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Showing papers on "Inorganic compound published in 2001"


Journal ArticleDOI
TL;DR: In this paper, the coordination ability of carboxylate under hydrothermal conditions is different from that under mild ones, where the organic acts as a template during the condensation of the oxygen−metal networks, whereas under room temperature conditions, they are unidentate and infinite structures are obtained via the bridging role of the ligand.
Abstract: Hydrothermal technique was used together with a room-temperature process for the synthesis of cobalt−succinate compounds. Four structures are described for two new compounds: K2Co(C4H4O4)2 and Co(H2O)4(C4H4O4). Whatever the solution conditions, carboxylate ligands, which possess a strong nucleophilic character, coordinate each metal ion. However, the coordination ability of carboxylate under hydrothermal conditions is different from that under mild ones. For high-temperature phases, carboxylic groups are multidentate and the organic acts as a “template” during the condensation of the oxygen−metal networks, whereas under room temperature conditions, they are unidentate and infinite structures are obtained via the bridging role of the ligand.

189 citations


Journal ArticleDOI
TL;DR: In this paper, a ring-opening polymerization of cyclic metavanadates arising from co-ordination expansion favored by protonation or vanadium reduction was proposed.

69 citations


Journal ArticleDOI
TL;DR: In this paper, the effect of reaction parameters on the synthesis and growth of crystalline product in a high yield was investigated by using single-crystal X-ray diffraction technique.

45 citations


Journal ArticleDOI
TL;DR: In this paper, the sputtering yield of the chalcogen X is higher than that of the transition metal M in transition metal dichal cogenide compounds MX 2 (M=W, Mo; X=Te, Se, S) to obtain variations of stoichiometry.

41 citations


Patent
04 Oct 2001
TL;DR: In this paper, an independent claim is also included for aqueous composition (I) for pretreating metal surface before further coating or treatment, especially in the case of strip or sections of strip, as determined by peeling a definite area of the cured film and weighing.
Abstract: Surface coating of metal comprises pretreatment with an aqueous composition (I), which can be (largely) free from chromium(VI) (Cr-VI) compounds, before applying other coatings and optionally shaping. (I) contains organic film-forming agent(s) containing water-soluble or -dispersible polymer(s), inorganic compound(s) in particles (II) and lubricant(s) or/and organic corrosion inhibitor(s). Surface coating of metal, especially aluminum (Al), iron (Fe), copper (Cu), magnesium (Mg), nickel (Ni), titanium (Ti), tin (Sn), zinc (Zn) and alloys of these, comprises pretreatment with an aqueous composition (I), which can be largely or completely free from chromium(VI) (Cr-VI) compounds, before applying coatings and optionally shaping, especially in the case of strip or sections of strip. (I) contains organic film-forming agent(s) containing water-soluble or -dispersible polymer(s) with acid number 5-200, inorganic compound(s) in particles (II) of average diameter 0.005-0.3 micro m (scanning electron microscope) and lubricant(s) or/and organic corrosion inhibitor(s). It may also contain organic solvent(s), silane or/and siloxane, cross-linker, especially based on a basic compound, and/or Cr-VI compound(s). The clean metal surface is contacted with (I) to form a film containing particles, which is then dried and optionally cured to give a 0.01-10 micro m thick film, as determined by peeling a definite area of the cured film and weighing. An Independent claim is also included for aqueous composition (I) for pretreating metal surface before further coating or treatment.

33 citations


Patent
28 Sep 2001
TL;DR: In this article, a catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises a specific organometallic complex having a neutral multidentate ligand having a tripod structure.
Abstract: A catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises (i) a specific organometallic complex having a neutral multidentate ligand having a tripod structure, (ii) an alkylaluminoxane, and an optional ingredient selected from: (iii) a halogenated inorganic compound, (iv) a specific alkyl group-containing compound, (v) a combination of a halogenated inorganic compound with a specific alkyl group-containing compound, (vi) an amine compound and/or an amide compound, and (vii) a combination of an amine compound and/or an amide compound with a specific alkyl group-containing compound.

