查询词典 electrochemical

The invention relates to an electrochemical method for preparing ultra-fine tantalum powder, wherein it uses the mixture slat flux with CaCl2 or CaCl2 as electrolyte; composites Ta2O5 powder/block with metal collector as solid cathode; uses graphite or inertia anode as anode; uses reference polar to control the electrolysis level, under inertia gas to electrolyze at 500-1000Deg. C; and the electrolysis time should make electrolysis electricity reach needed amount; reduces Ta2O5 into ultra-fine metal tantalum powder.

本发明涉及一种超细钽粉的电化学制备方法，以CaCl2或者含有CaCl2的混盐熔体为电解质，将Ta2O5粉末或块与金属集流体复合作为固态阴极，以石墨或惰性阳极作为阳极，用参比电极控制电解电位在惰性气氛保护下进行电解，电解温度控制在500-1000℃，控制电解时间使电解电量到达到理论所需电量及以上，将五氧化二钽电化学还原为超细金属钽粉。

Although the electrometallurgical and electrochemical power technologies bring about economic profits for mankind, they may also result a certain destruction to environment.

如电化学技术在环境监测、污染治理及大地修复方面的应用；电冶金和化学电源技术在给人类带来经济效益的同时，也对环境造成一定的破坏。

Electrocatalytic properties and reaction mechanism of nitromethane electroreduction on nano-crystalline tungsten carbide thin film electrode were investigated by electrochemical methods.

采用电化学方法研究硝基甲烷在纳米晶碳化钨薄膜电极上的电化学还原性能和反应机理。

The results show that the catalytic activity of C-MWNTs for the electroreduction of m-nitrotoluene is good;the electrochemical reduction of m-nitrotoluene on C-MWNTs is an irreversible cathodic wave,which is controlled by adsorption.

在实验基础上，进一步分析研究了C-MWNT-PME在间硝基甲苯电还原过程中的稳定性，结果表明，酸性溶液中C-MWNT-PME在间硝基甲苯电还原过程中是稳定的。

The results showed that WC/CNT nanocomposite exhibited better catalytic activity for the electroreduction of nitrobenzene than separate WC nanoparticles and CNTs,and it also had good electrochemical stability during the process of electroreduction of nitrobenzene in acid solution.

结果表明，WC/CNT纳米复合材料对硝基苯的电催化活性优于纳米WC和CNT，且WC/CNT纳米复合材料在硝基苯电还原过程中保持良好的化学稳定性。

It was found from the structure-electrochemical studies of myoglobin that (1) electroreduction induces the T→R configuration transition with peak shift in CD spectra and without umbrella conversed effect, which proved that umbrella conversed effect is mainly the cooperation of four subunits in hemoglobin;(2) the mechanism of EC with adsorption of reduction product and parameters have also been obtained.

肌红蛋白的结构-电化学研究中发现：（1）电化学还原诱导了肌红蛋白的T→R构型转化，伴随着CD谱的峰位移，但没有象血红蛋白那样明显伞翻转效应，表明伞翻转效应是多个亚基共同作用的结果；（2）获得肌红蛋白电化学还原的EC机理，并伴随产物吸附的自阻碍过程及其参数。

It was found from the structure-electrochemical studies of cytochrome c that (1) the secondary and tertiary structural changes of cytochrome c are greatly influenced by the reductions of tyrosine residues and iron ions in heme;(2) the reduction reaction dose not induce the configuration transition;(3)α helix, parallel β sheet, antiparallel β sheet and random coil take part in the complex secondary structural transitions;(4) mechanism and parameters about the electroreduction have also been obtained.

在细胞色素c的结构-电化学研究中发现：（1）细胞色素c的二级和三级结构受电场和酪氨酸残基及血红素中Fe的电化学还原的影响，其中酪氨酸残基还原的影响较大；（2）细胞色素c的电化学还原没有发生构型转化现象；（3）细胞色素c参与二级结构变化的构象有α螺旋，平行β折叠，反平行β折叠和无规卷曲；各组份随电位的变化复杂；（4）获得细胞色素c电化学还原的机理和参数

SEM and AFM in combination with electrochemical measures were employed to characterize the microstructure, electrocatalytic properties, and the correlation between electroreduction of oxygen and electrocatalysis of the Ni-MnO2 electrode.

采用喷雾热解法合成了超细二氧化锰，通过喷涂制作成Ni-MnO2薄膜电极，结合SEM、AFM和电化学测试技术，研究了碱性介质中氧在Ni-MnO2薄膜电极上的电催化还原过程。

In electrosynthesis industry,Mn2+/Mn3+ in H2SO4 is often used as electrochemical oxidation medium.

在有机电解合成工业中，硫酸介质中的Mn2+/Mn3+是最常用的氧化媒质。

Each step of electrosynthesis of alanine has been studied deeply by UV, XPS, electrochemical homeostatic and transient testing technique.

利用UV、XPS、电化学稳态测试和暂态测试技术，对电合成丙氨酸的各分步反应进行了深入的研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。