查询词典 electrode potential

A generalized mathematical model was developed to describe the distribution of over-potential.Dimensionless variables μ and ω that characterize the polarization and influence of side electrode reaction in the system,were derived from modeling.Adomian's decomposition methodADM）was used to solve the nonlinear differential equation of the model to obtain an approximate analytical solution,which was in the form of algebraic expressions of infinite power series.By the solution,the relationship between over-potential distribution and average selectivity could be easily calculated without solving the nonlinear model time and again.

建立了描述超电势分布的普遍化数学模型，归纳出表征电极极化和副反应影响的量纲1数μ和ω，并用ADM（Adomian's decomposition method）对该非线性微分方程模型求解；所获得的逼近解代数表达式，可方便地计算不同参数下超电势分布对平均选择性的影响，而毋需反复求解模型微分方程。

The results showed that: 1 reinders' redox buffers were used to study the redox properties not only for latent image centers but also for sensitivity centers; 2 The redox potential of Ag2S sensitivity centers was less negative than －220 mV with respect to the saturated calomel electrode in our experiment and the redox potential of latent image centers was between －220 mV and －190 mV; 3 The redox activities of latent image centers were much higher than that of sensitivity centers.

实验结果表明：1Reinders的氧化还原缓冲液的方法，不仅可用于研究潜影中心，也可用于研究敏化中心；2本实验条件下的硫化银敏化中心的氧化还原电位约略负于－220 mV，潜影中心的氧化还原电位值是介于－220 mV与－190 mV之间；3潜影中心的氧化还原活性较敏化中心大得多。

The electrochem. behavior of myoglobin at a Brilliant Cresyl Blue modified platinum gauze electrode and spiral Pt wire in the BCB solution in optically transparent thin layer cell has been investigated by using cyclic potential-absorbance method and double potential step chronoabsorptiometry.

利用循环电位吸收法和电位阶跃计时吸收法在薄层电解池中研究了肌红蛋白在灿烂甲酚蓝修饰电极上和BCB溶液中的电化学行为。

In order to improve the electro-catalytic activity of platinum based catalyst to methanol oxidation, in this thesis, firstly prepare heteropoly acid modified Pt/GC electrode with different concentration by cyclic voltammetry method, and then test the cyclic voltammetry curves individually in vitriolic and methanol solution. The study shows the best concentration for both phosphomolybdic acid and phosphotungstic acid is 1×10~(-3)mol/L. And find the more heteropoly acid modified on electrode, the lower peak-up potential towards methanol because of the existence of oxygenous species.

为了改善铂基催化剂氧化甲醇的催化活性，本论文首先通过循环伏安扫描法制备了不同浓度磷钼酸和磷钨酸修饰的Pt/GC电极，通过研究Pt/GC电极在修饰前后在硫酸溶液中及含甲醇的硫酸溶液中的循环伏安行为发现，磷钼酸和磷钨酸均能在PtRu/C电极上发生氧化还原反应，而且杂多酸修饰浓度对Pt/GC电极氧化甲醇的催化活性有很大影响。

In the second part, potential-modulated electroreflectance spectroscopy was employed to investigate the electrochemical behaviors of electroactive species on the electrode surface.Redox behaviors of heptylviologen was studied by using ER at a silver electrode. The reoxidation behavior of heptylviologen cation radical deposited film was investigated by dc, ac and ER voltammograms.

本文用ER研究了银电极上heptylviologen的氧还行为，用直流、交流和ER伏安法研究了heptylviologen 阳离子基沉积膜的重新氧化行为，并用ER光谱和ER伏安法研究了heptylviologen阳离子基在沉积膜中的存在方式。

However, the highly conductive electrode material on the surface of the body coerces the contact surface underneath the electrode to be changed into an equal potential This reduces the current density at the interior of the body and affects the distribution of the sens ing field.

但是，导电材料的电极将其下的被测生物体表面强制为等电势，从而降低生物体内的电流分布密度，影响场域内部的电场分布。

In this paper ,the anodic differential pulse voltammetry has been applied to the research of the electrochemical behaviour of biotin,with gold electrode as working electrode.In solution of HAc NaAc(pH 3.59),the peak potential of biotin is 0.46V.The calibration curve is linear over the concentration range of 1.0×10 -6 ～2 0×10 -5 mol/L.

用微分脉冲阳极伏安法研究了生物素的电化学行为，用金电极作工作电极，在pH3.59的HAc－NaAc介质中，生物素的峰电位为0.46V，生物素浓度在1.0×10－6～2.0×10－5mol／L范围内与峰高呈线性关系。

There are some methods used commonly to immobilize POM on electrode surface, for example, electrodeposition of POMs on the electrode surface from a polyoxometalates solution under constant potential, self-assembly and layer-by-layer deposition, entrapment POM into polymers matrics and sol-gel method. There are some drawbacks using above methods.

杂多酸化学修饰电极主要有以下几个方法：恒电势下，多酸阴离子在电极表面的电沉积；多酸阴离子在电极表面的自吸附；聚电解质和多酸阴离子在电极表面的交替沉积；把多金属氧酸盐包埋在各种聚合物中；溶胶－凝胶法。

When the redox electrode is immersed in a solution containing a reversible chemical reaction system, a migration of electrons is established between the electrode and the system. This electron flow can be construed as an exchange current density and is of paramount importance for accurate, fast and reproducible redox potential measurement.

当氧化还原电极浸入具有逆转化学反应系统的溶液中时，会有电子在电极与溶液间移动，这些电子的流动被转绎成交换电流密度，这是准确性高，快速和再现性佳的 ORP测量技术最重要的参数。

The film electrode shows a Nernst potential response for pH3—12 and electrode coefficient 57mV/pH.

该膜电极在pH3～12范围内对pH呈Nernst响应，电极系数为57mV/pH，对Li~+，Na~+，K~+三种离子具有较高的抗干扰性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。