二是阳极催化剂对甲醇氧化反应的活性低。
The other is slow methanol oxidation kinetics on the anode catalyst.
此外,增加甲醇的浓度和反应温度有助于提升在超细WC表面的甲醇氧化反应。
Moreover, increasing the methanol concentration and reaction temperature promotes methanol electro-oxidation on ultrafine mesoporous WC.
甲醇氧化反应动力学研究表明,甲醇在新鲜和高温热老化的铂催化剂上,反应动力学网络表示式是有区别的。
The study on reaction kinetics for methanol oxidation on the fresh and high temperature aged Pt catalyst showed that the expression in kinetics network was changed.
由此产生的进一步方案是将这样的溶液导入内容催化剂的试管中,其催化剂在紫外线的作用下使溶于水的二氧化碳(CO2)与水(H2O)反应,生成甲醇(CH3OH)。
The resulting solution is directed into tubes containing a catalyst that is activated by UV light and causes the dissolved CO2 to react with water (H2O) to form methanol (CH3OH).
这种反应,需要催化剂,将甲醇和水变成质子和电子(换句话说,就是游离的氢原子)以及二氧化碳。
The reaction, which requires a catalyst, turns the methanol and water into protons and electrons (in other words, dissociated hydrogen atoms) and carbon dioxide.
在甲醇的氧化和氧气的还原反应中,金纳米花显示出优良的电催化活性。
The GNFs show excellent electrocatalytic activity toward the oxidation of methanol and the reduction of oxygen.
考察了反应温度、氧浓度、催化剂用量以及反应时间对苯甲醇氧化的影响。
Effects of reaction temperature, oxygen concentration, catalyst dosage and reaction time on oxidation of benzyl alcohol were investigated.
简述了分别以一氧化碳、二氧化碳与甲醇、二甲醚等进行羰基化反应合成碳酸二甲酯(DMC)的研究进展。
Advances in the carbonylation synthesis of dimethyl carbonate (DMC) from methanol or dimethyl ether with carbon monoxide or carbon dioxide were summarized.
对甲醇氧化羰基化合成DMC的过程进行了热力学分析。着重计算了合成反应的平衡常数和平衡转化率。
A thermodynamic analysis of synthesis process of DMC by oxidation carbonylation of methanol was carried out with the emphasis on calculations of equilibrium constants and conversions for the reaction.
报道一种在甲醇镁作用下,由二氧化碳及甲醇直接合成碳酸二甲酯的反应过程。
Dimethyl carbonate is synthesized directly from carbon dioxide and methanol in the presence of magnesium methoxide.
冰片基氯化镁与二苯酮的反应产物是二苯基冰片基甲醇、二苯基甲醇和它的氧化产物冰片烯。
The reaction products of bornyl magnesium chloride with diphenyl ketone are diphenyl bornyl carbinol, diphenyl carbinol and its corresponding oxidation product, bornylene.
以负载型氧化物为催化剂,研究了二氧化碳在超临界条件下,与甲醇和环氧丙烷一步合成碳酸二甲酯的反应性能。
A study was made on synthesis of dimethyl carbonate with one step from supercritical carbon dioxide, methanol and propylene oxide over supported oxides.
在间歇釜式反应器中,进行一氧化碳与甲醇羰基化合成甲酸甲酯的合成,考察甲醇钠碱性催化体系对反应的影响。
Sodium methoxide used as catalyst for the synthesis of methyl formate by carbonylation of methanol was studied, and effect of three kinds of promoter was investigated.
表面活性剂铜配合物具有较好的水溶性和表面活性,不但在DM F溶剂中有效催化苯甲醇、安息香的空气氧化反应,而且在稀碱溶液中形成的金属胶束也可催化氧化苯甲醇。
Cu complex of the surfactant have water soluble ability and surface activity, can catalyze the air oxidation of benzyl alcohol or Benzoin not only in DMF solution but also in alkali water solution.
采用氢醌双丙酸酯为原料,在甲醇-水溶液中,碱性条件下,加入适量抗氧化剂,经部分醇解脱酰化反应合成氢醌单丙酸酯。
Hydroquinone monopropionate was synthesized by partially alcoholysized and deacylated of hydroquinone bipropionate in methanol-water solution and alkaline condition with appropriate antioxidant.
木质素的电氧化有两种机理,一种是失去两个电子产生苯氧正离子,然后苯氧正离子与水或甲醇反应;
There are two kinds of mechanism:one is to form phenoxonium ion by the removal of two electrons.
在碱性溶液中,大约需0.245V便可观察到甲醇的氧化反应,其正电位明显少于未经修饰的多晶金电极。
Oxidation of methanol in alkaline solution was observed at approximately 0.245 v, which is much less positive than that on an unmodified polycrystalline gold electrode.
用氢氧化钠中和反应混合物后,再用反应前馏分、水和甲醇先后洗涤,烘干后粉碎即得高性能产品。
More fine properties of products could be gained by adding sodium hydroxide as neutralization process, and using water and methanol in sequence to purify product.
一氧化物和氢气反应生成甲醇;
氧化锌也可以增强水煤气转移和甲醇蒸汽重组反应中的活动性。
ZnO also enhanced the activity for both the water gas shift and methanol steam reforming reactions.
本文报道紫精化合物及亚硫酸盐在硫化镉光催化氧化二苯甲醇及其它芳香醇反应中的作用。
With CdS powder as photolysis catalyst, the oxidation of benzyl alcohol derivatives benzhydrol, benzyl alcohol, benzoin were investigated.
本文报道紫精化合物及亚硫酸盐在硫化镉光催化氧化二苯甲醇及其它芳香醇反应中的作用。
With CdS powder as photolysis catalyst, the oxidation of benzyl alcohol derivatives benzhydrol, benzyl alcohol, benzoin were investigated.
应用推荐