30 citations


Patent
06 Sep 2001
TL;DR: A diene rubber/inorganic compound composite is defined in this paper as a mixture of rubber, silica, and at least one inorganic compound selected from the compound represented by the formula (I): wM. xSiOy. zH2O, wherein M represents a metal, a metal oxide or a metal hydroxide of at least 1 metal selected from among Al, Mg, Ti and Ca, and w, x, y, y and z are a number of 1 to 5.
Abstract: A diene rubber/inorganic compound composite which comprises a diene rubber, silica and at least one inorganic compound selected from the compound represented by the formula (I): wM . xSiOy . zH2O, wherein M represents a metal, a metal oxide or a metal hydroxide of at least one metal selected from among Al, Mg, Ti and Ca, and w, x, y and z are a number of 1 to 5, a number of 0 to 10, a number of 2 to 5 and a number of to 10, respectively; and a rubber composition comprising the composite and a crosslinking agent.

30 citations


Journal ArticleDOI
Kai-Xue Wang1, Jihong Yu1, Peng Miao1, Yu Song1, Jiyang Li1, Zhan Shi1, Ruren Xu1 
TL;DR: A new layered aluminophosphate with an Al/P ratio of unity, designated AlPO-CJ9 (CJ 9: China, Jilin University, number 9), has been synthesized hydrothermally as mentioned in this paper.
Abstract: A new layered aluminophosphate with an Al/P ratio of unity, designated AlPO-CJ9 (CJ9: China, Jilin University, number 9), has been synthesized hydrothermally. The crystalline product is characterized by powder and single-crystal X-ray diffraction (XRD), FT-IR and thermogravimetric analyses. The structure of AlPO-CJ9 contains [Al2P2O8(OH)2]2− macroanionic sheets stacked in an AAAA sequence. The inorganic layer based on a 3 × 4 × 6 net is featured by a type of chain built up by corner-sharing three-membered rings. The nonbonding interaction energies (Einter), including H-bonding, van der Waals and Coulombic interactions between the inorganic layer and several organic amines are studied, which are valuable in evaluating the templating abilities of the organic templates.

28 citations


Journal ArticleDOI
TL;DR: In this paper, structural features are reported for the optimized geometries performed at the B3LYP density functional level of theory, using ECPs and a basis set augmented with one set of f functions.

22 citations


Journal ArticleDOI
TL;DR: An open-framework zinc phosphate, [C6N4H22][Zn6PO4)4(HPO4)2] (I), with alternating inorganic and organic layers has been synthesized hydrothermally from a starting mixture of ZnO, HCl, H3PO4, H2C2O4, and triethylenetetramine.

21 citations


Journal ArticleDOI
TL;DR: The enthalpies of CoWO 4 and NiWO4 have been determined by direct synthesis calorimetry at 1473±2 K as mentioned in this paper, where the results are compared with the data available in the literature.

Patent
12 Apr 2001
TL;DR: A light duty liquid includes a paraffin sulfonate, an alpha olefin sulfonates, a sultaine surfactant, a magnesium containing inorganic compound, and water.
Abstract: A light duty, liquid includes a paraffin sulfonate, an alpha olefin sulfonate, a sultaine surfactant, a magnesium containing inorganic compound, and water.

Journal ArticleDOI
Zhaohui Chen1, Ying Ma1, Xintong Zhang1, Bin Liu1, Jiannian Yao1 
TL;DR: Results show that the layer-by-layer self-assembly of PW(12) and 1,10-DAD leads to a well-ordered superlattice-layered structure with a d-spacing of 3.19 nm, which exhibits extremely exciting photochromic properties.

Patent
15 Jun 2001
TL;DR: In this paper, the problem of providing an oxide photocatalyst material which can exhibit high photocatalysis was solved by using a sol of an inorganic compound, which is then solidified and heat-treated to grow titanium oxide crystals on the nuclei.
Abstract: PROBLEM TO BE SOLVED: To provide an oxide photocatalyst material which can exhibit high photocatalysis. SOLUTION: Crystal nuclei are introduced into or coated with a sol of an inorganic compound. The sol is then solidified and heat-treated to grow titanium oxide crystals 3 on the nuclei 2. The titanium oxide crystals 3 grown on the nuclei 2 have a columnar form to realize a highly active photocatalytic function.

