| 利用快速扫描伏安法测定醋酸根和甲酸根在铂(111)电极上吸附等温线 (cited: 3) |
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| 引用本文： | 徐杰,林楚红,梅东,张尊彪,袁道福,陈艳霞. 利用快速扫描伏安法测定醋酸根和甲酸根在铂(111)电极上吸附等温线 (cited: 3)[J]. 化学物理学报, 2013, 26(2): 191-197 |
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| 作者姓名： | 徐杰 林楚红 梅东 张尊彪 袁道福 陈艳霞 |
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| 作者单位： | 中国科学技术大学化学物理系，合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学化学物理系，合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学化学物理系，合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学化学物理系，合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学化学物理系，合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学化学物理系，合肥微尺度物质科学国家实验室(筹)，合肥230026 |
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| 摘 要： | 快速扫描伏安法是一种可以用来区分氧化/还原，吸附/脱附反应的有效工具. 这里，我们将提供一种新的方法，在一种相对浓度较低的反应物溶液中，利用不同的电位扫描速率(相对于扩散速率)，可以得到电极表面的吸附/脱附过程的等温线. 本文将以醋酸根在酸性溶液中在Pt(111)上吸附作为例子，并将此方法扩展到复杂的甲酸氧化反应机理研究中.
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| 关 键 词： | 吸附，脱附，Pt(111)，醋酸根，甲酸根 |
| 收稿时间： | 2012-12-31 |
Determination of Isotherm for Acetate and Formate Adsorption at Pt(111) Electrode by Fast Scan Voltammetry (cited: 3) |
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| Jie Xu,Chu-hong Lin,Dong Mei,Zun-biao Zhang,Dao-fu Yuan and Yan-xia Chen. Determination of Isotherm for Acetate and Formate Adsorption at Pt(111) Electrode by Fast Scan Voltammetry (cited: 3)[J]. Chinese Journal of Chemical Physics, 2013, 26(2): 191-197 |
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| Authors: | Jie Xu Chu-hong Lin Dong Mei Zun-biao Zhang Dao-fu Yuan Yan-xia Chen |
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| Affiliation: | Hefei National Laboratory for Physical Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Hefei National Laboratory for Physical Science at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Fast scan voltammetry is an efficient tool to distinguish oxidative/reductive adsorp-tion/desorption from that for bulk reaction. In this work, we provide a methodology that the isotherm of oxidative/reductive adsorption desorption processes at electrode surface canbe obtained using just one solution with relatively low reactant concentration, by taking the advantage of varying the potential scan rate (relative of the diffusion rate) to tune the adsorption rate and proper mathematic treatment. The methodology is demonstrated bytaking acetate adsorption at Pt(111) in acidic solution as an example. The possibility for ex-tension of this method toward mechanistic studies of complicated electrocatalytic reactions is also given. |
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| Keywords: | Adsorption Desorption Pt(111) Acetate anion Formate anion |
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