CAS: 3236-82-6; Ethanolate,Niobium(5+)

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CAS号64-17-5 乙醇 | CAS号10026-12-7 五氯化铌 | CAS号38874-17-8 正丙醇铌

📜五氯化铌 在 Ethanol,Ammonium体系中,用 苯作为反应溶剂,获得 Niobium Ethoxide
参考文献:金属醇盐合成铌酸钾
标题:金属醇盐合成铌酸钾
摘要:研究了从金属醇盐制备铌酸钾.合成了乙醇钾铌 Knb(°C2H5)6 和丙醇钾铌 Knb(°C3H7)6,然后使用几种水浓度(0.75 至 6.0 摩尔水/(醇的摩尔数))进行水解.当使用较高浓度的水时,会发生缺钾颗粒的快速沉淀.这导致在煅烧后形成多相材料,因为 X 射线衍射表明同时存在 Knbo3 和缺钾氧化物相.单相 Knbo3 可以通过两种方法制备:(1) Knb(°C3H7)6/丙醇溶液的水解,使用 1 Mol 水(每摩尔丙醇)作为水/丙醇溶液添加;(2)Knb(°C2H5)6/乙醇溶液的水解,使用 1 Mol 水(每摩尔乙醇)作为水/甲醇溶液加入.后一种方法为形成单相 Knbo3 提供了煅烧温度低和煅烧后失重低的优点.
Doi:10.1111/J.1151-2916.1991.Tb07296.X

专利信息

专利号:US-9183993-B2
优先权日:2014-01-10
标 题 :One-pot synthesis of Nb2O5-doped TiO2 nanoparticles
发明人：FENG SHIEN-PING; SU HAIJUN; CHANG YA-HUEI; HUANG YU-TING; HAU NGA YU; ZHAI PENG
权利人:NANO & ADVANCED MATERIALS INST LTD
摘要:A one-pot synthesis of Nb 5+ -doped TiO 2 nanoparticles (NPs) with low cost and high efficiency for dye sensitized solar cells (DSSCs) is disclosed in the present invention. The Nb 5+ -doped TiO 2 NPs with Nb dopants of 0Ëœ5 mol % are prepared by directly mixing TiO 2 slurry with Nb 2 O 5 gel obtained by UV treatment of a mixture of NbCl 5 powder, ethanol and water in a certain ratio, following by heat treatment without using hydrothermal method. The as-prepared NPs exhibit well-crystallized pure anatase TiO 2 phase with uniform particle distribution. The incorporation of Nb 5+ leads to a stronger and broader light absorption in visible light range and a decrease of band gap with increasing Nb dopant content, which enhances the efficiencies of light-harvesting and electron injection and suppresses the charge recombination. The present method provides a simple and cost-effective mass-production route to synthesize n-type metallic ion doped TiO 2 nanoparticles as excellent photoanode materials.

专利号:US-10593928-B2
优先权日:2014-08-20
标 题 :Single-step synthesis of nanostructured thin films by a chemical vapor and aerosol deposition process
发明人：CHADHA TANDEEP SINGH; BISWAS PRATIM; AN WOO-JIN
权利人:UNIV WASHINGTON
摘要:The present disclosure is generally directed to a single-step synthesis of nanostructured thin films by a chemical vapor and aerosol deposition (CVAD) process. The present disclosure is also directed to methods for controlling the morphology of the nanostructured thin films. The films can be used, for example, in lithium ion and/or sodium ion battery electrodes, solar cells and gas sensors.

专利号:US-2017246619-A1
优先权日:2014-09-26
标 题 :Solid state synthesis of oxidative dehydrogenation catalysts
发明人：BASSET JEAN-MARIE; ZHU HAIBO; ROSENFELD DEVON C; LAVEILLE PACO
权利人:DOW GLOBAL TECHNOLOGIES LLC
摘要:Synthesize a nickel oxide-based oxidative dehydrogenation catalyst via a solvent-free process that comprises sequential steps a. mixing without added solvent a combination of a solid nickel precursor, a solid oxalate or oxalic acid and, optionally, a doping amount of a metal precursor for a period of time sufficient to convert the combination to a visually homogenous mixture; and b. calcining the visually homogeneous mixture at a temperature within a range of from greater than 250° C. to less than 800° C. for a time within a range of from 30 minutes to 360 minutes in an oxygen-containing atmosphere, preferably air, to form a calcined oxidative dehydrogenation catalyst. As a modification of the process, add an intermediate step between steps a. and b. to dry the homo geneous mixture at a temperature within a range of from 50° C. to 90° C. for a period of time within a range of from 10 minutes to 600 minutes to form a dried mixture. The resulting catalyst may be used in oxidative dehydrogenation of ethane.

专利号:US-2014271446-A1
优先权日:2011-11-07
标 题:Catalyst for direct synthesis of hydrogen peroxide
发明人：DESMEDT FRÉDÉRIQUE J; GANHY JEAN-PIERRE; VLASSELAER YVES; MIQUEL PIERRE
权利人:SOLVAY
摘要:A catalyst comprising: a platinum group metal, silver or gold, and a carrier containing niobium or tantalum oxide or niobium or tantalum phosphate, and an oxide other than niobium or tantalum oxide, as well as its use in production of hydrogen peroxide. A process for producing hydrogen peroxide, comprising reacting hydrogen and oxygen in the presence of such catalyst in a reactor, and a process for producing such catalyst.

专利号:US-6395350-B1
优先权日:1997-10-29
标题 :Mesoporous transition metal oxide thin films and methods of making and uses thereof
发明人：BALKUS KENNETH J JR; KINSEL MARY E
权利人:UNIV TEXAS
摘要:Mesoporous transition metal oxide thin films and methods for producing these films are provided. Also provided are methods of fabricating useful chemical sensors and electrochromic devices from the thin films of the invention. Certain mesoporous transition metal oxide molecular sieves may be used as targets for pulsed laser ablation under controlled atmosphere, resulting in deposition of a thin film of the target material upon a substrate of choice. The thin films possess a mesoporous structure which may be enhanced by means of a hydrothermal treatment. The thin films also may be treated with a means of removing the templating agent used during synthesis of the mesoporous target material.

专利号:US-5051280-A
优先权日:1990-10-01
标 题:Low temperature synthesis of alkali metal niobates and tantalates
发明人：HUNG YANN
权利人:EASTMAN KODAK CO
摘要:A new synthetic method for the production of alkali metal niobates and tantalates is disclosed. The method involves the pyrolysis of a stoichiometric salt of an alkali metal and a niobium or tantalum complex of a bidentate or tridentate ligand. These salts are stable and, since the alkali metal and the niobioum or tantalum are already present in stoichiometric amounts, the resulting material comprises a substantially pure alkali metal niobate or tantalate.