Patent
14 Jun 2001
TL;DR: In this paper, a thin film forming method capable of forming a ferroelectric thin film suitable for an infrared ray detecting element with high detecting sensitivity was proposed, in which the organic polymer compound and inorganic compound turning to material of a ferromagnetic thin film are mixed by using solvent to the organic polymers and filtered by using a filter.
Abstract: PROBLEM TO BE SOLVED: To provide a thin film forming method capable of forming a ferroelectric thin film suitable for an infrared ray detecting element with high detecting sensitivity. SOLUTION: Solution wherein organic polymer compound and inorganic compound turning to material of a ferroelectric thin film are mixed by using solvent to the organic polymer compound is filtered by using a filter 102 and accumulated as material solution in a solution reservoir 104. By using pressure of N2 gas, the material solution is spin-coated on a surface of a substrate 200 from a nozzle 110. After that, the substrate 200 is thermally treated in an oxidizing gas atmosphere, the inorganic compound on the substrate is heated and reacted, and a high dielectrics film having a desired texture is formed on the substrate.

Patent
18 Apr 2001
TL;DR: In this paper, a molecule recognition phosphor is formed by chemically immobilizing an anti-hepatitis B virus surface antigen polyclonal antibody in a fine grain shaped phosphor having a rare earth compound as the inorganic fluorescent material in an inside of an inorganic compound such as glass.
Abstract: PROBLEM TO BE SOLVED: To provide a molecule recognition phosphor of which fluorescent intensity is high as compared with a phosphor using organic fluorescent material, and which can exist in a stable condition because inorganic fluorescent material exists in an inside of a matrix of such as an inorganic compound. SOLUTION: The molecule recognition phosphor is formed by chemically immobilizing an anti-hepatitis B virus surface antigen polyclonal antibody in a fine grain shaped phosphor having a rare earth compound as the inorganic fluorescent material in an inside of the inorganic compound such as glass.

Patent
28 Jun 2001
TL;DR: In this paper, the authors proposed a method to provide an organosol of a silica base inorganic compound superior in dispersing stability in an organic solvent, which is called fine silica particles.
Abstract: PROBLEM TO BE SOLVED: To provide an organosol of a silica base inorganic compound superior in dispersing stability in an organic solvent. SOLUTION: The organosol dispersed in the organic solvent is composed of fine silica base inorganic compound particles whose average particle diameter is 2-100 nm and whose surface is modified by a polyalcohol. A part or whole of a silica source for the fine silica base inorganic compound particles is derived from an alkali metal silicate. It is favorable that the fine inorganic compound particles are fine silica particles and are fine silica base compound oxide particles composed of silica and one or two or more kinds of inorganic oxides except silica. COPYRIGHT: (C)2003,JPO

Journal ArticleDOI
TL;DR: A simple rule has been proposed for the dependence of fragment pattern appearance on the electronegativity (electron affinity), which can be easily obtained from handbooks, and the valence of positive and negative ions in these compounds.
Abstract: The role of the electronegativity of atoms in inorganic compounds in TOF-SIMS fragmentation is discussed. From a study of approximately 30 inorganic compounds--chlorides, oxides, nitrates, and sulfates--a simple rule has been proposed for the dependence of fragment pattern appearance on the electronegativity (electron affinity), which can be easily obtained from handbooks, and the valence of positive and negative ions in these compounds. TOF-SIMS measurements of metal and alloy surfaces, should be corrected for the ionization potentials and/or electronegativities of atoms present in surface contaminants.

