkur and published by American Chemical Society. This book was released on 2020-07-31 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our society depends heavily on metals. They are ubiquitous construction materials, critical interconnects in integrated circuits, common coinage materials, and more. Excitingly, new uses for metals are emerging with the advent of nanoscience, as metal crystals with nanoscale dimensions can display new and tunable properties. The optical and photothermal properties of metal nanocrystals have led to cancer diagnosis and treatment platforms now in clinical trials, while, at the same time, the ability to tune the surface features of metal nanocrystals is giving rise to designer catalysts that enable more sustainable use of precious resources. These are just two examples of how metal nanocrystals are addressing important social needs.
Download or read book Shaping Metal Nanocrystals Through Epitaxial Seeded Growth written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphological control of nanocrystals has becomeincreasingly important, as many of their physical and chemical propertiesare highly shape-dependent. Nanocrystal shape control for both single andmultiple material systems, however, remains fairly empirical andchallenging. New methods need to be explored for the rational syntheticdesign of heterostructures with controlled morphology. Overgrowth of adifferent material on well-faceted seeds, for example, allows for the useof the defined seed morphology to control nucleation and growth of thesecondary structure. Here, we have used highly faceted cubic Pt seeds todirect the epitaxial overgrowth of a secondary metal. We demonstrate thisconcept with lattice matched Pd to produce conformal shape-controlledcore-shell particles, and then extend it to lattice mismatched Au to giveanisotropic growth. Seeding with faceted nanocrystals may havesignificant potential towards the development of shape-controlledheterostructures with defined interfaces.
Download or read book Mechanistic Insights Into Transformation and Growth of Chalcogenide and Noble Metal Nanoparticles written by Suprita Jharimune and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With conventional methods of colloidal nanoparticle (NP) synthesis, it is often difficult to precisely control NPs size, shape, and chemical composition that are the most important factors in defining their properties and behavior. This has led to a growing interest in the transformation of easily synthesizable nanostructures into more complex ones by post-synthetic modifications such as cation exchange, seeded growth, galvanic exchange, etc. to facilitate independent control over these parameters. In order to develop rational design strategies for the synthesis of colloidal NPs, it is crucial to understand the mechanisms encompassing their growth and transformation. In this dissertation, I have worked on two projects focusing on unraveling transformation and growth mechanisms in nanostructured materials--cation exchange (CE) in CdSe NPs and shape-controlled growth of anisotropic Ag NPs. CE has been utilized as a promising approach to synthesize nanostructures that cannot be synthesized directly from its precursors. The thermodynamic feasibility of a CE system is often based on trial and error because of the unavailability of rigorous quantitative studies. Available quantitative methods are based on lattice energy and solvation energy of bulk crystals that do not account for nanoscale effects. In Chapter 2, I have demonstrated, the thermodynamics of the CE between CdSe NPs and Ag+ in solution can be quantified using isothermal titration calorimetry (ITC). In this chapter, the influence of CdSe NP diameter, capping ligands, and temperature are surveyed and a detailed description of overall thermodynamic parameters--Keq, [delta]H, [delta]S, and stoichiometry (n) is reported. Gibbs free energy ([delta]Grxn) of CE between CdSe NPs with Ag+ obtained from ITC shows an additional stabilization of ~ -14 kJ/mol compared to values calculated from qualitative methods. In Chapter 3, I extended the application of ITC to measure the influence of cation solvation on CE thermodynamics. In this chapter, the influence of spectator anions, solvents, and exchanging cation identity are surveyed. This work demonstrated the application of ITC to probe thermochemistry of nanoscale