Nanoscale Imaging of Surface Topography and Reactivity with the Scanning Electrochemical Microscope

被引:76
作者
Laforge, Francois O. [1 ]
Velmurugan, Jeyavel [1 ]
Wang, Yixian [1 ]
Mirkin, Michael V. [1 ]
机构
[1] CUNY Queens Coll, Dept Chem & Biochem, Flushing, NY 11367 USA
基金
美国国家科学基金会;
关键词
ELECTRON-TRANSFER REACTIONS; ION TRANSFER; KINETICS; INTERFACE; DIFFUSION; CORROSION; SITES;
D O I
10.1021/ac900335c
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Over the last 2 decades, scanning electrochemical microscopy (SECM) has been extensively employed for topographic imaging and mapping surface reactivity on the micrometer scale. We used flat, polished nanoelectrodes as SECM tips to carry out feedback mode imaging of various substrates with nanoscale resolution. Constant-height and constant-current images of plastic and Au compact disc surfaces and more complicated objects (computer chips and wafers) were obtained. The possibility of simultaneous imaging of surface topography and electrochemical reactivity was demonstrated. Very fast mass transfer at nanoelectrodes allowed us to obtain high-quality electrochemical images in viscous media under steady-state conditions, e.g., in 1-methyl-3-octylimidazolium-bis(tetrafluoromethylsulfonyl)imide (C(8)mimC(1)C(1)N) ionic liquid. Ion-transfer-based imaging was also performed using nanopipets as SECM tips.
引用
收藏
页码:3143 / 3150
页数:8
相关论文
共 43 条
[11]   Scanning electrochemical Microscopy in nonusual solvents: Inequality of diffusion coefficients problem [J].
Ghilane, Jaial ;
Lagrost, Corinne ;
Hapiot, Philippe .
ANALYTICAL CHEMISTRY, 2007, 79 (19) :7383-7391
[12]   THE SCANNING ION-CONDUCTANCE MICROSCOPE [J].
HANSMA, PK ;
DRAKE, B ;
MARTI, O ;
GOULD, SAC ;
PRATER, CB .
SCIENCE, 1989, 243 (4891) :641-643
[13]   Electrochemical reactivity in room-temperature ionic liquids [J].
Hapiot, Philippe ;
Lagrost, Corinne .
CHEMICAL REVIEWS, 2008, 108 (07) :2238-2264
[14]   Scanning ion conductance microscopy of living cells [J].
Korchev, YE ;
Bashford, CL ;
Milovanovic, M ;
Vodyanoy, I ;
Lab, MJ .
BIOPHYSICAL JOURNAL, 1997, 73 (02) :653-658
[15]   Integrating an ultramicroelectrode in an AFM cantilever: Combined technology for enhanced information [J].
Kranz, C ;
Friedbacher, G ;
Mizaikoff, B .
ANALYTICAL CHEMISTRY, 2001, 73 (11) :2491-+
[16]   Comparative study of electron transfer reactions at the ionic liquid/water and organic/water interfaces [J].
Laforge, FO ;
Kakiuchi, T ;
Shigematsu, F ;
Mirkin, MV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (47) :15380-15381
[17]   PHYSICOCHEMICAL APPLICATIONS OF SCANNING ELECTROCHEMICAL MICROSCOPY [J].
Laforge, Francois O. ;
Sun, Peng ;
Mirkin, Michael V. .
ADVANCES IN CHEMICAL PHYSICS, VOL 139, 2008, 139 :177-244
[18]   Ionic liquids in electrochemical devices and processes: managing interfacial Electrochemistry [J].
Macfarlane, Douglas R. ;
Forsyth, Maria ;
Howlett, Patrick C. ;
Pringle, Jennifer M. ;
Sun, Jiazeng ;
Annat, Gary ;
Neil, Wayne ;
Izgorodina, Ekaterina I. .
ACCOUNTS OF CHEMICAL RESEARCH, 2007, 40 (11) :1165-1173
[19]  
Macpherson JV, 2001, MG ELEC CH, P521
[20]   Electrochemical imaging of diffusion through single nanoscale pores [J].
Macpherson, JV ;
Jones, CE ;
Barker, AL ;
Unwin, PR .
ANALYTICAL CHEMISTRY, 2002, 74 (08) :1841-1848