Probing the Surface of Noble Metals Electrochemically by Underpotential Deposition of Transition Metals
| Autor: | Karine Servat, Nolwenn Mayet, Teko W. Napporn, K. Boniface Kokoh |
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| Přispěvatelé: | Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Nanoparticle chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry Electrocatalyst 01 natural sciences Transition metal [CHIM]Chemical Sciences Au Pd electrocatalysis Thin film Bimetallic strip underpotential deposition (upd) Pt 021001 nanoscience & nanotechnology Underpotential deposition cyclic voltammetry 0104 chemical sciences chemistry nanoparticles Cyclic voltammetry 0210 nano-technology Platinum |
| Zdroj: | Surfaces Volume 2 Issue 2 Pages 20-276 Surfaces, MDPI, 2019, 2 (2), pp.257-276. ⟨10.3390/surfaces2020020⟩ |
| ISSN: | 2571-9637 |
| DOI: | 10.3390/surfaces2020020 |
| Popis: | 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&rsquo surface. In the case of platinum, Bi and Ge adsorptions are singled out for probing (1 1 1) and (1 0 0) facets, respectively. |
| Databáze: | OpenAIRE |
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