Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells

To enhance the contact between the electrolyte (source of O<sup>2−</sup>) and the carbon fuel in solid oxide–direct carbon fuel cells (SO-DCFCs), molten metals and molten salts were used in the anode chamber. Oxygen ions can dissolve and be transported in the molten medium to the anode t...

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Main Author: Ermete Antolini
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/13/7/1107
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author Ermete Antolini
author_facet Ermete Antolini
author_sort Ermete Antolini
collection DOAJ
description To enhance the contact between the electrolyte (source of O<sup>2−</sup>) and the carbon fuel in solid oxide–direct carbon fuel cells (SO-DCFCs), molten metals and molten salts were used in the anode chamber. Oxygen ions can dissolve and be transported in the molten medium to the anode three-phase boundary to reach and oxidize the carbon particles. To improve the sluggish kinetics of the electrochemical oxidation of carbon, the same molten media can act as redox mediators. Moreover, using a liquid metal/salt anode, tolerant to fuel impurities, the negative effect of carbon contaminants on cell performance is mitigated. In this work, an overview of SO-DCFCs with liquid metals, liquid carbonates, and mixed liquid metals/liquid carbonates in the anode chamber is presented and their performance was compared to that of conventional SO-DCFCs.
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spelling doaj.art-8706ac954df7453c9d8301535b922d8f2023-11-18T18:44:51ZengMDPI AGCatalysts2073-43442023-07-01137110710.3390/catal13071107Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel CellsErmete Antolini0Scuola di Scienza dei Materiali, Via 25 Aprile 22, 16016 Genova, ItalyTo enhance the contact between the electrolyte (source of O<sup>2−</sup>) and the carbon fuel in solid oxide–direct carbon fuel cells (SO-DCFCs), molten metals and molten salts were used in the anode chamber. Oxygen ions can dissolve and be transported in the molten medium to the anode three-phase boundary to reach and oxidize the carbon particles. To improve the sluggish kinetics of the electrochemical oxidation of carbon, the same molten media can act as redox mediators. Moreover, using a liquid metal/salt anode, tolerant to fuel impurities, the negative effect of carbon contaminants on cell performance is mitigated. In this work, an overview of SO-DCFCs with liquid metals, liquid carbonates, and mixed liquid metals/liquid carbonates in the anode chamber is presented and their performance was compared to that of conventional SO-DCFCs.https://www.mdpi.com/2073-4344/13/7/1107solid oxide fuel celldirect carbon fuel cellmolten anodemolten carbonates
spellingShingle Ermete Antolini
Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells
Catalysts
solid oxide fuel cell
direct carbon fuel cell
molten anode
molten carbonates
title Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells
title_full Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells
title_fullStr Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells
title_full_unstemmed Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells
title_short Molten Metals and Molten Carbonates in Solid Oxide Direct Carbon Fuel Cell Anode Chamber: Liquid Metal Anode and Hybrid Direct Carbon Fuel Cells
title_sort molten metals and molten carbonates in solid oxide direct carbon fuel cell anode chamber liquid metal anode and hybrid direct carbon fuel cells
topic solid oxide fuel cell
direct carbon fuel cell
molten anode
molten carbonates
url https://www.mdpi.com/2073-4344/13/7/1107
work_keys_str_mv AT ermeteantolini moltenmetalsandmoltencarbonatesinsolidoxidedirectcarbonfuelcellanodechamberliquidmetalanodeandhybriddirectcarbonfuelcells