采用循环伏安法和计时电流法,研究了强碱溶液中锌在金电极上的欠电位沉积.通过改变锌离子浓度和扫描速率等实验参数,在约-0.935 V(vs.SCE)开始出现锌的欠电位沉积,并且金属离子浓度的变化可能会影响到欠电位沉积过程的动力学机制；计时电流实验证实,锌欠电位沉积于金衬底上遵循的是受掺入吸附原子控制的二维瞬时成核和生长机制；且OH-离子的吸附对锌欠电位沉积具有重要的影响.
参考文献
| [1] | Wu H C,Yau S L.In Situ Scanning Tunneling Microscopy of Underpotential Deposition of Lead on Cu(100) in Sulfuric Acid Solutions[J].Phys Chem B,2001,105(29):6965-6971. |
| [2] | Huang J F.Silver UPD Ultra-thin Film Modified Nanoporous Gold Electrode with Applications in the Electrochemical Detection of Chloride[J].Talanta,2009,77:1694-1700. |
| [3] | ZHAO Jing,SUN Yue,LI Yongjun,et al.Preparation of Sandwich-Like'Au/Pt Composite Multilayer Films for Methanol Electrooxidation[J].Acta Phys Chim Sin,2011,27(8):1868-1874(in Chinese).赵静,孙越,李永军,等.三明治式多层Au/Pt复合薄膜的制备及其对甲醇的电氧化[J].物理化学学报,2011,27(8):1868-1874. |
| [4] | ZHANG Haiyan,CAO Chunhui,ZHAO Jian,et al.Recent Development of Pt-Based Core-Shell Structured Electrocatalysts in Fuel Cells[J].Chinese J Catal,2012,33(2):222-229(in Chinese).张海艳,曹春晖,赵健,等.燃料电池Pt基核壳结构电催化剂的最新研究进展[J].催化学报,2012,33(2):222-229. |
| [5] | JIA Bingyu,QIAO Zhiqing,WANG Chunming.The Analytical Application of the Underpotential Deposition Tin Monolayers on Gold Electrode[J].J Lanzhou Univ,2005,41(5):61-64(in Chinese).贾冰玉,乔志清,王春明.锡在金电极上的欠电位单层沉积的分析应用[J].兰州大学学报,2005,41(5):61-64. |
| [6] | LI Lanlan,WEI Zidong,YAN Can,et al.Methanol Oxidation on a Pt Electrode Modified by Underpotential Deposition of Ru[J].Acta Phys Chem Sin,2007,23(5):723-727(in Chinese).李兰兰,魏子栋,严灿,等.甲醇在欠电位沉积Ru修饰Pt电极上的催化氧化[J].物理化学学报,2007,23(5):723-727. |
| [7] | McIntyre J D E,Peck W F.Electrodeposition of Gold[J].J Electrochem Soc,1976,123(12):1800-1813. |
| [8] | Aramata A,Taguchi S,Fukuda T,et al.Underpotential Deposition of Zinc Ions at Single Crystal Electrodes and the Effect of the Adsorbed Anions[J].Electrochim Acta,1998,44:999-1007. |
| [9] | Díaz-Arista P,Meas Y,Ortega R,et al.Electrochemical and AFM Study of Zn Electrodeposition in the Presence of Benzylideneacetone in a Chloride-based Acidic Bath[J].J Appl Electrochem,2005,35:217-227. |
| [10] | Jonathan R I L,Rachel L O,Timothy J O,et al.X-ray Absorption Spectroscopy Characterization of Zn Underpotential Deposition on Au (111) from Phosphate Supporting Electrolyte[J].Electrochim Acta,2010,55:8532-8538. |
| [11] | Varga K,Szaloki I,Somogyi A,et al.In Situ Radiotracer and Voltammetric Study of Zn Electrosorption on Noble Metal Electrodes[J].J Electroanal Chem,2000,485(2):121-127. |
| [12] | Marczona R,Varga K.Adsorption Phenomena on Polycrystalline Gold Electrode Modified by Zn Adatoms[J].J Radioanal Nucl Chem,2006,269(1):29-42. |
| [13] | XU Shaoquan,XU Linyan.Coordination of Zinc with Hydroxo-ions in Aqueous Medium and Solubility Product for ε-Zn(OH)2 Crystal[J].J South China Normal Univ,2002,(4):7-9(in Chinese).许绍权,许聆彦.锌与羟基的配位作用及晶状氢氧化锌的溶度积[J].华南师范大学学报,2002,(4):7-9. |
| [14] | ZHEN Chunhua.Adsorption and Oxidation of Amino Acids on Au Electrodes of Different Structures in Alkaline Solutions[D].Xiamen:Xiamen University,2007(in Chinese).甄春花.碱性介质中氨基酸在不同结构金电极上的吸附和氧化[D].厦门:厦门大学,2007. |
| [15] | ZHU Wen,YANG Junyou,ZHOU Dongxiang,et al.Electrochemical Characterization of the Underpotential Deposition of Tellurium on Au Electrode[J].Acta Chim Sin,2007,52:3660-3666(in Chinese).朱文,杨君友,周东祥,等.碲在金电极上欠电位沉积的电化学行为[J].化学学报,2007,52:3660-3666. |
| [16] | Maestre M S,Rodríguez-Amaro R,Mu(n)oz E,et al.Use of Cyclic Voltammetry for Studying Two-dimensional Phase Transitions:Behaviour at Low Scan Rates[J].J Electroanal Chem,1994,373(1/2):31-37. |
| [17] | Ballesteros J C,Cha(i)net E,Ozil P,et al.Electrochemical Studies of Zn Underpotential/Overpotential Deposition on a Nickel Electrode from Non-cyanide Alkaline Solution Containing Glycine[J].Electrochim Acta,2011,56:5443-5451. |
| [18] | Heerman L,Tarallo A.Electrochemical Nucleation with Diffusion-limited Growth Properties and Analysis of Transients[J].Electrochem Comm,2000,2 (2):85-89. |
| [19] | Bewick A,Fleischmann M,Thirsk H R.Kinetics of the Electrocrystallization of Thin Films of Calomel[J].Trans Faraday Soc,1962,58 (479):2200-2216. |
| [20] | Trasatti S.Development of Work Function Approach to Underpotential Deposition of Metals-application to Hydrogen Evolution Reaction[J].Z Phys Chem,1975,98(1/6):75-94. |
| [21] | Ad(z)i(c) R R,Feddrix F,Nikoli(c) B Z,et al.The Elucidation of Hydrogen and Anion Adsorption on Pt(111) through the Coadsorption of Metal Adatoms and Carbon-monoxide[J].J Electroanal Chem,1992,341(1/2):287-306. |
| [22] | Taguchi S,Aramata A.Voltammetric Study of Underpotential Deposition (upd) of Zn2+ Ions on Pt (111):Effect of Adsorbed Anion[J].J Electroanal Chem,1995,396 (1):131-137. |
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