Patent
28 Jun 2001
TL;DR: In this paper, a method for producing spherical particles with the titanium oxide coating layers is described, which is composed of a process for hydrolysis adding a titanium compound or the titanium compound with an acid or an alkali to a liquid in which the inorganic compound particles are dispersed and for depositing hydrolysate on the surface of the particles, and a process to treat the dispersed liquid with hydrothermal treatment at 80-350 degC.
Abstract: PROBLEM TO BE SOLVED: To provide completely spherical titanium oxide fine particles useful for a catalyst, a catalytic support, an optical catalyst, a makeup material, an optical material, a photoelectric transfer material and a basic material with a photonic crystal layer and the like as their particle diameter variation factor (CV value) is small, and to provide their producing method SOLUTION: The spherical particles with titanium oxide coating layers consist of inorganic compound particles and the titanium oxide coating layers formed on the particles The thickness of the coating layer is 10 nm-10 μm, the average particle diameter of the particles is 01-30 μm and the complete sphericity is 07-10 The method for producing spherical particles with the titanium oxide coating layers is composed of (a)-(c) processes denoted as (a) a process for hydrolysis adding a titanium compound or the titanium compound with an acid or an alkali to a liquid in which the inorganic compound particles are dispersed and for depositing hydrolysate on the surface of the inorganic compound particles, (b) a process to wash the inorganic compound particles from which the hydrolysate is deposited if necessary and (c) a process to treat the dispersed liquid with hydrothermal treatment at 80-350 degC

Patent
21 Aug 2001
TL;DR: In this paper, a method for efficiently manufacturing highly functional activated carbon with a simple structure at a low cost, and to provide an activated carbon manufactured by the method and an electrical double layer capacitance using the activated carbon as an electrode.
Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently manufacturing highly functional activated carbon with a simple structure at a low cost, and to provide an activated carbon manufactured by the method and an electrical double layer capacitance using the activated carbon as an electrode. SOLUTION: The activated carbon having a large specific surface area and a high true specific gravity is obtained by mixing an inorganic compound such as calcium carbonate generating carbon dioxide by the thermal decomposition at <=750 deg.C with palm shell charcoal and heating the mixture to <=750 deg.C at the temperature rising rate of <=10 deg.C/hr. The electrode for the electrical double layer capacitance using the activated carbon has high discharge capacity.

Patent
10 Oct 2001
TL;DR: In this paper, an independent claim is also included for aqueous composition (I) for pretreating metal surface before further coating or treatment, especially in the case of strip or sections of strip, as determined by peeling a definite area of the cured film and weighing.
Abstract: Surface coating of metal comprises pretreatment with an aqueous composition (I), which can be (largely) free from chromium(VI) (Cr-VI) compounds, before applying other coatings and optionally shaping. (I) contains organic film-forming agent(s) containing water-soluble or -dispersible polymer(s), inorganic compound(s) in particles (II) and lubricant(s) or/and organic corrosion inhibitor(s). Surface coating of metal, especially aluminum (Al), iron (Fe), copper (Cu), magnesium (Mg), nickel (Ni), titanium (Ti), tin (Sn), zinc (Zn) and alloys of these, comprises pretreatment with an aqueous composition (I), which can be largely or completely free from chromium(VI) (Cr-VI) compounds, before applying coatings and optionally shaping, especially in the case of strip or sections of strip. (I) contains organic film-forming agent(s) containing water-soluble or -dispersible polymer(s) with acid number 5-200, inorganic compound(s) in particles (II) of average diameter 0.005-0.3 Microm (scanning electron microscope) and lubricant(s) or/and organic corrosion inhibitor(s). It may also contain organic solvent(s), silane or/and siloxane, cross-linker, especially based on a basic compound, and/or Cr-VI compound(s). The clean metal surface is contacted with (I) to form a film containing particles, which is then dried and optionally cured to give a 0.01-10 Microm thick film, as determined by peeling a definite area of the cured film and weighing. An independent claim is also included for aqueous composition (I) for pretreating metal surface before further coating or treatment.

Patent
16 Nov 2001
TL;DR: In this paper, the authors proposed a magnetic recording medium for high density recording, in which an inorganic compound film was used as seed layer, and a magnetic film on which information was recorded and a protective film was laminated on a substrate.
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium for high density recording. SOLUTION: In the magnetic recording medium 5, an inorganic compound film 2 being a seed layer, a magnetic film 3 on which information is recorded and a protective film 4 are laminated on a substrata 1. The inorganic compound film 2 has cylindrical crystalline particles 6 and amorphous grain boundary phases 7 partitioning the particles 6. In the magnetic film 3, magnetic particles 14 are arranged and epitaxially grow on the inorganic compound film 2, so that the particle size and the standard deviation of the inorganic compound film 2 are reflected on the magnetic particles 14 of the magnetic film 3.

