Electrochemical scanning tunneling microscopy and electrochemical quartz crystal microbalance study of the adsorption of phenanthraquinone accompanied by an electrochemical redox reaction on the Au electrode
文献类型：期刊论文
| 作者 | He YF ; Wang Y ; Zhu GY ; Wang EK |
| 刊名 | journal of electroanalytical chemistry
 |
| 出版日期 | 1997 |
| 卷号 | 440期号:1-2页码:65-72 |
| 关键词 | ATOMIC-FORCE MICROSCOPE MONOLAYER GUANINE GOLD ELECTRODES NACL SOLUTION SURFACE GRAPHITE AU(111) INSITU DISSOLUTION PLATINUM |
| ISSN号 | 0022-0728 |
| 通讯作者 | wang ek |
| 中文摘要 | in situ electrochemical scanning tunneling microscopy (ecstm) and an electrochemical quartz crystal microbalance (eqcm) have been employed to follow the adsorption/desorption processes of phenanthraquinone (pq sat. in 0.1 mol l(-1) hclo4, solution) accompanied with an electrochemical redox reaction on the au electrode. the result shows that: (1) the reduced form pqh(2) adsorbed at the au electrode and the desorption occurred when pqh(2) was oxidized to pq; (2) the adsorption process initiates at steps or kinks which provide high active sites on the electrode surface for adsorption, and as the potential shifts to negative, a multilayer of pqh(2) may be formed at the au electrode; (3) the reduced pqh(2) adsorbed preferentially in the area where the tip had been scanned continually; this result suggests that the tip induction may accelerate the adsorption of pqh(2) on the au(111) electrode. two kinds of possible reason have been discussed; (4) high resolution stm images show the strong substrate lattice information and the weak monolayer adsorbate lattice information simultaneously. the pqh(2) molecules pack into a not perfectly ordered condensed physisorbed layer at potentials of 0.1 and 0.2 v with an average lattice constant a = 11.5 +/- 0.4 angstrom, b = 11.5 +/- 0.4 angstrom, and gamma = 120 +/- 2 degrees; the molecular lattice is rotated with respect to the substrate lattice by about 23 +/- 2 degrees. (c) 1997 elsevier science s.a. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000071823700007 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://202.98.16.49/handle/322003/23855]  |
| 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 | He YF,Wang Y,Zhu GY,et al. Electrochemical scanning tunneling microscopy and electrochemical quartz crystal microbalance study of the adsorption of phenanthraquinone accompanied by an electrochemical redox reaction on the Au electrode[J]. journal of electroanalytical chemistry,1997,440(1-2):65-72. |
| APA | He YF,Wang Y,Zhu GY,&Wang EK.(1997).Electrochemical scanning tunneling microscopy and electrochemical quartz crystal microbalance study of the adsorption of phenanthraquinone accompanied by an electrochemical redox reaction on the Au electrode.journal of electroanalytical chemistry,440(1-2),65-72. |
| MLA | He YF,et al."Electrochemical scanning tunneling microscopy and electrochemical quartz crystal microbalance study of the adsorption of phenanthraquinone accompanied by an electrochemical redox reaction on the Au electrode".journal of electroanalytical chemistry 440.1-2(1997):65-72. |
入库方式： OAI收割
来源：长春应用化学研究所
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