HYDROTHERMAL SYNTHESIS AND CHARACTERIZATION OF
... “If I were a photon roaming freely in the universe, possibly I would desire for my way to be through a crystal. That place could be my paradise: a perfect symmetry that would not permit me to get confused my path, a dazzling brilliance which would allow me to put my very existence in a definitive ma ...
... “If I were a photon roaming freely in the universe, possibly I would desire for my way to be through a crystal. That place could be my paradise: a perfect symmetry that would not permit me to get confused my path, a dazzling brilliance which would allow me to put my very existence in a definitive ma ...
The Crystal Structure of a Fusagenic Sperm Protein Reveals
... The structure of the pH 3 crystal form was determined by molecular replacement using the pH 9.5 crystal form as a search model. The program AMoRe (28) gave one clear solution with a correlation coefficient of 25.9 after a crossrotation function was performed in the resolution range of 12.0-3.5 Å. A ...
... The structure of the pH 3 crystal form was determined by molecular replacement using the pH 9.5 crystal form as a search model. The program AMoRe (28) gave one clear solution with a correlation coefficient of 25.9 after a crossrotation function was performed in the resolution range of 12.0-3.5 Å. A ...
Chemistry 2 Higher revision mark scheme
... * products correct in every detail if the spectator ions are sown then (1) mark should be credited but only if they are shown correctly on both sides e.g. Mg + 2H+ + 2CI- → Mg2+ + 2CI- + H2 ...
... * products correct in every detail if the spectator ions are sown then (1) mark should be credited but only if they are shown correctly on both sides e.g. Mg + 2H+ + 2CI- → Mg2+ + 2CI- + H2 ...
The birth of topological insulators
... of topological insulator behaviour in Bi2Se3 and Bi2Te3 (refs 12–14). These ‘next-generation’ materials both show topological insulator behaviour up to higher temperatures than does the original material (BixSb1−x), with bulk bandgaps of more than 0.1 eV, and have the simplest surface state that is ...
... of topological insulator behaviour in Bi2Se3 and Bi2Te3 (refs 12–14). These ‘next-generation’ materials both show topological insulator behaviour up to higher temperatures than does the original material (BixSb1−x), with bulk bandgaps of more than 0.1 eV, and have the simplest surface state that is ...
The birth of topological insulators
... of topological insulator behaviour in Bi2Se3 and Bi2Te3 (refs 12–14). These ‘next-generation’ materials both show topological insulator behaviour up to higher temperatures than does the original material (BixSb1−x), with bulk bandgaps of more than 0.1 eV, and have the simplest surface state that is ...
... of topological insulator behaviour in Bi2Se3 and Bi2Te3 (refs 12–14). These ‘next-generation’ materials both show topological insulator behaviour up to higher temperatures than does the original material (BixSb1−x), with bulk bandgaps of more than 0.1 eV, and have the simplest surface state that is ...
university of oslo
... In 1972 Per Kofstad published his "Non-stoichiometry, diffusion and electrical conductivity in binary metal oxides". It has been a popular textbook in defect chemistry of oxides worldwide, not least because it contained a comprehensive review of defect structure and defect-related properties of all ...
... In 1972 Per Kofstad published his "Non-stoichiometry, diffusion and electrical conductivity in binary metal oxides". It has been a popular textbook in defect chemistry of oxides worldwide, not least because it contained a comprehensive review of defect structure and defect-related properties of all ...
Chem I Review Part 2
... A. as electrons jump from lower energy levels to higher levels. B. as the atoms condense from a gas to a liquid. C. as electrons jump from higher energy levels to lower levels. D. as they are heated and the solid melts to form a liquid. E. as the electrons move about the atom within an orbit. ...
... A. as electrons jump from lower energy levels to higher levels. B. as the atoms condense from a gas to a liquid. C. as electrons jump from higher energy levels to lower levels. D. as they are heated and the solid melts to form a liquid. E. as the electrons move about the atom within an orbit. ...
