Experimental Techniques and Structure of the Underpotential Deposition Phase

Oviedo, Oscar Alejandro; Reinaudi, Luis; García, Sara Mallén; Leiva, E.P.M.

doi:10.1007/978-3-319-24394-8_2

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A Methods Of Characterization: Cyclic Voltammetry1

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2019

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“…Different techniques can be employed to characterize upd layers [10]. Cyclic voltammetry is the method most used for carrying out the upd of a metal over a substrate.…”

Section: A Methods Of Characterization: Cyclic Voltammetrymentioning

confidence: 99%

Probing the Surface of Noble Metals Electrochemically by Underpotential Deposition of Transition Metals

et al. 2019

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The advances in material science have led to the development of novel and various materials as nanoparticles or thin films. Underpotential deposition (upd) of transition metals appears to be a very sensitive method for probing the surfaces of noble metals, which is a parameter that has an important effect on the activity in heterogeneous catalysis. Underpotential deposition as a surface characterization tool permits researchers to precisely determine the crystallographic orientations of nanoparticles or the real surface area of various surfaces. Among all the work dealing with upd, this review focuses specifically on the main upd systems used to probe surfaces of noble metals in electrocatalysis, from poly‒ and single-crystalline surfaces to nanoparticles. Cuupd is reported as a tool to determine the active surface area of gold‒ and platinum‒based bimetallic electrode materials. Pbupd is the most used system to assess the crystallographic orientations on nanoparticles’ surface. In the case of platinum, Bi and Ge adsorptions are singled out for probing (1 1 1) and (1 0 0) facets, respectively.

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“…Different techniques can be employed to characterize upd layers [10]. Cyclic voltammetry is the method most used for carrying out the upd of a metal over a substrate.…”

Section: A Methods Of Characterization: Cyclic Voltammetrymentioning

confidence: 99%