Investigation of facilitated ion-transfer reactions at high driving force by scanning electrochemical Microscopy
文献类型：期刊论文
| 作者 | Li F ; Chen Y ; Sun P ; Zhang MQ ; Gao Z ; Zhan DP ; Shao YH |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2004 |
| 卷号 | 108期号:10页码:3295-3302 |
| 关键词 | IMMISCIBLE ELECTROLYTE-SOLUTIONS LIQUID-LIQUID INTERFACE LIQUID/LIQUID INTERFACES POLARIZATION PHENOMENA CHARGE-TRANSFER MICROPIPET ELECTRODES POTENTIAL DEPENDENCE CYCLIC VOLTAMMETRY TRANSFER RATES POTASSIUM-ION |
| ISSN号 | 1520-6106 |
| 通讯作者 | shao yh |
| 中文摘要 | the kinetics of facilitated ion-transfer (fit) reactions at high driving force across the water/1,2-dichloroethane (w/dce) interface is investigated by scanning electrochemical microscopy (secm). the transfers of lithium and sodium ions facilitated by dibenzo-18-crown-6 (db18c6) across the polarized w/dce interface are chosen as model systems because they have the largest potential range that can be controlled externally. by selecting the appropriate ratios of the reactant concentrations (kr c(m)+/c(db18c6)) and using nanopipets as the secm tips, we obtained a series of rate constants (k(f)) at various driving forces (delta(o)(w) phi(ml+)(0') - es, delta(o)(w) phi(ml+)(0') is the formal potential of facilitated ion transfer and es is the potential applied externally at the substrate interface) based on a three-electrode system. the fit rate constants k(f) are found to be dependent upon the driving force. when the driving force is low, the dependence of 1n k(f) on the driving force is linear with a transfer coefficient of about 0.3. it follows the classical butler-volmer theory and then reaches a maximum before it decreases again when we further increase the driving forces. this indicates that there exists an inverted region, and these behaviors have been explained by marcus theory. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000220093900027 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://202.98.16.49/handle/322003/15785]  |
| 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 | Li F,Chen Y,Sun P,et al. Investigation of facilitated ion-transfer reactions at high driving force by scanning electrochemical Microscopy[J]. journal of physical chemistry b,2004,108(10):3295-3302. |
| APA | Li F.,Chen Y.,Sun P.,Zhang MQ.,Gao Z.,...&Shao YH.(2004).Investigation of facilitated ion-transfer reactions at high driving force by scanning electrochemical Microscopy.journal of physical chemistry b,108(10),3295-3302. |
| MLA | Li F,et al."Investigation of facilitated ion-transfer reactions at high driving force by scanning electrochemical Microscopy".journal of physical chemistry b 108.10(2004):3295-3302. |
入库方式： OAI收割
来源：长春应用化学研究所
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