Mechanistic Studies on the Galvanic Replacement Reaction
... the template, typically polymeric or silica beads. For example, Halas and co-workers have reported that Au nanoshells of different thicknesses could be grown on 120-nm silica spheres via a chemical reduction process.18 Together with a number of studies that have also demonstrated formation of metal ...
... the template, typically polymeric or silica beads. For example, Halas and co-workers have reported that Au nanoshells of different thicknesses could be grown on 120-nm silica spheres via a chemical reduction process.18 Together with a number of studies that have also demonstrated formation of metal ...
Complex defects
... which dissolve protons and become proton conductors at high temperatures. A revision of the book from 1972 as such is thus unrealistic in many respects. In the early 1990s Kofstad decided to author a new text that represented a development of the general and theoretical first part of the former book ...
... which dissolve protons and become proton conductors at high temperatures. A revision of the book from 1972 as such is thus unrealistic in many respects. In the early 1990s Kofstad decided to author a new text that represented a development of the general and theoretical first part of the former book ...
Title Photo-Induced Electron Transfer Between a Reactant Molecule
... 2.2. Photo-activation of alcohols and amines on Nb2O5 2.2.1. Photo oxidation of alcohols and amines with molecular oxygen Catalytic alcohol oxidation to carbonyl compounds is one of the most important chemical transformations used in the industrial chemistry and in organic syntheses [51-53]. Oxidati ...
... 2.2. Photo-activation of alcohols and amines on Nb2O5 2.2.1. Photo oxidation of alcohols and amines with molecular oxygen Catalytic alcohol oxidation to carbonyl compounds is one of the most important chemical transformations used in the industrial chemistry and in organic syntheses [51-53]. Oxidati ...
oxidation–reduction reaction
... compound is the number of electrons lost or gained by the atom when it forms ions. • Oxidation numbers are tools that scientists use in written chemical equations to help them keep track of the movement of electrons in a redox reaction. ...
... compound is the number of electrons lost or gained by the atom when it forms ions. • Oxidation numbers are tools that scientists use in written chemical equations to help them keep track of the movement of electrons in a redox reaction. ...
L. T. Zhuravlev, The surface chemistry of amorphous silica
... A review article is presented of the research results obtained by the author on the properties of amorphous silica surface. It has been shown that in any description of the surface silica the hydroxylation of the surface is of critical importance. An analysis was made of the processes of dehydration ...
... A review article is presented of the research results obtained by the author on the properties of amorphous silica surface. It has been shown that in any description of the surface silica the hydroxylation of the surface is of critical importance. An analysis was made of the processes of dehydration ...
Development of Tire Side Force Model Based on "Magic Formula
... This can be measured when the work being done by the tire is other than zero. (This corresponds to the state where the tire is warming up.) So, the sequence is, for example, the period when measuring parameter κ between −22 and −2 seconds in Fig. 1. Figure 3 shows the results calculated for paramete ...
... This can be measured when the work being done by the tire is other than zero. (This corresponds to the state where the tire is warming up.) So, the sequence is, for example, the period when measuring parameter κ between −22 and −2 seconds in Fig. 1. Figure 3 shows the results calculated for paramete ...
Word
... In the previous study, L-lysine was observed on the surface of γ-alumina and on kaolinite, after treatment with 0.02 M lysine (at pH 9.8, the pH obtained by dissolving the lysine in 0.01 M HClO4, with no further manipulation). The samples were centrifuged to remove excess solution but not washed, th ...
... In the previous study, L-lysine was observed on the surface of γ-alumina and on kaolinite, after treatment with 0.02 M lysine (at pH 9.8, the pH obtained by dissolving the lysine in 0.01 M HClO4, with no further manipulation). The samples were centrifuged to remove excess solution but not washed, th ...
Effect of Potassium on Sol-Gel Cerium and Lanthanum Oxide
... of diesel fuel that remains in the filters of vehicle engines, causing serious health problems [9]. An alternative is to burn this particulate material [7] [9]. The catalyst deposited in the ceramic filters could oxidize the soot, reducing its emission into the atmosphere. However, the temperatures ...
