专利号:WO-2020118698-A1 优先权日:2018-12-14 标 题:Method for microwave synthesis of lithium iron phosphate material 发明人:ZHANG ZHE MING; Wu Zheng Bin 权利人:SHENZHEN INSTITUTES OF ADVANCED TECH CHINESE ACADEMY OF SCINCES 摘要:The present invention relates to a method for the microwave synthesis of a lithium iron phosphate material, and specifically a method for the microwave synthesis of a lithium iron phosphate material using a waste battery is disclosed, the method specifically involving the following steps: (1) selecting a waste lithium iron phosphate battery, discharging same and then disassembling same to obtain a positive electrode sheet; (2) calcining the positive electrode sheet obtained in step (1) at 300-500°C for 1-10 h, taking same out when the temperature decreases to room temperature, mechanically vibrating the positive electrode sheet to make lithium iron phosphate fall off a current collector aluminum foil to obtain lithium iron phosphate powder; and (3) mixing the lithium iron phosphate powder, a lithium source, an iron source, a phosphorus source and a carbon source, ball milling same, then subjecting same to a microwave treatment for 10-100 s, and repeating the ball milling and microwave treatment steps until lithium iron phosphate particles are obtained. The process of the present invention is simple in operation, easy to control in process, lower in energy consumption, environmentally friendly, and does not produce secondary pollutants. Furthermore, the repaired lithium iron phosphate material can be reused for producing a lithium ion battery.
专利号:US-2023174386-A1 优先权日:2020-05-07 标 题 :Scalable synthesis of semi-conducting chevrel phase compounds via selfpropagating high temperature synthesis 发明人:GOUMA PELAGIA-IREN; PAWAR MILIND MANSING 权利人:OHIO STATE INNOVATION FOUNDATION 摘要:Methods for the scalable and systematic synthesis of semiconducting Chevrel phase compounds via self-propagating high temperature synthesis (SHS) are provided. The provided methods utilize elemental precursors not utilized by typical synthesis methods. The precursors may include molybdenum (Mo), molybdenum disulfide (MoS 2 ), and a ternary cation. In various aspects, the ternary cation may be copper (Cu), iron (Fe), or nickel (Ni). The utilization of the provided precursors and SHS decreases the time it takes to synthesize Chevrel phase compounds as compared to typical heat treatment methods.
专利号:US-2024409495-A1 优先权日:2021-10-20 标 题 :Process for the preparation of 2,7-dihydroxy-9-fluorenone useful for the synthesis of tilorone and its salts 发明人:JAISANKAR PARASURAMAN; DEB INDUBHUSAN; BHATTACHARJEE PINAKI 权利人:COUNCIL SCIENT IND RES 摘要:Methods involving preparation of building blocks of 2,7-dihydroxy-9-fluorenone toward the synthesis of tilorone dihydrochloride salt and other salts (bromide, iodide, fluoride, citrate, oxalate, maleate, phosphate, tartrate, triflate, trifluoroacetate, tetrafluoroborate) of tilorone, and an efficient, safe, cost effective method for the preparation of 2,7-bis-[2-(diethylamino)ethoxy]-fluorenone-9 and its various salts are developed. The methods involve oxygenation of fluorene, nitration of fluorenone, followed by reduction and diazotization toward the formation of 2,7-dihydroxy-9-fluorenone, which is the key intermediate for the formation of 2,7-bis-[2-(diethylamino)ethoxy]-9-fluorenone-dihydrochloride (Tilorone dihydrochloride) and other tilorone salts. The synthesis method has relatively simple operation, mild reaction conditions, high yield, and simple process with yields of 80-97%. Subsequent product purification of this method uses filtration and crystallization methods, avoiding the existing methods of column chromatography. Therefore, the research of its synthetic method being with a wide range of applications from the drug development and material synthesis point of view.
专利号:US-2024075466-A1 优先权日:2021-04-09 标 题:One-Pot Synthesis of Transition Metal-Promoted Chabazites 发明人:VAN TENDELOO LEEN; SCHUETZE FRANK-WALTER; VERHEYEN ELKE JANE JUNE 权利人:UMICORE AG & CO KG 摘要:The invention provides methods for a one-pot synthesis of molecular sieves of the CHA-type. The method uses molecular and non-molecular sieves as sources of silicon and aluminum. A first OSDA is selected from tetraethylenepentamine (TEPA) and triethy-lenepentamine (TETA). The synthesis mixture comprises a first metal selected from copper, iron and zinc. Optionally, the synthesis mixture may furthermore comprise a second OSDA and/or a second metal selected from manganese, cesium, magnesium, calcium, strontium, barium, yttrium, titanium, zirconium, niobium, iron, zinc, silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and mixtures thereof. The molecular sieves of the CHA-type obtainable by the method can be used as SCR-catalytically active substances for the removal of nitrogen oxides from exhaust gases of combustion engines.
专利号:US-10450201-B2 优先权日:2017-10-04 标题 :Method for the synthesis of nanoparticles of heterometallic nanocomposite materials 发明人:SOHAIL MANZAR; SHARIF MUHAMMAD; KHAN SAFYAN A; SHER MUHAMMAD; JAGADEESH RAJENAHALLY V 权利人:UNIV KING FAHD PET & MINERALS 摘要:A simple one pot sol-gel method for the synthesis of bi-metal nanostructures is based on non-noble metals (Fe, Co and Sn) and titanium. The method involves the synthesis of mixed metal nanoscale composites using low cost precursors which allow for the synthesis of desired nanocomposite materials with self-scarifying titanium or silica supports. The procedure does not require any surfactant or any need for pH controlled step. Applicants' method involves the in-situ generation of precursors and their simultaneous entrapment in a gel. This simple one pot synthesis allows for the synthesis of homogenous size, shape and distribution of targeted nanostructures. Further, this method can be applied for the preparation of various nanocomposite materials using different choices of metals and self-scarifying supports. Applicants also show that Pd, the noble metal based nanocomposite is feasible.
专利号:US-2012103789-A1 优先权日:2010-10-28 标题:Greener Synthesis of Nanoparticles Using Fine Tuned Hydrothermal Routes 发明人:MAYE MATHEW 权利人:MAYE MATHEW; UNIV SYRACUSE 摘要:The synthesis of energy and sensor relevant nanomaterials that involves the colloidal synthesis of quantum dots (e.g. CdSe, CdS, ZnS, CdSe/ZnS) under well-controlled hydrothermal conditions (100-200 degrees C.) using simple inorganic precursors. The resulting nanomaterials are of high quality, and are easily processed depending upon application, and their synthesis is scalable. Scalability is provided by the use of a synthetic microwave reactor, which employs dielectric heating for the rapid and controllable heating.
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