Class / Patent application number | Description | Number of patent applications / Date published |
423604000 | Group IB metal (Cu, Ag, or Au) | 12 |
20080311031 | Methods For Production of Metal Oxide Nano Particles With Controlled Properties, and Nano Particles and Preparations Produced Thereby - The invention provides a method for the formation of small-size metal oxide particles, comprising the steps of a) preparing a starting aqueous solution comprising at least one of metallic ions and complexes thereof, at a concentration of at least 0.1 % w/w of the metal component; b) maintaining the solution at a temperature lower than 50° C. for a retention time in which hydrolysis takes place, the extent of the hydrolysis being sufficient to produce O.1 mmol protons per mmol of metal present in solution, wherein the time does not exceed 14 days, to form a system containing a retained solution; and c) adjusting the conditions in the system by at least one of the steps of: i) heating the retained solution to elevate the temperature thereof by at least 1° C.; ii) changing the pH of the retained solution by at least 0.1 units; and iii) diluting the retained solution by at least 20% whereby there are formed particles, wherein the majority of the particles formed are between about 2 nm and about 500 nm in size. | 12-18-2008 |
20090068089 | Novel method of manufacture of silver oxide nano particles - We disclose a method of manufacture of silver oxide nano metal particles of 2-10 mm size with specific phase and geometry in their exterior and interior making them suitable for use as potent antimicrobial and styptic agents. | 03-12-2009 |
20100124532 | Method For Preparing Copper Oxide Nano-Particles - A method for manufacturing the copper oxide nano-particles is provided. The method includes the steps of providing a copper-contained salt solution, providing a alkaline solution, mixing the copper-contained salt solution and the alkaline solution by using a high-gravity force provided by a high-gravity device to generate a slurry, removing the solvent in the slurry to obtain a precursor of the copper oxide nano-particles, and calcining the precursor to produce the copper oxide nano-particles. | 05-20-2010 |
20100247422 | PROCESS FOR PREPARATION OF SILVER OXIDE - The present invention relates to a process for preparation of silver oxide with various shape and size using a silver complex compound having a special structure. The present invention includes 1) step of preparing a precursor solution including a silver complex compound obtained by reacting a silver compound with one or more mixture selected from the group consisting of an ammonium carbamate-based compound, an ammonium carbonate-based compound or an ammonium bicarbonate-based compound in the presence of a solvent; and 2) step of preparing silver oxide by reacting the precursor solution including the silver complex compound of step 1) with an oxidant. The shape and particle size of the silver oxide prepared according to the preparation process of the present invention can be changed. | 09-30-2010 |
20100272631 | SILVER OXIDE POWDER FOR ALKALINE BATTERY AND METHOD OF PRODUCING THE SAME - Alkaline battery silver oxide powder when soaked in a 50° C. KOH 40% aqueous solution for 24 hours experiences dissolution of Ag into the solution of 40 mg/L. Alkaline battery silver oxide powder exhibits substantially no Ag peak by X-ray diffraction even after soaking in a 50° C. KOH 40% aqueous solution for 72 hours. This powder has a crystallite size calculated from the half value breadth of the (111) plane peak by powder X-ray diffraction of greater than 250 Angstrom and equal to or less than 1000 Angstrom, particle diameter such that the average diameter of secondary particles is equal to or greater than 1 μm and equal to or less than 500 μm and that of primary particles forming the secondary particles is equal to or greater than 0.1 μm and equal to or less than 10.0 μm, and specific surface area of 5 m | 10-28-2010 |
20100278720 | Methods of Making Binary Metal Oxide Nanostructures and Methods of Controlling Morphology of Same - The present invention includes a method of producing a crystalline metal oxide nanostructure. The method comprises providing a metal salt solution and providing a basic solution; placing a porous membrane between the metal salt solution and the basic solution, wherein metal cations of the metal salt solution and hydroxide ions of the basic solution react, thereby producing a crystalline metal oxide nanostructure. | 11-04-2010 |
20110286912 | CATHODE ACTIVE MATERIAL (HIGHER OXIDES OF SILVER) - The present invention provides novel cathodes having a reduced resistivity and electrochemical cells using these cathodes. Furthermore, this invention also presents methods of manufacturing novel electrochemical cells and novel cathodes. | 11-24-2011 |
20120189534 | Method of manufacture of silver oxide nano particles - Manufacture of silver oxide nano particles is disclosed comprising using Armine-z as desegregating agent for silver salt solution and precipitating it with sodium hydroxide. | 07-26-2012 |
20130084238 | METHOD OF MAKING NANOMATERIAL AND METHOD OF FABRICATING SECONDARY BATTERY USING THE SAME - Disclosed are a method of making a nanomaterial and a method of fabricating a lithium secondary battery using the same. The method of making a nanomaterial includes preparing a mixed solution including a metal salt aqueous solution and an alkylamine, and hydrothermally treating the mixed solution. | 04-04-2013 |
20130156684 | PROCESS FOR PREPARATION OF SILVER OXIDE - A process for preparation of silver oxide with various shape and size using a silver complex compound having a special structure, includes 1) step of preparing a precursor solution including a silver complex compound obtained by reacting a silver compound with one or more mixture selected from the group consisting of an ammonium carbamate-based compound, an ammonium carbonate-based compound or an ammonium bicarbonate-based compound in the presence of a solvent; and 2) step of preparing silver oxide by reacting the precursor solution including the silver complex compound of step 1) with an oxidant. The shape and particle size of the silver oxide prepared according to the preparation process can be changed. | 06-20-2013 |
20130183228 | Urchin-Like Copper Oxide Material Manufacturing Method - An urchin-like copper oxide material manufacturing method, comprising following steps: providing copper powder of length about 5 to 150 μm; placing the copper powder on an aluminum oxide plate to be heated up; and heating up the aluminum oxide plate in a reaction temperature of 300° C. to 700° C., to obtain urchin-like copper oxide material on the aluminum oxide plate. By employing the manufacturing method, it only requires a simple thermal oxidation process to synthesize and obtain various types of urchin-like copper oxides having good stability and reproducibility, hereby achieving excellent performance in various opto-electronic applications. | 07-18-2013 |
20150037244 | SOLUTION REACTION APPARATUS AND SOLUTION REACTION METHOD USING THE SAME - The present invention relates to a solution reaction apparatus and solution reaction method using the same, and more particularly a solution reaction apparatus and a solution reaction method using the same, wherein a reaction vessel is made by using a sealing member, a reaction vessel forming member, and a substrate serving as the bottom part of the reaction vessel so as to cause one side of a reaction solution only to contact the solution, thereby adjusting the temperature of the substrate differently from the temperature of the solution. The solution reaction apparatus of the present invention can control temperature of the substrate and temperature of the reaction solution separately, thereby it can control the temperature of the solution above the boiling point of the solution, and can react the solution while constantly maintaining the concentration of the solution by the solution circulatory device. Accordingly, it has an effect of freely forming various nanostructures on the substrate. | 02-05-2015 |