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Electrolysis of Highly Concentrated FeCl2 Solution for Energy Storage in Solid Matter
Uroš Luin, 2020, published scientific conference contribution abstract

Found in: ključnih besedah
Keywords: Energy storage, FeCl2(aq) electrolysis
Published: 11.12.2020; Views: 1213; Downloads: 0
.pdf Fulltext (22,13 MB)

Synthesis of molybdenum carbide thin films for production of hydrogen via electrochemical water splitting
Cesur Altinkaya, 2018, master's thesis

Found in: ključnih besedah
Summary of found: ...thin films, hydrogen evolution reaction, water splitting, electrolysis, electrochemistry, pyrolysis, thin films...
Keywords: molybdenum, platinum, molybdenum carbide thin films, hydrogen evolution reaction, water splitting, electrolysis, electrochemistry, pyrolysis, thin films
Published: 30.08.2018; Views: 3458; Downloads: 0
.pdf Fulltext (5,05 MB)

Electrolysis energy efficiency of highly concentrated FeCl[sub]2 solutions for power-to-solid energy storage technology
Matjaž Valant, Uroš Luin, 2022, original scientific article

Abstract: An electrochemical cycle for the grid energy storage in the redox potential of Fe involves the electrolysis of a highly concentrated aqueous FeCl2 solution yielding solid iron deposits. For the high overall energy efficiency of the cycle, it is crucial to maximize the energy efficiency of the electrolysis process. Here we present a study of the influence of electrolysis parameters on the energy efficiency of such electrolysis, performed in an industrial-type electrolyzer. We studied the conductivity of the FeCl2 solution as a function of concentration and temperature and correlated it with the electrolysis energy efficiency. The deviation from the correlation indicated an important contribution from the conductivity of the ion-exchange membrane. Another important studied parameter was the applied current density. We quantitatively showed how the contribution of the resistance polarization increases with the current density, causing a decrease in overall energy efficiency. The highest energy efficiency of 89 ± 3% was achieved using 2.5 mol L−1 FeCl2 solution at 70 °C and a current density of 0.1 kA m−2. In terms of the energy input per Fe mass, this means 1.88 Wh g−1. The limiting energy input per mass of the Fe deposit was found to be 1.76 Wh g−1.
Found in: ključnih besedah
Keywords: electrolysis, ferrous chloride, iron deposition, energy efficiency
Published: 16.02.2022; Views: 328; Downloads: 10
.pdf Fulltext (1,99 MB)
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