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Some electrochemical characteristics of boron- and phosphorus-doped glassy carbon electrodes

机译：硼和磷掺杂的玻碳电极的一些电化学特性

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摘要

Three glassy carbon (GC) samples: undoped and doped with boron or phosphorus, prepared at 1000degreesC, were compared in respect to hydrodynamic current-potential curves in acidic medium, cyclic voltammograms for Fe3+/2+ and Fe(CN)(6)(3-/4-) and argentometric titrations of halides. Some experiments were also carried out using standard Tokai and Sigri GC and Ag electrode. It appeared that GC doped with boron and phosphorus exhibited significant increase in hydrogen evolution overpotential. As for the electrode kinetics (DeltaE(p) criterion), no significant difference was observed between doped and undoped electrodes. In the potentiometric titrations the phosphorus-doped electrode was advantageous over the other GC and Ag electrodes as it enabled more precise end-point detection. [References: 18]
机译：比较了在1000°C下制备的三个玻璃碳（GC）样品：未掺杂和掺杂硼或磷，在酸性介质中的流体动力-电流曲线，Fe3 + / 2 +和Fe（CN）的循环伏安图（6）（ 3- / 4-）和卤化银的滴定法。还使用标准的Tokai和Sigri GC和Ag电极进行了一些实验。看来，硼和磷掺杂的气相色谱显示出氢释放超电势显着增加。至于电极动力学（DeltaE（p）准则），在掺杂和未掺杂电极之间未观察到显着差异。在电位滴定法中，磷掺杂电极优于其他GC和Ag电极，因为它可以实现更精确的终点检测。 [参考：18]

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