Improvement of Qualitative Analyses of Aliphatic Alcohols Using Direct Catalytic Fuel Cell and Chemometric Analysis Format.

Autor: Tomassetti M; Department of Chemistry, University of Rome, 'La Sapienza', P.le A. Moro 5, 00185 Rome, Italy., Marini F; Department of Chemistry, University of Rome, 'La Sapienza', P.le A. Moro 5, 00185 Rome, Italy., Pezzilli R; Department of Industrial Engineering, University of Rome 'Tor Vergata', Via del Politecnico 1, 00133 Rome, Italy., Castrucci M; Department of Chemistry, University of Rome, 'La Sapienza', P.le A. Moro 5, 00185 Rome, Italy., Di Natale C; Department of Electronic Engineering, University of Rome 'Tor Vergata', Via del Politecnico 1, 00133 Rome, Italy., Campanella L; Department of Chemistry, University of Rome, 'La Sapienza', P.le A. Moro 5, 00185 Rome, Italy.
Jazyk: angličtina
Zdroj: Sensors (Basel, Switzerland) [Sensors (Basel)] 2024 May 18; Vol. 24 (10). Date of Electronic Publication: 2024 May 18.
DOI: 10.3390/s24103209
Abstrakt: Direct catalytic methanol fuel cells (DCMFCs) have been studied for several years for energy conversion. Less extensive is the investigation of their analytical properties. In this paper, we demonstrate that the behavior of both the discharge and charger curves of DCMFCs depends on the chemical composition of the solution injected in the fuel cell. Their discharge and charge curves, analyzed using a chemometric data fusion method named ComDim, enable the identification of various types of aliphatic alcohols diluted in water. The results also show that the identification of alcohols can be obtained from the first portion of the discharge and charge curves. To this end, the curves have been described by a set of features related to the slope and intercept of the initial portion of the curves. The ComDim analysis of this set of features shows that the identification of alcohols can be obtained in a time that is about thirty times shorter than the time taken to achieve steady-state voltage.
Databáze: MEDLINE
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