碳电极

The electrochemical properties of the composite material electrodes were studied by cyclic voltammetry and constant current charge/discharge tests in 1 mol/L H2SO4 solutions.

电化学测试表明该方法制备的碳复合材料作为超级电容器电极时，比容量达到240F/g ( I = 1.0A/g )，较纯粹的碳材料增加了大约100%。

Methods:Amperometry was employed to examine the electrochemical respondence of our developed glucose biosensor on additions of glucose.

用硅溶胶凝胶技术修饰电化学铂化处理的碳粉与葡萄糖氧化酶混合制成的碳糊电极，构成新型电流式葡萄糖传感器，并用电流分析法研究其对葡萄糖的响应。

Electrocatalysis can be considered as one of the most popular application of selemium nanoparticles and carbon nanotubes. In this paper, the potential applications of MWCNTs/Se modified electrode in biological electrocatalytic were investigated and discussed.

根据碳纳米管和纳米硒在生物电催化反应中表现出的巨大潜能，研制了碳纳米管复合纳米硒修饰电极并探讨其在生物分子电化学研究中的应用，对发展新型电化学传感器和拓展纳米材料的应用具有重要的理论意义和实际应用价值。

And the electroreduction process of nitrobenzene on WC powder electrode in basic solution is investigated by cyclic voltammetry, linear potential sweep and chronoamperometry. In the process of electroreduction of nitrobenzene on WC powder electrode, liquid phase mass transferring may be the control step.

并且也用循环伏安、线性扫描和恒电位阶跃等测试方法研究了碳化钨粉末电极在碱性介质中析氢和还原硝基苯的电化学特性，发现碳化钨在电催化还原硝基苯过程中，可能主要受反应物的液相传质控制。

Pt nano particles decorated with nafion ionomers were synthesized and used as electrocatalyst in proton exchange membrane fuel celldue to plentiful proton channels provided by the enwrapping polymers.Then decorated Pt particles were deposited on carbon nanotubes,which enwind each other into interconnect nets and form the framework of the catalyst layer for PEM fuel cell.

介绍了Nafion聚合物作为修饰离子，合成具有原位质子导电能力的纳米Pt颗粒；TEM分析显示Pt颗粒的平均粒径为4nm，颗粒之间界限明显，分散状态良好；将这种离子导体修饰的纳米Pt沉积到纳米碳管表面作为质子交换膜燃料电池催化电极，纳米碳管相互缠绕在催化层形成交联的电子通道。

Carbon nanotubes—hollow, tube-shaped lattices of carbonatoms—can be used to make a mechanical memory that works by bending thecarbon filament up or down to make or break a connection between two electrodes.

碳纳米管能用于制造机械的存储器，它通过上下弯曲碳丝从而接通或断开两个电极之间的连接而工作。

Carbon nanotubes—hollow, tube-shaped lattices of carbon atoms—can be used to make a mechanical memory that works by bending the carbon filament up or down to make or break a connection between two electrodes.

碳纳米管能用于制造机械的存储器，它通过上下弯曲碳丝从而接通或断开两个电极之间的连接而工作。

Thus called Carbon arc lamp.

电极通常为碳，故亦称碳精弧光灯。

Because of the disadvantages in the electrolysis of rare earth metals, a new kind of electrode material called non-carbon anode is studied, and the corrosion mechanism is reseached.

针对稀土金属Nd的氟化物体系熔盐电解中石墨阳极所存在的一系列不足，研制了一种新型的电极材料，称其为非碳阳极；并对其在电解过程中的腐蚀机理进行了较详细的探讨，提出了还原反应、氧化反应、电解质渗透、电极组分溶解、析氧膨胀等几种可能的腐蚀原因。

The results show that:(1) MnO2 deposition on the surface is the main factor resulting in cathode polarization, and the flowing of the solution can remarkably reduce this polarization. Furthermore, the buffered solution can reduce the polarization resulting from H+ concentration difference;(2) it is deduced from the polarization curve that the key factor influencing the performance of MFC is microbial number and metabolic rate and the electron transferring rate from microbial to electrode;(3) the power density arrives at the biggest, 824 mW/m2, when outer resistance is 300 Ω, which is accordance to the inner resistance,(284±18)Ω, deduced from I-V curve;(4) the influences of pH and permanganate concentration on cathode potential is in agreement to Nernst equation.

研究结果显示：(1) MnO2在碳纸表面的沉积是阴极极化的主要原因，而溶液流动可以明显降低极化程度；将高锰酸钾溶解在缓冲溶液中可以进一步降低阴极H+浓差极化；(2)根据极化曲线可以推断，影响电池输出功率的决定性因素应是微生物代谢反应速度和微生物与电极之间的电子传递速率；(3)随外电阻的变化，电池输出功率出现极大值824 mW/m2，相应外电阻为300 Ω左右，这与通过 I-V 关系曲线推导得到的电池内阻(284±18)Ω相吻合；(4) pH值和高锰酸钾浓度对电池阴极电极电势的影响符合Nernst方程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。