transformations under relevant solution conditions. Ag NPs have been synthesized in various shapes (cubes, octahedra, nanowires, etc.) to serve specific applications, however, the mechanism of shape transformation and role of each component in the synthesis is not explicitly understood. Ag nanocubes is primarily synthesized by polyol method, where the solvent is considered as the reducing agent and PVP the shape-directing agent. In Chapter 4, I built an experimental phase diagram for the formation of Ag nanocubes as a function of PVP monomer concentration (Cm) and molecular weight (Mw). Incorporation of PVP with aldehyde and hydroxyl end-groups in the synthesis leads to formation of Ag nanocubes and a mixture of nanocubes and nanowires respectively, indicating that a stronger reducing agent (hydroxyl) forms kinetically preferred nanowires. Measurement of relative rates of Ag+ reduction at different PVP Cm and Mw confirmed the reducing effect originates from the end-groups. Although, the end-group/Ag+ ratio is below stoichiometric, it is demonstrated, PVP end-groups induce the reduction of Ag+ (nucleation), followed by an autocatalytic reduction at a rate commensurate with AgCl dissolution. Combining nanostructure synthesis with polymer synthesis enabled us to quantitively decipher the role of ubiquitously used PVP polymer in nanoparticle shape-control. Ag octahedra are synthesized by seed-mediated growth of Ag NCs in presence of Cu2+ ions, yet, the role of Cu2+ in shape transformation of Ag is still unknown. In Chapter 5, I used several Mn+ (Ni2+, Co2+, Cu2+, Pd2+, and Au3+) to study their relative effect on Ag NCs to octahedra conversion. Guided by findings from these experiments, I proposed a detailed mechanism for the transformation process. Mn+ deposits on Ag (100) surface through underpotential deposition or galvanic exchange reaction, depending on their reduction potential with respect to Ag. This leads to faster growth of the Ag (100) facets, resulting in their disappearance and retention of the Ag (111) facets thus forming Ag octahedra. We envision, these Ag octahedra could be utilized as single atom alloy (SAA) catalysts owing to the very low amount of Mn+ on the Ag octahedra surface. Galvanic replacement reaction (GRR) is often used to synthesize complex porous metal nanostructures by reacting a template NP with a metal salt of higher reduction potential. However, thermodynamics of GRR systems have not been studied before. Motivated by the robustness of ITC in studying thermodynamics of nanocrystals transformation, in Chapter 6, I propose employing ITC to understand the thermodynamics and transformation mechanism of silver nanocube GRR with Au3+, Pd2+, and Pt2+. Preliminary results demonstrate that a combination of calorimetry and spectroscopy can be instrumental in understanding the thermodynamics of nanoparticle transformation via GRR. Additional experiments and characterization to explain the findings from preliminary experiments are suggested.
Download or read book Seed mediated Growth of Gold Nanocrystals written by and published by . This book was released on 2014 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report our observation of changes to the crystallinity or morphology during seed-mediated growth of Au nanocrystals. When single-crystal Au seeds with a spherical or rod-like shape were treated with a chemical species such as S2O32− ions, twin defects were developed during the growth process to generate multiply twinned nanostructures. X-ray photoelectron spectroscopy analysis indicated that the S2O32− ions were chemisorbed on the surfaces of the seeds during the treatment. The chemisorbed S2O32− ions somehow influenced the crystallization of Au atoms added onto the surface during a growth process, leading to the formation of twin defects. In contrast to the spherical and rod-like Au seeds, the single-crystal structure was retained to generate a concave morphology when single-crystal Au seeds with a cubic or octahedral shape were used for a similar treatment and then seed-mediated growth. The different outcomes are likely related to the difference in spatial distribution of S2O32− ions chemisorbed on the surface of a seed. This approach based on surface modification is potentially extendable to other noble metals for engineering the crystallinity and morphology of nanocrystals formed via seed-mediated growth.