Patent
16 Jul 2001
TL;DR: In this article, a zone melting technique was used to recrystallize polycrystalline films into single-crystal thin films (of micrometer thickness) by an electrically heated wire generated a narrow heated or molten zone (0.5-2 mm wide) on the substrate sandwiched between two pieces of glass or indium-tin-oxide-coated glass.
Abstract: Amorphous or polycrystalline films have been recrystallized into single-crystal thin films (of micrometer thickness) by a zone melting technique, in which an electrically heated wire generated a narrow heated or molten zone (0.5-2 mm wide) on the substrate sandwiched between two pieces of glass or indium-tin-oxide-coated glass. The substrate can be either an organic or inorganic compound. When the molten zone was moved slowly (3-120 μm/min) across the layer from one end of the cell to the other, a single-crystal film was produced after a single pass. This technique allows for thin film purification and an improvement in electronic, optical, and optoelectronic properties of the thin film. After this treatment, the steady-state short-circuit photocurrent can be improved by several orders of magnitude. These films are useful in the fields of optics and electronics for improving the performance in devices such as thin-film transistors and organic light-emitting diodes.

Patent
06 Jul 2001
TL;DR: In this article, a low dielectric type insulating material and its manufacturing method in which the material is formed by a thermosetting resin was improved in an organic/inorganic compound type material in which a high molecular compound and an inorganic compound are combined.
Abstract: PROBLEM TO BE SOLVED: To provide a low dielectric type insulating material and its manufacturing method in which the material is formed by a thermosetting resin wherein dielectric property to become the insulative standard of the insulating material has been improved in an organic/inorganic compound type material in which a high molecular compound and an inorganic compound are combined. SOLUTION: A stratified clay compound in which the quaternary ammonium salts added of an active chemical bond or a functional group exist between layers is mixed with the thermosetting resin, thereby reaction formation with the resin is made or interaction is added, and a silicate layer of the stratified clay compound is made to be homogeneously dispersed in the resin, and a superior dielectric property in a high-temperature range is exhibited.

Patent
14 Feb 2001
TL;DR: In this article, an oxidic nanocrystal production process by organometallic complex or volatile inorganic compound vapor decomposition in a low pressure hot reactor zone (18) in the presence of reactive gas is described.
Abstract: Oxidic nanocrystal production, by organometallic complex or volatile inorganic compound vapor decomposition in a low pressure hot reactor zone (18) in the presence of reactive gas, is new. An oxidic nanocrystal production process comprises (a) evaporating organometallic complexes or volatile inorganic compounds of host lattice ions in a vaporizer (12); (b) transporting the resulting gas phase by a carrier gas into a hot zone (18) of a reactor (16) supplied with reactive gas; and (c) decomposing the complexes or compounds in the hot zone at 1-1000 mbar to form oxidic nanocrystals which are deposited in an adsorption trap (20). Independent claims are also included for the following: (i) apparatus for carrying out the above process; and (ii) a phosphor comprising a rare earth metal-activated host lattice of especially Y, Gd, Mg, Mg, Ca, Ba and/or Al oxide or oxysulfide nanocrystals and exhibiting little agglomeration, a mean particle size of 1-20 nm and a cubic crystalline structure. Preferred Features: The hot zone (18) is also supplied with evaporated organometallic complexes or volatile inorganic compounds of dopant ions.

