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来源：百度知道 编辑：UC知道 时间：2024/05/27 17:44:22
2.4. Measurement procedure Large amplitude pulse voltammetry (LAPV) was performed using a potentiostat (ISKRA, Chemel AB, Sweden). Fig. 3 shows the applied pulse sequence as well as a typical response of the three used electrodes. In this case, a scan from 0 to +1.8V wasperformed with potential steps of 0.2V. Initially a 0Vpotential is applied for 200 ms. After that time potential is switched to +0.2V during 200 ms. Return to 0V is then performed for another 200 ms and after that +0.4V are applied. Cycle is repeated until applied potential reaches +1.8V.Asharp signal is obtained when a potential pulsed is applied, due to the capacitive current generated by the double layer of charged or polar species at the electrode surface. Ten current measurements were performed after each pulse and each return to 0V, but only five of them (10, 20, 30, 50 and 100 ms) were considered as key values and thus, only these were recorded. Scans were performed twice, once with carrier in the measuring cell
2.4. 测量做法大高度脉冲伏安法(LAPV)使用potentiostat (ISKRA执行了， Chemel AB， 瑞典)。 。 3个展示应用的脉冲序列并且三个使用的电极的一个典型的反应。 在这种情况下， 扫瞄从0到+1.8V wasperformed以潜在的步0.2V。 最初0Vpotential为200女士是应用的。 那时候潜力以后被交换对+0.2V在200女士期间。 回归到0V为另外200女士然后执行，并且以后那+0.4V是应用的。 周期被重覆，直到应用的潜在的伸手可及的距离+1.8V.Asharp信号得到，当潜力搏动了是应用的， 由于被充电的或极性种类双层引起的电容潮流在电极浮出水面。 十次当前测量进行了，在每脉冲和每回归到0V之后， 但仅五他们(10， 20, 30, 和100 50女士)作为关键值和因而被考虑了， 仅这些被记录了。 扫瞄两次执行了得， 一次用载体在测量的细胞它把垒间线视为， 并且另一个，当样品在细胞。 PCbased测量系统自动地执行了基础线的减法对被测量的样品voltammogram。 一旦完成了测量， 运转的电极被交换了到下一个， 并且周期被重覆了，直到三个电极通过跑了。 完全周期为一个样品持续了在4 min。
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