查询词典 speculum metal

In this paper,the electrochemical reduction of CO2 by various metal electrodes in aqueous solution,organic solvent and molten salt media is reviewed,which includes reaction activity and mechanism of every kind of metal electrodes. The effect of electrode,temperature,pressure,electrode potential and electrolyte on the selective and Faradaic e...

综述了金属电极在水溶液、有机溶剂以及熔融体中电还原CO2的研究现况，包括各类金属在电还原CO2过程中所表现出的反应活性以及生成相应产物的反应机理；介绍了电极、温度、压力、电极电位和电解质等因素对金属电极电还原选择性及法拉第电流效率的影响；展望了CO2电还原的未来研究方向及应用前景。

Metal oxide materials are employed as electrodes for Faradaic capacitors, a typical representative of metal oxides is hydrated RuO2, which can yield a capacitance as high as 768 F·g-1 in H2SO4 electrolyte for a single electrode. However, it has a relatively high cost and this will prevent broader commercial applications; Besides, if RuO2 contacts with H2SO4 electrolyte for a long time, it may dissolve at a certain extent; at the same time, H2SO4 electrolyte can erode current collector, which cause entironment pollution.

赝电容器主要是以金属氧化物为电极材料，典型代表为RuO2，无定型RuO2在H2SO4溶液中单电极的比电容高768F·g-1 ；但由于Ru是贵金属、价格昂贵、难于实现商业化，并且RuO2长时间接触硫酸电解液，会出现一定程度的溶解，同时硫酸很容易腐蚀集流体，造成环境污染。

A series of light-weighted metal coated functional composites have been fabricated by electroless metal plating on activated ultrafine particles, with nickel or copper as the shell, ultrafine particles as the core templates, such as alumina, titania, ferriferous oxide, natural pollen, hollow microspheres.

结合分子自组装技术在硅片表面制备了密堆积的胶体钯纳米薄膜，并首次提出了一种无需氯化亚锡敏化、基于分子自组装膜化学吸附胶体钯纳米微粒的活化方法，成功地引发了金属铜或镍在金属与非金属表面的无电子沉积，制备了一系列金属包覆非金属粉末的轻质超细核壳结构功能材料。

In the thesis, we wish to report the synthesis and structures of a series of new type rigid conjugated nanometer-sized fulvene ligands, and coordination polymeric compounds based on both metal-carbon and metal-heteroatom interactions and also H-bonded supramolecular architectures generated from this new type of fulvene ligands.

基于此，我们合成了一系列刚性共轭的纳米级富烯类配体，并以之与过渡金属离子反应合成了同时基于金属-碳和金属-杂原子两种键合作用的有机-无机配位高聚物及以氢键作用为驱动力的超分子聚集体。

Among them,the chemosensory properties of two molecular tweezers derived from diethoxycarbonyl glycoluril for metal ions were studied by fluorescent spectroscope.It was found that they both exhibited selective recognition towards Fe~(3+)among 13 metal ions investigated in DMF/CH_3OH(50:1, v/v)with fluorescence quenching,and formed 1:1 stoichiometry complex with Fe~(3+).

通过荧光光谱滴定考察了其中两个二乙基酯基甘脲分子钳异构体对13种不同金属离子的识别作用，研究表明在DMF/MeOH(50：1 v/v)中，它们能够很好地选择性地识别Fe~(3+)离子，与Fe~(3+)离子形成1：1的复合物并且呈现荧光淬灭效应，可作为Fe~(3+)的荧光化学传感器。

According to the determination of fluorescence properties,mononuclear metal complexes have fluorescence properties,while heteronuclear metal complex does not have fluorescent properties.

