ABSTRACT
The growing interest for zeolite molecular sieves in electrochemistry arises from the synergistic combination of the attractive properties of these materials with electrochemical interfaces. The attractive zeolite characteristics that are liable to affect the electron transfer reactions at an electrode-solution interphase are (a) the size and shape selectivity due to the rigid structure made of pores and channels of molecular dimensions; (b) the cationexchange capacity arising from the charge compensation of the negatively charged aluminosilicate lattice by mobile extraframework cations; and (c) the catalytic properties of both intrinsic and extrinsic sites of the microporous materials. This has led to the design, preparation, and use of various zeolite-modified electrodes, which form a sub-category of the so-called chemically modified electrodes (CMEs).
