Surface electrochemistry and reactivity Autors/ores Juan M. Feliu Institute of Electrochemistry, University of Alacant Enrique Herrero Institute of Electrochemistry, University of Alacant Resum Here we review the building blocks of platinum electrodes in surface electrochemistry. These blocks are primarily related to the surface topography because the correct electrochemical responses of wide terraces and the effect of steps of different symmetry and kink sites are important for in situ characterization. Anion adsorption also plays a key role inthe fingerprint features associated with surface topography.Additionally, competitive adsorption of anions and other species in solution have important consequences for reactivity.Likewise, adatom adsorption is a structure-sensitive processthat affects the surface composition of the electrode. Two cases can be considered, depending on whether the adatomforms more than a single stable layer in the potential regionusually scanned. In the latter case, when multilayers are generated, the results can be compared with those obtained from the corresponding single-crystal electrodes, with the possibility to compare the characteristic behaviors of the two systems. Descàrregues PDF (English) Número Vol. 6 Núm. 2 (2010): International Year of Chemistry: Special Issue / Salvador Alegret, Guest Editor Secció Research reviews Llicència This work, including photographs and other illustrations, unless the contrary is indicated, is subject to an Attributions–Non-Commercial–No Derivative Works 3.0 Creative Commons License, the full text of which can be consulted at http://creativecommons.org/licenses/by-nc-sa/3.0/. You are free to share, copy, distribute and transmit the work provided that the author is credited and reuse of the material is restricted to non-commercial purposes only and that no derivative works are created from the original material.