The time delay in electrochemical measurements of a finite-volume system
文献类型：期刊论文
| 作者 | Liang SA ; Guo QJ ; Dong XD |
| 刊名 | journal of electroanalytical chemistry
 |
| 出版日期 | 2009 |
| 卷号 | 633期号:1页码:235-239 |
| 关键词 | MAPPING CONCENTRATION PROFILES DIFFUSION-CONTROLLED CURRENT RANDOM-WALK ULTRAMICROELECTRODE PROBE AMPEROMETRIC MEASUREMENTS LIMITED NUMBER ELECTRODE CELL SIMULATION MOLECULES |
| ISSN号 | 1572-6657 |
| 通讯作者 | dong xd |
| 中文摘要 | for a sphere electrode enclosed in finite-volume electrolyte, the measured current will deviate from the result predicted by the semi-infinite diffusion theory after some time. by random-walk simulation, we compared this time to the one needed for diffusion layer to reach electrolyte boundary, and revealed a clear signal delay of electrochemical current. further we presented a quantitative description of this delay time. the simulation results suggested that the semi-infinite diffusion theory can even be applied when the theoretical diffusion layer grows to 1.28 electrolyte thicknesses, with an accuracy better than 0.5%. we attributed this time delay to the molecules' finite propagation velocity. finally, we discussed how this delay can influence and facilitate the following electrochemical detection towards the nanometer and single-cell scale. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000268938900032 |
| 公开日期 | 2010-06-18 |
| 源URL | [http://202.98.16.49/handle/322003/12907]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liang SA,Guo QJ,Dong XD. The time delay in electrochemical measurements of a finite-volume system[J]. journal of electroanalytical chemistry,2009,633(1):235-239. |
| APA | Liang SA,Guo QJ,&Dong XD.(2009).The time delay in electrochemical measurements of a finite-volume system.journal of electroanalytical chemistry,633(1),235-239. |
| MLA | Liang SA,et al."The time delay in electrochemical measurements of a finite-volume system".journal of electroanalytical chemistry 633.1(2009):235-239. |
入库方式： OAI收割
来源：长春应用化学研究所
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