Download or read book The Growth and Characterization of Films of Noble Metal Nanocrystals and Inorganic Semiconductors at the Interface of Two Immiscible Liquids written by Enteisar Al-Brasi and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Deposition of noble metal and semiconductor nanocrystalline thin films has received much attention. CdS and CdSe are important semiconductors used in optical devices. A wet chemical route which uses the interface of two immiscible liquids to control the growth and deposition of nanocrystalline thin films forms the basis of the current study. In this method, a metal precursor dissolved in toluene or decane is held in contact with a water layer containing a reducing or sulphiding agent. The reaction proceeds at the interface of the liquids and results in deposits adhering to the interfacial region. The products of such reactions typically consist of nanocrystals forming a thin film. Stable sols of Au, Ag were found to metathesize on contact with alkylamine in oil to form monolayer films that spread across large areas at the water/oil interface. The nature and properties of interfacial thin films depend on the alkylamine. Nanocrystalline thin films consisting of CdS adhering to the interface starting with a polydispersed aqueous sol of crystallites and alkylamine were obtained. The optical band gaps of the films formed are dependent on the alkylamine chain length, with the shortest chain yielding the largest gap. A systematic increase in particle diameters following adsorption is responsible for changes in the electronic structure of films. The formation of nanocrystalline films of CdS adhering at the interface using a toluene solution of cadmium diethyldithiocarbamate and aqueous Na2S solution, in the presence of tetraoctylammonium bromide (TOAB) in the aqueous phase, was investigated under various reaction parameters, while CdSe was obtained using Na2SeSO3 solution and the influences of deposition temperature and solution concentration were studied. A ternary water/decane/2-butoxyethanol /salt system was used to grow deposits of CdSe and CdS. Nanostructured thin films were obtained at the upper interface of the ternary system, between the emulsive middle layer and oil rich top phase. The influence of deposition conditions such as precursor concentrations and temperature, as well as the nature of the medium on the properties of the deposits was studied. Deposits grown using the ternary system were compared with those obtained using water/decane and water/toluene systems. Reaction parameters such as temperature, solution concentration and the size of CdS and CdSe were controlled. A thin film of CdS and CdSe nanocrystals was formed at the interface. The grain size was found to be dependent on reaction temperature and solution concentration, with higher temperatures and solution concentration resulting in larger grains. The nature of thin films obtained at the interface of two immiscible liquids and of a water/decane/2-butoxyethanol/salt ternary system were studied using Scanning and Transmission electron microscopy, X-ray diffraction and UV-visible spectroscopy.
Download or read book Colloidal Synthesis of Plasmonic Nanometals written by Luis Liz-Marzán and published by CRC Press. This book was released on 2020-04-23 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noble metal nanoparticles have attracted enormous scientific and technological interest because of their unique optical properties, which are related to surface plasmon resonances. The interest in nanosized metal particles dates back to ancient societies, when metals were used in various forms as decorative elements. From the famous Lycurgus cup, made by the Romans in the 4th century AD, through thousands of stained glasses in churches and cathedrals all over medieval Europe, bright-yellow, green, or red colors have been obtained by a touch of metallic additions during glass blowing. This peculiar interaction of light with nanometals can be widely tuned through the morphology and assembly of nanoparticles, thereby expanding the range of potential applications, from energy and information storage to biomedicine, including novel diagnostic and therapeutic methods. This book compiles recent developments that clearly illustrate the state of the art in this cutting-edge research field. It comprises different review articles written by the teams of Prof. Luis Liz-Marzán, an international leader in chemical nanotechnology who has made seminal contributions to the use of colloid chemistry methods to understand and tailor the growth of metal particles at the nanoscale. Apart from synthesis, the book also describes in detail the plasmonic properties of nanomaterials and illustrates some representative applications. This book will appeal to anyone involved in nanotechnology, nanocrystal growth, nanoplasmonics, and surface-enhanced spectroscopies.