根据荧光性能的测定，单核金属配合物具有荧光性能，异核双金属配合物没有荧光性能

The molecular sieve is prepared in the steps: at the room temperature, hexadecyl trimethyl ammonium bromide is mixed and dissolved with the sodium hydroxide, and is added with TEOS in dropping way, and simultaneously added with Me metal salt water solution and lanthanum nitrate solution in dropping way; the pH value of the mixed solution is adjusted by acetic acid to be 10 to 11, and is mixed for 1 to 2 hours after being stabilized; the sol is moved into a polyfluortetraethylene bottle to be heated and crystallized for 2 days in the oven at the temperature of 100 DEG C; after filtering, washing and drying for nights, and being calcined in a muffle at the temperature of 550 DEG C for 3 to 7 hours, the dual-metal-atom improved MCM-41 mesoporous molecular sieve is obtained.

该分子筛的制备为室温下，将十六烷基三甲基溴化铵和氢氧化钠混合溶解，搅拌并滴加入TEOS，同时滴加入Me金属盐水溶液和硝酸镧溶液并搅拌，用乙酸调节pH值至10～11，稳定后搅拌1～2小时，溶胶转入聚四氟乙烯瓶中在100℃下烘箱水热晶化2天，经过滤、洗涤、干燥过夜，马弗炉550℃焙烧3-7h，得双金属原子改性MCM-41介孔分子筛产品。

Different from the conventional catalyst immobilization methods, the self-supporting strategy utilizes homochiral metal-organic coordination polymers generated by self-assembly of chiral multitopic ligands with metal ions without using any support.

与传统的负载模式不同，手性自负载催化剂通过含双或多官能团的手性配体与金属通过自组装形成一类有机-无机聚合物，因此无需使用任何载体，即能够有效地实现手性催化剂的回收和再利用。

A 2.8-inch (7.112 cm) homochromous flexible display was fabricated on a plastic substrate, which showed a luminance of 120 cd/m2 at a drive-voltage of 12 V. A top-emitting FOLED was fabricated on a metal substrate. The efficiency of FOLED is close to OLED on a glass substrate, and the CIE coordinates are about (x=0.69,y=0.31). The color purity of the top-emitting device on metal substrate is much improved.

在聚合物衬底上成功制备了2.8 inch（7.112 cm）的128×64单色FOLED显示屏，在驱动电压12 V时屏体亮度达到120 cd/m2；在金属衬底上，采用顶发光技术制备了FOLED元器件，顶发光器件与相对同发光层结构底发光器件有相近的电流效率，色坐标（x=0.69，y=0.31），色纯度优于相同发光层结构的底发光器件。

Process for the preparation of phosphatidylserine of formula wherein R and R independently represent a saturated, mono-unsaturated or polyunsaturated acyl C10-C30, X=OH or OM where M=alkaline or alkaline earth metal, ammonium, alkylammonium including the transphosphatidylation reaction between phosphatidylcholine of the general formula wherein R and R and X have the above specified meanings, R=CH2-CH2- NH2 o CH2-CH2-N(CH3)3 and Serine in D, L or racemic form catalysed by the phospholipase D enzyme, characterised in that said reaction is carried out in a hydroalcoholic medium containing an aliphatic alcohol and in the presence of bivalent metal oxide.

本发明涉及制备式CH 2 OR 1 CHOR 2 CH 2 O-P-OCH 2 -CH(NH 2 )-COOHX的磷脂酰丝氨酸的方法，其中R 1 和R 2 独立地表示饱和的、单不饱和的和/或多不饱和的酰基C 10 -C 30 ，X＝OH或OM，其中M＝碱或碱土金属、铵、烷基铵，该方法包括通式CH 2 OR 1 CHOR 2 CH 2 O-P-OR 3 X的磷脂酰胆碱其中R 1 和R 2 以及X具有上述特别的含义，R 3 ＝CH 2 -CH 2 -NH 2 或CH 2 -CH 2 -N (CH 3 3 与D、L或外消旋形式的丝氨酸之间的转磷脂酰化反应，该反应是通过磷脂酶D酶催化的，其特征在于所述的反应是在包含脂族醇的含水醇介质中并且在二价金属氧化物的存在下进行的。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。