Contents 1. Historic Introduction 293 2. General Background: Quantum Size Effect and Single-Electron Transitions 294 3. Synthesis and Assembly 296 3.1. Citrate Reduction 296 3.2. The Brust-Schiffrin Method: Two-Phase Synthesis and Stabilization by…
Applied Chemistry
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23,348 papers
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Graphene is a rapidly rising star on the horizon of materials science and condensed-matter physics. This strictly two-dimensional material exhibits exceptionally high crystal and electronic quality, and, despite its short history, has already…
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Until now, photovoltaics-the conversion of sunlight to electrical power-has been dominated by solid-state junction devices, often made of silicon. But this dominance is now being challenged by the emergence of a new generation of photovoltaic cells,…
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Content 1. General Introduction and Comments 1025 2. Preparation of Nanostructures of Different Shapes 1027 2.1. Introduction: Nucleation and Particle Growth 1027 2.2. Preparation Methods 1028 2.2.1. Sol Process 1028 2.2.2. Micelles 1031 2.2.3.…
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Organic solar cell research has developed during the past 30 years, but especially in the last decade it has attracted scientific and economic interest triggered by a rapid increase in power conversion efficiencies. This was achieved by the…
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Interest in graphene centres on its excellent mechanical, electrical, thermal and optical properties, its very high specific surface area, and our ability to influence these properties through chemical functionalization. There are a number of…
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The use of Raman spectroscopy to reveal the remarkable structure and the unusual electronic and phonon properties of single wall carbon nanotubes (SWNTs) is reviewed comprehensively. The various types of Raman scattering processes relevant to carbon…
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An improved method for the preparation of graphene oxide (GO) is described. Currently, Hummers' method (KMnO(4), NaNO(3), H(2)SO(4)) is the most common method used for preparing graphene oxide. We have found that excluding the NaNO(3), increasing…
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New, hydrophobic ionic liquids with low melting points (<-30 C to ambient temperature) have been synthesized and investigated, based on 1,3-dialkyl imidazolium cations and hydrophobic anions. Other imidazolium molten salts with hydrophilic anions…
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The highly enhanced electrochemiluminescence from a novel hybrid gold/silica/CdSe-CdS quantum-dot nanostructure has been reported for the first time, and successfully applied to develop an ultrasensitive ECL immunosensor for the detection of a…
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THE large-scale use of photovoltaic devices for electricity generation is prohibitively expensive at present: generation from existing commercial devices costs about ten times more than conventional methods 1. Here we describe a photovoltaic cell,…
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Graphene is the name given to a two-dimensional sheet of sp2-hybridized carbon. Its extended honeycomb network is the basic building block of other important allotropes; it can be stacked to form 3D graphite, rolled to form 1D nanotubes, and wrapped…
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Graphene sheets offer extraordinary electronic, thermal and mechanical properties and are expected to find a variety of applications. A prerequisite for exploiting most proposed applications for graphene is the availability of processable graphene…
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This new and innovative text helps students develop a deeper understanding of organic chemistry. It treats the subject as a coherent whole, complete with numerous logical connections, consequences, and an underlying structure and "language."…
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This review on graphene, a one atom thick, two-dimensional sheet of carbon atoms, starts with a general description of the graphene electronic structure as well as a basic experimental toolkit for identifying and handling this material. Owing to the…
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The surface area of a single graphene sheet is 2630 m(2)/g, substantially higher than values derived from BET surface area measurements of activated carbons used in current electrochemical double layer capacitors. Our group has pioneered a new…
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Chemistry is dominated by the study of species in solution. Although any liquid may be used as a solvent, relatively few are in general use. However, as the introduction of cleaner technologies has become a major concern throughout both industry and…
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Graphene based two-dimensional carbon nanostructures serve as a support to disperse catalyst nanoparticles. Reduced graphene oxide is used as a support to anchor semiconductor and metal nanoparticles. Such a design strategy would enable the…
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Rhodopsin, the pigment responsible for vision in animals, insect and fish is a typical G protein (guanyl-nucleotide binding protein) consisting of seven transmembrane alpha helices and their interconnecting extramembrane loops. In the case of bovine…
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The outstanding electrical, mechanical and chemical properties of graphene make it attractive for applications in flexible electronics. However, efforts to make transparent conducting films from graphene have been hampered by the lack of efficient…
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Post DocUniversité des Sciences et Technologies de Lille -
Ph.D. StudentMeerholz Group, Departent of Chemistry, University of Cologne -
ProfessorIbnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia -
Researcher (at an Academic Institution)Eternal University -
Researcher (at an Academic Institution)Tunis, Tunisia