Download or read book Biomimetic Synthesis of Noble Metal Nanocrystals written by Chin-Yi Chiu and published by . This book was released on 2013 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the nanometer scale, the physical and chemical properties of materials heavily depend on their sizes and shapes. This fact has triggered considerable efforts in developing controllable nanomaterial synthesis. The controlled growth of colloidal nanocrystal is a kinetic process, in which high-energy facets grow faster and then vanish, leading to a nanocrystal enclosed by low-energy facets. Identifying a surfactant that can selectively bind to a particular crystal facet and thus lower its surface energy, is critical and challenging in shape controlled synthesis of nanocrystals. Biomolecules exhibiting exquisite molecular recognition properties can be exploited to precisely engineer nanostructured materials. In the first part of my thesis, we employed the phage display technique to select a specific multifunctional peptide sequence which can bind on Pd surface and mediate Pd crystal nucleation and growth, achieving size controlled synthesis of Pd nanocrystals in aqueous solution. We further demonstrated a rational biomimetic approach to the predictable synthesis of nanocrystals enclosed by a particular facet in the case of Pt. Specifically, Pt {100} and Pt {111} facet-specific peptides were identified and used to synthesize Pt nanocubes and Pt nano-tetrahedrons, respectively. The mechanistic studies of Pt {111} facet-specific peptide had led us to study the facet-selective adsorption of aromatic molecules on noble metal surfaces. The discoveries had achieved the development of design strategies to select facet-selective molecules which can synthesize nanocrystals with expected shapes in both Pt and Pd system. At last, we exploited Pt facet-specific peptides and controlled the molecular interaction to produce one- and three- dimensional nanostructures composed of anisotropic nanoparticles in synthetic conditions without supramolecular pre-organization, demonstrating the full potential of biomolecules in mediating material formation process. My research on biomimetic synthesis of nanocrystals with shape control and nanostructures with control over the anisotropy are unprecedented, representing a step forward in achieving the goal of producing complex nanostructures with required properties. The fundamental studies on the biomolecule-inorganic interfaces have contributed to advancing the synthesis tool of colloidal nanomaterials and enriching understating of organic-inorganic interface, impacting many applications.
Download or read book Noble Metal Nanoparticles written by Ignác Capek and published by Springer. This book was released on 2017-07-20 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader the chemistry of reaction approaches by which noble metal nanoparticles are synthesized, including synthetic approaches using the Brust–Schiffrin method , a high-temperature solution-phase synthesis, polymer and biological entities, weak and strong reducing and capping agents, the low and high temperatures, various additives and various novel approaches such as plasma, ionic liquids, UV light and gamma rays and others. This book starts with a brief overview of foundation work concerned with the chapter topics such as nanomaterials, nanoscience, surface-capping molecules, traditional and nontraditional reduction agents, In addition, chemical and physical properties of noble metal nanoparticles with different structures and elements such as monolayered clusters, nanorods, and bimetallic nanoparticles are described comprehensively. The aim is to summarize the fundamentals and mechanistic approaches in the preparation and characterization of metal colloidal nanoparticles and dispersions. In this way the reader is provided with a systematic and coherent picture of the interesting field of nanoscience based on noble metal colloidal nanoparticles. Intended as a wide-ranging overview, the book is a resource for novices in the field as well as for specialists, particularly those scientists working in the area of nanoparticle synthesis. Nanoscience and nanotechnology are discussed from the chemist’s point of view. Therefore, this volume describes in detail the terms, definitions, theories, experiments, and techniques dealing with the synthesis of noble metal nanoparticles. The material presented here is essential reading for research chemists, technologists, and engineers in the fields of specialty nanomaterials and metal industries, and also is highly valuable for researchers in university, institutional, and governmental laboratories, especially for those at advanced stages of their careers.
