An in situ scanning tunneling microscopic study of electrodeposition of bismuth on Au(111) in a 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid Precursor adsorption and underpotential deposition
An in situ scanning tunneling microscopic study of electrodeposition of bismuth on Au(111) in a 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid Precursor adsorption and underpotential deposition
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1-丁基-3-甲基咪唑鎓四氟硼酸盐离子液体中铋在 Au(111) 上电沉积的原位扫描隧道显微研究前驱体吸附和欠电位沉积
DOI:
10.1016/j.electacta.2010.05.023
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发表时间:
2010-11
影响因子:
6.6
通讯作者:
Mao, Bing-Wei
中科院分区:
文献类型:
--
作者:
Fu, Yong-Chun;Su, Yu-Zhuan;Zhang, Hai-Ming;Yan, Jia-Wei;Xie, Zhao-Xiong;Mao, Bing-Wei
In this article, the electrodeposition of Bi on Au(111) surface in the underpotential region in BMIBF4ionic liquid containing BiCl3is studied by cyclic voltammetry and in situ scanning tunneling microscopy (STM). The cyclic voltammogram shows several cathodic and anodic peaks associated with underpotential deposition (UPD) of Bi and dissolution of the UPD deposit, respectively, in the potential region between −0.38 and −0.7V versus Pt quasi-reference electrode. In situ STM results indicate there is a BiCl3precursor adsorption stage prior to the Bi UPD. The adsorption of BiCl3leads to the formation of unique hexagonal and trigonal supramolecular assembly with a Au(111)(10×10) structure. The initial stage of Bi UPD proceeds with the formation of Au(111)(7×7) R21.8° adlayer structure composed of Bi trigonal clusters at −0.5V. A structural transformation occurred at −0.6V resulting in a unique “zipper-like” double-chain pattern composed of well-aligned Bi trigonal clusters which can be denoted by Au(111)(5×25√3/3) structural model. The trigonal clusters composed of six Bi atoms seem to be the main characteristic elemental units of Bi UPD adlayer regardless of underpotential shift. These features are dramatically different from those observed in Bi(III)-containing acidic aqueous solutions as well as in chloroaluminated ionic liquid, but are similar to those of Sb UPD in BMIBF4ionic liquid, which reveals profound solvent effects on the electrodeposition of semimetals.
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影响因子:
4.5
作者:
C. Jung;C. Rhee
通讯作者:
C. Jung;C. Rhee
DOI:
10.1524/zpch.2007.221.9-10.1109
发表时间:
2007-10
期刊:
Zeitschrift für Physikalische Chemie
影响因子:
--
作者:
Yongchun Fu;Haiming Zhang;Yu-Zhuan Su;Depeng Wu;Zhaoxiong Xie;B. Mao
通讯作者:
Yongchun Fu;Haiming Zhang;Yu-Zhuan Su;Depeng Wu;Zhaoxiong Xie;B. Mao
影响因子:
--
作者:
Qiong Wu;W. Shang;Jiawei Yan;B. Mao
通讯作者:
Qiong Wu;W. Shang;Jiawei Yan;B. Mao
DOI:
10.1002/chin.200844242
发表时间:
2008-10
期刊:
ChemInform
影响因子:
--
作者:
P. Hapiot;C. Lagrost
通讯作者:
P. Hapiot;C. Lagrost
DOI:
10.1002/9783527621194
发表时间:
2002
期刊:
--
影响因子:
--
作者:
P. Wasserscheid;T. Welton
通讯作者:
P. Wasserscheid;T. Welton