Abstract
The adsorption of cyanide(CN-) on electrodes of nanometer scale thin film of gold supported on glassy carbon(nm-Au/GC) in alkaline solutions were investigated using cyclic voltammetry and in situ FTIR spectroscopy.It has revealed that the electrodeposited nanostructured Au thin film exhibited AIREs(abnormal infrared effects) for CN-adsorption,which manifested 3 nonlinear IR spectral features: inversion of the direction of CN-band,enhancement of IR absorption of adsorbed CN-species(about 39.2 folds) and increase in the FWHM(full width at half maximum) of CN-band.
Keywords
cyanide adsorption, nanostructured Au thin film, in situ FTIR, AIREs
Publication Date
2008-05-28
Online Available Date
2008-05-28
Revised Date
2008-05-28
Received Date
2008-05-28
Recommended Citation
Chun-Hua ZHEN, Chun-Jie FAN, Shi-Gang SUN.
Cyclic Voltammetry and in situ FTIR Studies of Cyanide Adsorption on Nanostructured Au Film Electrode in Alkaline Solutions[J]. Journal of Electrochemistry,
2008
,
14(2): 218-222.
DOI: 10.61558/2993-074X.1895
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol14/iss2/22
References
[1]Huerta F,Mele C,Bozzini B,et al.Voltammetric andin situ FTIRS study on CN-and Au(CN)x-complexesat the polycrystalline gold surface in citrate medium[J].J Electroanal Chem,2004,569:53-60.
[2]Shue C H,Yau S L,Itaya K,In situ scanning tunnelingmicroscopy of Au(111)in acidic and alkaline potassiumcyanide[J].J Phys Chem B,2004,108:17433-17440.
[3]Bozzini B,Mele C,Romanello V.Time-dependent insitu SERS study of CN-adsorbed on gold[J].J Elec-toanal Chem,2006,592:25-30.
[4]Gao P,Weaver MJ.Vibrational coupling effects for cy-anide and aromatic adsorbates at gold electrodes:a com-parative study using surface Raman and infrared spec-troscopies[J].J Phys Chem,1989,93:6205-6211.
[5]Tadjeddine M,Flament J P.Analysis of a nonlinear op-tical response of CN-ions adsorbed on metal electrode:tentative interpretation by means of ab initio molecularcalculations[J].Chem Phys,1999,240:39-50.
[6]Zhen C H,Sun S G,Fan C J,et al.In situ FTIRS andEQCM studies of glycine adsorption and oxidation on Au(111)electrode in alkaline solutions[J].ElectrochemActa,2004,49(8):1249-1255.
[7]Zhen C H(甄春花),Fan C J(范纯洁),Gu Y J(谷艳娟),et al.Adsorption and oxidation of glycine on Aufilm electrodes in alkaline solutions[J].Acta Phys-Chem Sin,2003,19(1):60-64.
[8]Chen Q S,Sun S G,Yan J W,et al.Electrochemicalpreparation and structural characterization of Co thinfilms and their anomalous IR properties[J].Langmuir,2006,22(25):10575-10583.
[9]Sun S G.Abnormal infrared effects of nanometer-scalethin film material of platinum group metals and alloys atelectrode-electrolyte interfaces[M]//Catalysis and elec-trocatalysis at nanoparticle surfaces.New York:MarcelDekker Inc,2003.785-826.
[10]Sun S G,Zou Z Y,In situ microscope FTIR reflectionspectroscopy and its applications in electrochemical ad-sorption and electrocatalysis on nanostructured surfaces[M]//In situ spectroscopic studies of adsorption atthe electrode and electrocatalysis.Amsterdam:Elsevi-er,2007.139-178.
[11]Watanabe M,Uchida H,Miura M,et al.Electro-chemical quartz crystal microbalance study of copperad-atoms on highly ordered Au(111)electrodes in sul-furic acid[J].J Electroanal Chem,1995,384:191-195.
[12]Strbac S,Adzic R R.The influence of OH-chemi-sorption on the catalytic properties of gold single crystalsurfaces for oxygen reduction in alkaline solutions[J].J Electroanal Chem,1996,403:169-181.
[13]Bjerke A E,Griffiths P R.Surface-enhanced infraredabsorption spectroscopy of p-nitrothiophenol on vapor-deposited platinum films[J].Appl Spectrosc,2002,56(10):1275-1280.
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