Patent
28 Jun 2001
TL;DR: In this article, an ionic-conductive organic-inorganic compound electrolyte consisting of meso-porous material as an inorganic compound, polyalkylene oxide as a polymeric compound, and a complex reaction product of an alkali metal salt as the salt of an electrolyte was proposed.
Abstract: PROBLEM TO BE SOLVED: To attain conductivity enough to allow use for a battery, a sensor or the like. SOLUTION: This ionic-conductive organic-inorganic compound electrolyte comprises a meso-porous material as an inorganic compound, a polyalkylene oxide as a polymeric compound, and a complex reaction product of an alkali metal salt as the salt of an electrolyte. The meso-porous material is zeolite or a laminated clay mineral. A composition of the complex reaction product contains 1: (0.2-5) of weight ratio of porous material to the polyalkylene oxide, and 0-twenty several % of the alkali meatl salt. The conductivity exhibits 10 -3 S/cm or more at ambient temperature. COPYRIGHT: (C)2003,JPO

Patent
22 Jun 2001
TL;DR: In this paper, a polymer composition consisting of an inorganic compound the surface of which is coated with a silicon-containing compound, a functionality endower, and a polymer, is characterized by having an average particle size of >= 1 nm and < 1,000 nm.
Abstract: PROBLEM TO BE SOLVED: To obtain a polymer composition excellent in mechanical strengths, flame resistance and extrusion stability (or stability in quality). SOLUTION: The polymer composition consists of (A) an inorganic compound the surface of which is coated with a silicon-containing compound, (B) a functionality endower, and (C) a polymer, and the inorganic compound (A) is characterized by having an average particle size of >=1 nm and <1,000 nm.

Journal ArticleDOI
TL;DR: In this article, the inorganic compound Cu(NC5H5)4NbOF5 is used to demonstrate that solid solution symmetry reduction depends on molecular recognition of the guest species at crystal growth faces.
Abstract: Organic chromophores crystallizing in nonpolar space groups (P1) have been converted to polar structures (P1) by solid solution symmetry reduction to produce materials with measurable SHG signals. Here, the inorganic compound Cu(NC5H5)4NbOF5 is used to demonstrate that solid solution symmetry reduction depends on molecular recognition of the guest species at crystal growth faces. In the solid solution Cu(NC5H5)4[(NbOF5)1-x(WO2F4)x] (0 ≤ x ≤ 1) the [WO2F4]2- guest molecular ions disrupt the local symmetry, but owing to the lack of recognition of guest anions at the crystal growth surfaces, the full three-dimensional structure retains the host's symmetry.

Patent
27 Feb 2001
TL;DR: In this paper, a packing material consisting of a first inorganic compound 11 which consists of hydroxy apatite, etc., having the good compatibility in the living body and good ambient osteogenesis and a second inorganic compounds 12 which consist of calcium pyrophosphate, etc, having no toxicity in the live body and having high absorbability.
Abstract: PROBLEM TO BE SOLVED: To provide a packing material which has excellent biocompatibility, is easily workable to a desired shape, accelerates osteogenetic ability and is easily absorbed and replaced in the bone. SOLUTION: This packing material contains a first inorganic compound 11 which consists of hydroxy apatite, etc., having the good compatibility in the living body and good ambient osteogenesis and a second inorganic compound 12 which consists of calcium pyrophosphate, etc., having no toxicity in the living body and having high absorbability. The content ratio of these compounds is 1 to 10000 vol.% first inorganic compound to 100 vol.% second inorganic compound. The first inorganic compound 11 is dispersed into the second inorganic compound 12 or the second inorganic compound 12 exists in the contact parts among the particles of the first inorganic compound 11 or the second inorganic compound 12 exists within the particles of the first inorganic compound 11.

Journal ArticleDOI
TL;DR: In this article, the partial enthalpy of mixing in the eight component system (Ag-Bi-Cd-Ga-In-Pb-Sn-Zn) was investigated.
Abstract: We investigated the partial enthalpy of mixing in the eight component system (Ag-Bi-Cd-Ga-In-Pb-Sn-Zn), calculated the solubility of Anthracene in a seven component organic solvent and studied the properties of n-alkanes with 20 to 42 carbon atoms. In systems with 8 components, we have 28 binary interaction parameters: thus uncertainty in one, two or three parameters affects the calculated values only slightly. In the inorganic system, adding Ag to the seven component systems changes the partial enthalpies at the center of gravity of the components slightly. In the solubility data, one cannot differentiate between two significantly different interaction parameters. From the fusion properties of the n-alkanes and binary phase diagrams, the solidification behavior of diesel fuels could be explained.