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In combination with Ni_2 as phosphate scavenger, binuclear nickel complex displayed high catalytic activity for the polymerization of ethylene.

以Ni_2为瞵攫取剂,该双核中性水杨醛亚胺镍化合物对乙烯聚合显示出较高的催化活性,并考察了聚合反应条件对其催化性能的影响。

The results showed that the modified electrode was easier to electrocatalyze nitrite ions in the acidic condition. It had a better linear relationship between catalytical currents and the concentration of nitrite ions.

结果表明,该修饰电极在酸性条件下易于对NO2-催化,并且催化电流与NO2-的浓度在一定范围内呈现良好的线性关系。

The result of pyrolysis of CO2 show that the materials can decompose CO2 catalytically at 800℃.

材料用于CO2催化分解的实验结果显示,在800℃时材料对CO2具有很好的催化分解能力。

Compare with TiO〓, the photocatalysis ability of cuprous oxide need improve, yet.

与TiO〓降解有机物的光催化效果相比,氧化亚铜的催化性能仍有待提高。

The delignification mechanisms of three different kinds of photocatalysis bleaching of pulp were briefly reviewed in this paper.

简述了3种纸浆光催化漂白的脱木素机理,并以基于光敏剂产生单线态氧机理的光催化漂白为例,对硫酸盐竹浆进行了实验。

The n-butyl lactate was synthesied by the esterification of lactic acid and n-butyl alcohol in presence of ammonium ferric sulfate dodecahydrate NH4Fe(SO4)212H2O,and the factor influencing on the yield of reaction were discussed.

摘 要:在十二水合硫酸铁铵催化下,由乳酸和正丁醇发生酯化反应合成了乳酸正丁酯。实验考察了该催化剂催化酯化合成乳酸正丁酯的醇酸比、催化剂用量、反应时间、反应温度诸因素对酯化率的影响。

The anode is the catalyst and a reaction field for electrocatalysis reaction.

阳极既是电催化合成过程的催化剂,又是电催化反应进行的场所。

The electrocatalytic ability increases with increasing of acidity.

其催化性质也同时受到酸度的影响,随着酸度的提高,催化活性增加。

A process for preparingp-fluo-2-(2-methyl-3-propionyl)-4-oxy-N,3-diphenyl-phenylbutylamide includes such steps as Friedle-Craft acylating of newly prepared phenylacetyl chloride and fluorobenzene under catalysis of AlCl3 to obtain 4-fluoro-phenylbenzyl ketone, brominating at carbonyl alpha position under catalysis of less AlCl3 to obtain alpha-bromo-4-fluo-phenylbenzyl ketone, and condensing with isobutyryl acetanilide under action of sodium ethoxide.

本发明涉及一种制备对氟-2-(2-甲基-3-氧丙基)-4-氧-N,3-二苯基-苯丁酰胺(1)的方法,其包括以下步骤:新制的苯乙酰氯与氟苯在AlCl3催化下进行Friedle-Craft酰化反应,得到对4-氟-苯基苄基酮(4);化合物(4)在少量AlCl3催化下进行羰基α位溴化,得到α-溴-4-氟-苯基苄基酮(5);然后(3)异丁酰乙酰苯胺在乙醇钠作用下与化合物(5)进行缩合。

The nanocrystalline film was composed of a three-diminsional network of interconnected particles.Reodx behavior and electrocatalytic activities of the Ti/nano-TiO2 electrode were investigated by cyclic voltammetry from oxalic acid and nitrobenzene to glyoxalic acid and p-aminionphenol. The Ti/Ti redox system,as a medium,shows highly electrocatalytic activities and stable characteristic to indirect electroreduction of organic compounds(e.g.:oxalic acid and nitrobenzene).

循环伏安法研究了纳米TiO2膜电极对草酸还原为乙醛酸、硝基苯还原为对氨基苯酚反应的电催化活性,结果发现纳米膜中的Ti/Ti氧化还原电对起一种中介作用,可使有机物如草酸和硝基苯间接电还原,且电极催化活性高,性能稳定。

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