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Electrochemical Techniques as a Tool for Catalysts' Characterization: VIMP and SECM – A Provocative Approach
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Author(s): Ricardo M. Hernández-Romero (Universidad de Los Andes, Venezuela)and Yris J. Martínez (Universidad de Los Andes, Venezuela)
Copyright: 2018
Pages: 43
Source title:
Advanced Solid Catalysts for Renewable Energy Production
Source Author(s)/Editor(s): Sergio González-Cortés (Oxford University, UK)and Freddy Emilio Imbert (Univsersidad de Los Andes, Venezuela)
DOI: 10.4018/978-1-5225-3903-2.ch012
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Abstract
Two recently developed electrochemical techniques are presented as tools for the characterization of solid surfaces with possible catalytic or electrocatalytic capacities. The techniques are the voltammetry of immobilized micro particles (VIMP) and the electrochemical scanning microscopy (SECM). The VIMP is a simple and economical technique that only requires basic electrochemical instrumentation. Higher sophistication is possible with relatively low investments for non-specialized laboratories. The SECM requires more investment and technical advice because it requires a somewhat sophisticated instrumentation not usually found in an electrochemical laboratory. However, associated costs are relatively low compared to other solid surface exploration techniques. The historical development, improvements over time, and some applications for surface characterization are presented for each technique. Finally, some cases of coupling with other techniques allowing the expansion of the capacities for the topographical and reactivity characterization of solid surfaces are briefly presented.
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