Download or read book Noble Metal Based Nanocomposites written by Jun Yang and published by John Wiley & Sons. This book was released on 2019-06-10 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a systematic and coherent picture of the solution-based methods for the preparation of noble metal-based composite nanomaterials, their characterization, and potential applications in electrocatalysis Within the last decade, the development of wet-chemistry methods has led to the blossom of research in composite nanomaterials. However, the design and synthesis of composite nanomaterials with controlled properties remains a significant challenge. This book summarizes the solution-based methods for the preparation of noble metal-based composite nanomaterials. It examines their characterization, as well as their use in electrocatalysis. It also discusses the intrinsic relationship between the catalytic properties and the physical /chemical effects in the composite materials, and offers some perspectives for the future development of metal-based composite nanomaterials. In addition, the book not only provides a systematic and coherent picture of this field, but also inspires rethinking of the current processing technologies. Noble Metal-Based Nanocomposites: Preparation and Applications offers in-depth chapter coverage of ethanol-mediated phase transfer of metal ions and nanoparticles. It presents the full range of nanocomposites consisting of chalcogenide semiconductors and gold, silver sulfide, or other noble metals. It also examines core-shell structured cadmium selenide-platinum nanocomposites; Pt-containing Ag2S-noble metal nanocomposites for direct methanol fuel cells operated at high fuel concentrations; and nanocomposites consisting of metal oxides and noble metals. In addition, the book looks at scientific issues derived from noble metal-based nanocomposites. -Covers all of the preparations of noble metal-based nanocomposites and their numerous applications -Highlights some of the recent breakthroughs in the design, engineering, and applications of noble metal-based nanocomposites -Appeals to a wide range audience, especially researchers in the areas of catalysis, chemistry, chemical engineering, materials synthesis and characterization, and fuel cell Noble Metal-Based Nanocomposites: Preparation and Applications is an excellent book for inorganic chemists, materials scientists, catalytic chemists, chemical engineers, and those interested in the subject.
Download or read book Synthesis and Growth of Anisotropic Noble Metal Nanoparticles written by Matthew Gara and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noble Metal Metal Oxide Hybrid Nanoparticles written by Satyabrata Mohapatra and published by Elsevier. This book was released on 2018-10-11 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noble Metal-Metal Oxide Hybrid Nanoparticles: Fundamentals and Applications sets out concepts and emerging applications of hybrid nanoparticles in biomedicine, antibacterial, energy storage and electronics. The hybridization of noble metals (Gold, Silver, Palladium and Platinum) with metal-oxide nanoparticles exhibits superior features when compared to individual nanoparticles. In some cases, metal oxides act as semiconductors, such as nano zinc oxide or titanium oxide nanoparticles, where their hybridization with silver nanoparticles, enhanced significantly their photocatalytic efficiency. The book highlights how such nanomaterials are used for practical applications. Examines the properties of metal-metal oxide hybrid nanoparticles that make them so adaptable Explores the mechanisms by which nanoparticles interact with each other, showing how these can be exploited for practical applications Shows how metal oxide hybrid nanomaterials are used in a range of industry sectors, including energy, the environment and healthcare
Download or read book Monolayer Protected Noble Metal Nanocrystals written by Osman Mohammed Bakr and published by . This book was released on 2009 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technique was used to ascertain that IBANs are a unique thiolated Ag cluster with a tentative molecular formula of Ag 74±2 (SR) 40±1 . The described SV-AUC technique has accuracy comparable to that of mass spectroscopy, but has the advantage of being compatible with even the most delicate clusters. The IBANs represent the first report of a stable, monodispersely synthesized thiolated Ag cluster to be reliably assigned a molecular formula. The last part of the dissertation deals with the synthesis and optical properties of gold nanourchins. These are large (|∼40-50nm) gold nanoparticles (NPs) that have multiple branches and possess a morphology similar to sea urchins. The particles are protected with a monolayer of thiols. Finite-difference time domain (FDTD) modeling suggests that these particles have large local field enhancements in the vicinity of their branches. These enhancements are found to increase the optical limiting performance of nanourchins, in comparison to spherical particles of the same dimensions.
