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- neptunium alkoxide 烷基醇镎
- The phenyl of p n propylbenzoic acid could be reducted by sodium alkoxide. 醇钠可以还原对丙基苯甲酸中的苯环。
- Determination of neptunium in nitric acid solutions by molecular absorption spectrophotometry?? 用分子吸收分光光度法测定硝酸溶液中的镎
- The formate activates the carboxylic acid and functions as a source of nucleophilic alkoxide. 羧酸甲酸激活的职能和核醇源泉.
- The adsorption isotherm of neptunium on silica gel corresponds to the form of Langmuir isotherm. 三种价态的镎的吸附规律符合Langmuir吸附等温线,镎在硅胶上的吸附属于单分子层吸附。
- Aldehydes and other carbonyl compounds are most easily polymerized by essentially anionic mechanisms on account of the stability of alkoxide ions. 醛类和其他的羰基化合物,由于烷氧基离子的稳定性,最容易通过本质上是负离子的机理进行聚合。
- Technology of nuclear fuel cycle.Determination of neptunium in nitric acid solutions by molecular absorption spectrophotometry. 核能.;核燃料循环技术
- A [[thiolate]] ion has an -S- functional group attached. These are the sulfur equivalent of [[alkoxide]] ions. 在[[森林]]生态系统中,硫酸盐主要来自空气,少量来自矿物的风化。其中硫的同位素的不同含量可用来确定它们的来历。
- Porous anatase TiO 2 nanometer thin films were prepared from alkoxide solutions containing polyethylene glycol by a dip coating technique. 锐钛矿型 Ti O2 多孔纳米薄膜可以从含聚乙二醇的钛醇盐溶胶前驱体中通过浸渍提拉法制备 ;
- It was found that the alkoxy of the aluminium alkoxide can be exchanged to the arkoxy of the raw material or product in the process of reaction. 结果表明,醇铝在催化单醚合成呋喃酚过程中,醇铝中的烷氧基与原料单醚和产物呋喃酚的芳氧基发生了交换,交换生成的醇与单醚或呋喃酚发生副反应降低了呋喃酚收率。
- Yttria powders were prepared from yttrium alkoxide by sol-gel process.IR, XRD and TEM studied their structures and morphologies. 通过IR、XRD、TEM分析手段研究了粉体的结构与形貌,研究结果表明:采用金属与醇直接反应法可以制备异丙醇钇;
- Sol-gel method has been extensively studied.However, the alkoxide material is expensive and it is easy to hydrolysis upon exposure to moisture air. 溶胶-凝胶法是研究最多的方法,但是烷氧化物原料昂贵,而且碰到潮湿空气时会立即水解。
- The organized mesoporous alumina synthesized from hydrolysis of organic alumina alkoxide is suitable for preparation of high-loading metal catalyst. 采用原位法,在制备催化剂载体的过程中, 将活性成分添加进去, 使得在形成介孔材料的同时将活性成分负载在载体上制备了负载镍金属有序介孔氧化铝催化剂。
- Using aluminum alkoxide as raw material,pore diameters of mesoporous alumina were adjusted by three different templates. 以醇铝为原料,利用三种不同类型的模板剂对氧化铝的孔径进行调节,对各种模板剂的作用机理进行了初步探讨。
- Poly(L-lactide)(PLLA) was synthesized by ring-opening polymerization of L-lactide using cyclic tin alkoxide compound as initiator. 以环烷氧锡化合物引发L-丙交酯开环聚合制备高分子量聚L-乳酸。
- Supported titania ceramic membranes,prepared by sol-gel techniques from alkoxide starting materials,were characterized by SEM,DSC,TGA,EDS and XRD. 采用溶胶-凝胶法制备有载体氧化钛膜,通过扫描电镜、差热热重仪、X射线能谱仪和X射线衍射仪等分析测试手段对膜的形貌、结构及热稳定性进行了研究。
- The porous TiO 2 anatase thin films deposited on glass were prepared from titanium alkoxide solution containing polyethylene glycol (PEG) by dip coating technique. 从含聚乙二醇的钛醇盐溶胶前驱体出发 ;通过浸渍提拉法在玻璃表面制备了锐钛矿型多孔TiO2 薄膜 .
- Using aluminum alkoxide as raw material,pore diameters of mesoporous alumina were adjusted by three different templates.The role of template was discussed. 以醇铝为原料,利用三种不同类型的模板剂对氧化铝的孔径进行调节,对各种模板剂的作用机理进行了初步探讨。
- Liquid phase precipitation method,sol-gel method,alkoxide hydrolysis method,gaseous phase method,solid phase method were discussed and analyzed in detail. 液相沉淀法由于原料廉价易得、工艺简单、产品性能稳定、环境污染少等特点使其成为最具有工业应用价值的纳米氧化镁制备技术。