Approach to Microbial Fuel Cells and Their Applications

Approach to Microbial Fuel Cells and Their Applications

Approach to Microbial Fuel Cells and Their Applications

As outlined in this book, an important group of research papers in electrochemistry
deal with the investigation of adsorbed layers on electrode surfaces. As a first simple
case, almost universally present in electrode–solution interfaces, anion-specific
adsorption on metal electrodes, including single crystals, is a classical topic in
textbooks [1]. The complexity of the problem increases when dealing with further
adatom adsorption, in which hydrogen and underpotential deposition of foreign metals
on higher-workfunction metallic substrates could betaken as examples, becauseinthis
case anion adsorption will also take place [2,3]. Increasing the complexity of the
adsorbate, the adsorption of small molecules such as CO or NO, on well-characterized
electrode surfaces has supplied a number of probe reactions whose quantitative
characteristics, including molecular coverage, have to be consistently incorporated
in the scenario defined for simpler systems [4,5]. Indeed, the reactions undergone by
these adsorbed molecules are now considered as model surface reactions.
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