Probing UPD-induced surface atomic rearrangement of polycrystalline gold nanofilms with surface plasmon resonance spectroscopy and cyclic voltammetry
文献类型:期刊论文
作者 | Jin YD ; Dong SJ |
刊名 | journal of physical chemistry b
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出版日期 | 2003 |
卷号 | 107期号:50页码:13969-13975 |
关键词 | UNDERPOTENTIAL DEPOSITION FORCE MICROSCOPY AU(111) SILVER AG ELECTRODES NANOPARTICLES NANOCRYSTALS ADSORPTION DISORDER |
ISSN号 | 1520-6106 |
通讯作者 | dong sj |
中文摘要 | silver underpotential deposition (upd)-induced surface atomic rearrangement of polycrystalline gold nanofilms was probed with use of surface plasmon resonance spectroscopy (sprs) as a novel probe tool in combination with cyclic voltammetry. interestingly, upon repetitive electrochemical upd and stripping of ag, the surface structure of the resulting bare au film is rearranged due to strong adatom-substrate interactions, which causes a large angle shift of spr r-theta curves, in a good linear relationship with the number of upds, to a lower spr angle. the n, k values of the surfacial au monolayers before and after the repetitive ag upd and stripping for 27 times are found to be 0.133, 3.60 and 0.565, 9.39, respectively, corresponding to the huge shift of 1.61degrees to the left of the spr minima. cyclic voltammetry experiments in 0.10 m h2so4 are carried out before and after the upd treatment to examine the quality of the whole electrode surface and confirmed this change. to correlate the angle change in sprs with the profile change in the cyclic voltammogram, the upd treatment was also performed on a au(111) textured thin film. it was therefore confirmed that the resonance position of the spr spectrum is very sensitive to the surface crystallographic orientation of the bare au substrates. some surface atomic rearrangement can cause a pronounced spr angle shift. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000187279200032 |
公开日期 | 2010-09-13 |
源URL | [http://202.98.16.49/handle/322003/17355] ![]() |
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 | Jin YD,Dong SJ. Probing UPD-induced surface atomic rearrangement of polycrystalline gold nanofilms with surface plasmon resonance spectroscopy and cyclic voltammetry[J]. journal of physical chemistry b,2003,107(50):13969-13975. |
APA | Jin YD,&Dong SJ.(2003).Probing UPD-induced surface atomic rearrangement of polycrystalline gold nanofilms with surface plasmon resonance spectroscopy and cyclic voltammetry.journal of physical chemistry b,107(50),13969-13975. |
MLA | Jin YD,et al."Probing UPD-induced surface atomic rearrangement of polycrystalline gold nanofilms with surface plasmon resonance spectroscopy and cyclic voltammetry".journal of physical chemistry b 107.50(2003):13969-13975. |
入库方式: OAI收割
来源:长春应用化学研究所
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