Download or read book Biomimetic Synthesis of Noble Metal Nanocrystals and the Mechanism Studies written by Lingyan Ruan and published by . This book was released on 2014 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials with dimensions reaching the nanoscale possess novel properties different from their bulk counterparts. Engineering nanomaterials to exploit their improved functions show important applications in catalysis, electrocatalysis, electronics, optoelectronics, and energy devices. One of the challenges to date is to develop methods for producing nanomaterials in a controllable and predictable fashion. We seek to develop novel biomimetic synthetic protocols for programmable nanomaterial synthesis, i.e., using biomolecules with specific material recognition properties to manipulate nanomaterial morphologies and structures. Starting with three Pt binding peptides with distinct recognition properties, i.e., a Pt material specific peptide BP7A and two Pt facet specific peptides T7 (Pt {100} facet specific) and S7 (Pt {111} facet specific), we demonstrate a rational creation of Pt bipyramids, a new type of shape for Pt nanocrystals. The BP7A peptide is found to be able to introduce twinning during Pt nanocrystal growth. We use it to generate single twinned seeds for Pt nanocrystals. Together with targeted facet stabilization using T7/S7 peptides, Pt {100} bipyramid and {111} bipyramid are successfully synthesized for the first time. We further utilize the twin introducing property of the BP7A peptide to generate ultrathin Pt nanowire with high twin densities. We show that the Pt nanowire possesses higher electrocatalytic activity and durability in oxygen reduction and methanol oxidation reactions due to its one-dimensional nanostructure and the presence of dense twin defects, demonstrating the concept of defect engineering in nanocrystals as a strategy in the design of novel electrocatalyst. The organic-inorganic interface is a key issue in many fields including colloidal syntheses and biomimetics, the understanding of which can enable the design of new material synthetic strategies. We aim to understand how the Pt binding peptides modulate the formations of specific Pt nanostructures. We start with mechanistic investigations on S7 peptide's Pt {111} recognition property, and proceed to studying BP7A peptide's twin introducing property. With combined experimental and computational efforts, we identify the molecular origins of the biorecognition properties of these two peptides. Moreover, we extend extracted biomimetic principles to the rational design/selection of small organic molecules that deliver anticipated traits for controlled colloidal synthesis for other noble metals (Pd and Rh). Overall, we demonstrate the power of biomimetic synthesis in rationally creating nanomaterial structures with novel properties. Our mechanism studies demonstrate the rich information one can derive from biomimetic synthesis, and the broad applicability of biomimetic principles to engineering material structures for many potential applications.
Download or read book Nanostructured Materials based on Noble Metals for Advanced Biological Applications written by Iole Venditti and published by MDPI. This book was released on 2020-06-23 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Nanostructured Materials Based on Noble Metals for Advanced Biological Applications” highlights the recent progress in gold and silver nanomaterials preparation/synthesis as well as their innovative applications in advanced applications, such as in nanomedicine and nanosensors. It is nowadays generally accepted that nanostructured noble metals allow the production of highly competitive materials. In fact, a specific design and rather simple and reliable preparation techniques can be used to obtain optimized material uses and possibilities for their reusability. One expects amazing future developments for these nanotechnologies from research laboratories to key industrial areas. The Guest Editor and the MDPI staff are therefore pleased to offer this Special Issue to interested readers, including researchers, graduate and PhD students as well as postdoctoral researchers, but also to the entire community interested in the wide world of nanomaterials.
Download or read book Controllable Synthesis and Atomic Scale Regulation of Noble Metal Catalysts written by Yancai Yao and published by Springer Nature. This book was released on 2022-03-25 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the preparation of metal nanocrystals and its applications. In this book, an important point highlighted is how to design noble metal nanocrystals at the atomic scale for energy conversion and storage. It also focuses on the controllable synthesis of water splitting electrode materials including anodic oxygen evolution reaction (OER) and cathode hydrogen evolution reaction (HER) at the atomic level by defect engineering and synergistic effect. In addition, in-situ technologies and theoretical calculations are utilized to reveal the catalytic mechanisms of catalysts under realistic operating condition. The findings presented not only enrich research in the nano-field, but also support the promotion of national and international cooperation.
Download or read book Formation of Noble Metal Nanocrystals in the Presence of Biomolecules written by Justin Lockheart Burt and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
