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Showing 1 to 20 of 24 for “"Borates"”.
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Molten Alkali Metal Borates for High Temperature Carbon Capture
… and designs systems for molten alkali metal borates, a novel class of material which are positioned to benefit from both liquid phase and high temperature operation. Material and chemical properties relating to CO2 capture were explored, the ability to capture multiple acid gasses …
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The Synthesis, Structure, And Properties Of Group 2 Poly(pyrazolyl)borates And Their Use For The Atomic Layer Deposition Of Group 2 Borates
<p>A series of heavy alkaline earth complexes containing TpR2-based ligands has been synthesized, structurally characterized, and their properties were investigated. Salt metathesis routes involving MI2 (M = Ca, Sr, Ba) with either KTpEt2 or KTpnPr2 afforded MTpEt22 or MTpnPr22 in good to moderate …
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Structural Studies of Penetrated Ion Pairs Using Chiral Cyanine Borates
An induced circular dichroism (CD) spectrum is observed for 1,1$\sp\prime,3,3,3\sp\prime,3\sp\prime$-hexamethyl-9-phenyl-indo-carbocyanine, 1,1$\sp\prime$-diethyl-2,2$\sp\prime$-cyanine, 1,1$\sp\prime$-di-(3,5-di-tert-butyl)benzyl-2,2$\sp\prime$-cyanine, or …
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The Effect of Borates and Other Inhibitors on Enzymatic Browning in Appletissue
Made available in DSpace on 2014-12-05T19:06:45Z (GMT). No. of bitstreams: 1 5900473.pdf: 3744347 bytes, checksum: 048f4477d59f061bb7bbeb314420c72b (MD5) Previous issue date: 1958
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Polar Tris(pyrazolyl)borates for the modeling of Zinc metalloenzymes in aqueous solution
… precursors of the corresponding tris(pyrazolyl)borates TpC(O)OR,Me. <br>The new 4'-pyridyl substituted KTp4'Py,Me and KTp4'(6'Me)Py,Me were synthesized, the former being the first example of water soluble tris(pyrazolyl)borate able to build a hydrophobic cavity around zinc. The zinc halide, …
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The Efficacy of a Borate and Penetrating Oil Preservative Combination for the Conservation of Exterior Wood
This study evaluates aqueous diffusible borates in combination with a penetrating oil and a nano-size iron oxide and zinc oxide based wood preservative system for cypress (Taxodium distichum) and western redcedar (Thuja plicata). The objectives are as follows, 1) To test the efficacy and …
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Molten Alkali Metal Borate/Carbonate Salts for High Temperature CO₂ Capture and Electrochemical Conversion
… (500-650°C). First, we examine molten alkali borates as a novel hybrid sorbent for CO2 conversion. Alkali borates have been demonstrated as a promising high-temperature molten salt sorbent for acid gas separations, but prior studies have focused on regeneration through steam sweeping or …
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Electron transfer in cyanine borate ion pairs
… to learn more about both the dyes and the borates.(DIAGRAM, TABLE OR GRAPHIC OMITTED...PLEASE SEE DAI)
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Phosphate-doped borosilicate enamel coating used to protect reinforcing steel from corrosion
… network is repolymerized and tetrahedral borates are converted to trigonal borates, because the phosphate anions scavenge sodium ions from the borosilicate network. The addition of Al<sub>2</sub>O<sub>3</sub> significantly increases the solubility of P<sub>2</sub>O<sub>5</sub> due to the …
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Enantioselective nickel catalysis : exploiting activated C-H bonds
… alkynylmetal species, generated in situ, alkynyl borates were found to cross-couple with allylic chlorides to furnish product with the best enantioselectivity (enantiomeric excess ca. 70%), however in low yield.
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Electrochemistry of systems containing aluminum phosphate dissolved in fused borate and phosphate mixtures
… of aluminum obtained. Investigation of the borates-phosphate mixtures comprised determination of a "fluid range"-composition diagram of the sodium oxide-lithium oxide-boric oxide system. The "fluid range" is a temperature range from an upper value at which, on cooling, liquid becomes …
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Aminopyridinato-Ligand-Stabilized Lanthanoid Complexes: Synthesis, Reactivity, Ethylene and Isoprene Polymerization
… polymerization of isoprene after activation with borates. We could even obtain isotactically enriched 3,4-polyisoprene through appropriate choice of the polymerization conditions (cocatalyst, polymerization temperature). The aminopyridinate-stabilized diamide of scandium can polymerize isoprene in …
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Xanthene/Benzoxanthene Dyes: Novel Synthetic Metholologies, Applications in Molecular Recognition, Cellular Imaging and the Design of a Tunable White (RGB) Light Emitter
… 1,2-alkyl shift involving R-haloalkyl borates discovered by Matteson in 1963.</p>
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Aspects of the chemistry of titanium dioxide in fused salt solvents
… of titanium dioxide in fused alkali metal borates has been made, with the emphasis on the ability of the alkali borate melts to dissolve TiO2 and subsequently crystallize TiO2 and/or complex alkali metal titanates. The preparation and properties of potassium titanates with K2O/TiO2 mol …
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Pressureless Densification of Alumina - Titanium Diboride Ceramic Matrix Composites
… Al₂O₃ with TiB2 along their interfaces. Aluminum borates have been observed to form Al₁₈B₄O₃₃ (s) + B₂O₃ (l) at temperatures above 1000°C. The RCDM for densification of SHS produced Al₂O₃/TiB₂ was found to be liquid phase diffusion with volume diffusion also likely being active during …
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Energy Level Alignment in Hybrid Bulk Heterojunctions and New Redox Mediators for Quantum Dot Solar Cells
… V were achieved by a series of Mn poly(pyrazolyl)borates, with reduction potentials ~0.51 V vs Ag/AgCl. Back electron transfer rates were slower than Co(bpy)3, where bpy = 2,2'-bipyridine. This is indicative of a large barrier to recombination imposed by spin-crossover in these complexes. By …
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Low-dimensional and frustrated magnetism in complex lanthanide oxides
… properties. First, the lanthanide calcium oxyborates Ca4LnO(BO3)3, Ln = Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, were synthesised using solid-state ceramic methods. In Ca4LnO(BO3)3 the magnetic Ln3+ ions form quasi-one-dimensional chains. The crystal structure was investigated using powder …
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N-Ligand Stabilized Lanthanide Complexes
… abstracting one of the two alkyls using ammonium borates. Based on the appropriate steric bulk of the used aminopyridinato ligand these yttrium cations show very high ethylene polymerization activity at 80 °C in the presence of small amounts of aluminium alkyls. During these polymerizations a …
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Advanced Materials for High-Energy Rechargeable Batteries: Borate Polyanion Cathodes and Silicon Anodes
… families were systematically explored: orthoborates (M₃(BO₃)₂), pyroborates (M₂B₂O₅), and ludwigites (M₃BO₅). In Chapter 3, a detailed overview of the solid-state synthesis approaches is presented, including ball-milling, thermal treatment strategies, and the challenges encountered in …
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New Developments in the Crystal Chemistry of Selected Borophosphates and Phosphates
… This kind of oligomer was already predicted for borates but was never observed. By this, CsSc[B2P3O11(OH)3] is a special compound with regard to the structural building principles of borates and borophosphates. The significant differences in the crystal structures of MISc[BP2O8(OH)] (MI = K, Rb) …
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