ABSTRACT

As shown in the previous chapters, scanning electrochemical microscopy (SECM) has become a popular and mature technique for the spatial characterization of surface reactivity and mass ªuxes at solid-liquid, liquid-liquid, and liquid-gas interfaces.1-3 A wide range of applications, extending from imaging-patterned sensor surfaces,4 measuring substance uptake and release from biological cells (see Chapter 12),5 investigating very fast electrochemical reactions,6 studying local corrosion (see Chapter 14),7 screening electrocatalysts and photocatalysts (see Chapter 16),8 forensic sciences,9 and surface modi–cation (see Chapter 15), demonstrate the versatility of the technique. Additionally, SECM has been successfully applied to samples with a spatial resolution ranging from nanometer to micrometer and to the study of a wide range of kinetic processes, made possible by using different electrode sizes and tip-substrate spacings.10-12 Finally, SECM has been coupled with different techniques to complement and con–rm the information extracted by SECM.13 These applications have been discussed in detail in this book, and in the present chapter we would like to explore new applications and prospects.