Solid-liquid interfaces, scanning electrochemical microscopy

Barker A L, Gonsalves M, Maepherson J V, Slevin C J and Unwin P R 1999 Scanning electrochemical microscopy beyond the solid/liquid interface Anal. Chim. Acta 385 223... 

In scanning electrochemical microscopy (SECM) a microelectrode probe (tip) is used to examine solid-liquid and liquid-liquid interfaces. SECM can provide information about the chemical nature, reactivity, and topography of phase boundaries. The earlier SECM experiments employed microdisk metal electrodes as amperometric probes [29]. This limited the applicability of the SECM to studies of processes involving electroactive (i.e., either oxidizable or reducible) species. One can apply SECM to studies of processes involving electroinactive species by using potentiometric tips [36]. However, potentio-metric tips are suitable only for collection mode measurements, whereas the amperometric feedback mode has been used for most quantitative SECM applications. 

Barker, A. L., Gonsalves, M., MacPherson, 1. V., Slevin, C. 1. and Unwin, P. R. (1999), Scanning electrochemical microscopy Beyond the solid/liquid interface. Anal. Chim. Acta, 385(1-3) 223-240. 

H Shiku, Y Hara, T Takeda, T Matsue, I Uchida. Microfabrication and characterization of solid surfaces patterned with enzymes or antigen-antibodies by scanning electrochemical microscopy. In G Jerkiewiecz, MP Soriaga, K Uosaki, A Wieckowski, eds. Solid-Liquid Electrochemical Interfaces. Washington, DC ACS, 1997, pp 202-209. 

Unwin PR, Bard AJ (1992) Scanning electrochemical microscopy. 14. Scanning electrochemical microscope induced desorption - a new technique for the measurement of adsorption desorption-kinetics and surface-diffusion rates at the solid liquid interface. J Phys Chem 96(12) 5035-5045... 

Electron Spectroscopy and Electrochemical Scanning Tunneling Microscopy of the Solid—Liquid Interface lodine-Catafyzed Dissolution of Pd(llO)... 

Wang, D. Wan, L.-J. 2007. Electrochemical scanning tunneling microscopy Adlayer structure and reaction at solid/liquid interface. J. Phys. Chem. C 111 16109-16130. 

FIGURE 5.5 Simulated SECM current vs. distance curves for a pure (A) positive and (B) negative feedbaek and different RG values. Symbols, simulation solid line in (A), Equation 5.30 solid line in (B), Equation 5.31. (A) RG=(1) 10 and (2) 1.1. (B) RG=(1) 1.1, (2) 2, and (3) 10. (Reprinted from Shao, Y. and Mirkin, M.V., Probing ion transfer at the liquid/liquid interface by scanning electrochemical microscopy (SECM), J. Phys. Chem. B, 102, 9915-9921,1998. Copyright 1998 American Chemical Society.)... 

This chapter is concerned with the study of interfacial processes and reactions that occur essentially at electrically insulating interfaces, where the role of the SECM tip is often to induce and monitor the reaction of interest. The work herein is an update of Chapter 12 Probing reactions at solid/liquid interfaces of the first edition of Scanning Electrochemical Microscopy [4] and highlights how the basic principles of the SECM-induced transfer (SECMIT) mode (or equilibrium perturbation mode) and related techniques— notably (multi-) potential step transient methods—can be applied to a wide variety of interfaces where flux measurements have traditionally been difficult. 

Macpherson, J. V., Unwin, P. R. Probing reactions at Solid/Liquid Interfaces, In Scanning Electrochemical Microscopy, Bard, A. J., Mirkin, M. V. (eds.). Marcel Dekker, New York, 2001, Chap. 12, pp. 521-592. 

Electrochemical scanning tunneling microscopy (ECSTM) is a very useful technique for investigating electrochemical processes at the solid-liquid interface at extremely high ( sub-A to nm level)... 

Forrer P, Repphun G, Schmidt E, Siegenthaler H (1997) Electroactive polymers an electrochemical and in situ scanning probe microscopy study. In Jerkiewicz G, Soriaga MP, Uosaki K, Wieckowski A (eds) Solid-liquid electrochemical interfaces (ACS Symp Ser 656). American Chemical Society, Washington, DC, p210 Malhotra BD, Chaubey A, Singh SP (2006) Anal Chem Acta 578 59 Biallozor S, Kupniewska A (2005) Synth Met 155 443... 

Itaya, K., Batina, N., Kunitake, M. etal. (1997) In situ scanning tunneling microscopy of organic molecules adsorbed on iodine-modified Au( 111), Ag( 111), and Pt( 111) electrodes. Solid-Liquid Electrochemical Interfaces. ACS Symposium Series, 656, 171-188. 

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