... of diesel fuel that remains in the filters of vehicle engines, causing serious health problems [9]. An alternative is to burn this particulate material [7] [9]. The catalyst deposited in the ceramic filters could oxidize the soot, reducing its emission into the atmosphere. However, the temperatures ...
Chapter 8 Concepts of Chemical Bonding
... Which of these molecules has the same number of shared electron pairs as unshared electron pairs? (a) HCl, (b) H2S, (c) PF3, (d) CCl2F2 (e) Br2. Practice Exercise 2 Compare the Lewis symbol for neon with the Lewis structure for methane, CH4. How many valence electrons are in each structure? How many ...
... Which of these molecules has the same number of shared electron pairs as unshared electron pairs? (a) HCl, (b) H2S, (c) PF3, (d) CCl2F2 (e) Br2. Practice Exercise 2 Compare the Lewis symbol for neon with the Lewis structure for methane, CH4. How many valence electrons are in each structure? How many ...
Preparation and Morphology Studies of Nano Zinc Oxide Obtained
... Zinc oxide (ZnO) has considerable customary attention due to its unique morphology and dimension-dependent optoelectronic properties [1]. It has special properties, such as high chemical activity, and novel optical, mechanical, electromagnetic, thermodynamic and electrodynamic properties, and displa ...
... Zinc oxide (ZnO) has considerable customary attention due to its unique morphology and dimension-dependent optoelectronic properties [1]. It has special properties, such as high chemical activity, and novel optical, mechanical, electromagnetic, thermodynamic and electrodynamic properties, and displa ...
Soft X-ray spectroscopy study of the electronic structure
... near-edge structure (XANES) and x-ray absorption extended fine structure (EXAFS) spectra from bulk and nanocrystalline iron oxides to investigate the chemical oxidation state of iron and the local coordination geometry, respectively. The data were acquired at beamline 10-2 at the Stanford Synchrotro ...
... near-edge structure (XANES) and x-ray absorption extended fine structure (EXAFS) spectra from bulk and nanocrystalline iron oxides to investigate the chemical oxidation state of iron and the local coordination geometry, respectively. The data were acquired at beamline 10-2 at the Stanford Synchrotro ...
Mapping out the structural changes of natural and pretreated plant
... Background: Enzymatic hydrolysis of lignocellulosic biomass (mainly plant cell walls) is a critical process for biofuel production. This process is greatly hindered by the natural complexity of plant cell walls and limited accessibility of surface cellulose by enzymes. Little is known about the plan ...
... Background: Enzymatic hydrolysis of lignocellulosic biomass (mainly plant cell walls) is a critical process for biofuel production. This process is greatly hindered by the natural complexity of plant cell walls and limited accessibility of surface cellulose by enzymes. Little is known about the plan ...
Characterization of various zinc oxide catalysts
... the intensity of the main ZnO lines. This indicates that the Cr2O3 particles may block the bentonite lamella and are probably trapped in the ZnO lattice. For the calcined ZC-catalyst, ZC*, the intensity of the main ZnO lines sharply increased, in addition to the appearance of new lines at 2 angles: ...
... the intensity of the main ZnO lines. This indicates that the Cr2O3 particles may block the bentonite lamella and are probably trapped in the ZnO lattice. For the calcined ZC-catalyst, ZC*, the intensity of the main ZnO lines sharply increased, in addition to the appearance of new lines at 2 angles: ...
Low-energy electron diffraction
Low-energy electron diffraction (LEED) is a technique for the determination of the surface structure of single-crystalline materials by bombardment with a collimated beam of low energy electrons (20–200 eV) and observation of diffracted electrons as spots on a fluorescent screen.LEED may be used in one of two ways: Qualitatively, where the diffraction pattern is recorded and analysis of the spot positions gives information on the symmetry of the surface structure. In the presence of an adsorbate the qualitative analysis may reveal information about the size and rotational alignment of the adsorbate unit cell with respect to the substrate unit cell. Quantitatively, where the intensities of diffracted beams are recorded as a function of incident electron beam energy to generate the so-called I-V curves. By comparison with theoretical curves, these may provide accurate information on atomic positions on the surface at hand.↑