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Excessive Na-Doped La0.75Sr0.25Cr0.5Fe0.4Cu0.1O3-δ Perovskite as an Additional Internal Reforming Catalyst for Direct Carbon Dioxide-Ethanol Solid Oxide Fuel Cells. Catalysts 2022. [DOI: 10.3390/catal12121600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Direct ethanol solid oxide fuel cells (SOFCs) are the most energy-efficient and low-carbon technology for renewable power generation from biomass fuels, but they are hindered by carbon deposition on the Ni-based cermet anode. In this work, excessive Na+ dopant into La0.75Sr0.25Cr0.5Fe0.4Cu0.1O3-δ (LSCFC) perovskite was used as an additional internal reforming catalyst for direct carbon dioxide-ethanol SOFCs. Excessive Na+-doped LSCFC (N-LSCFC) demonstrated great potential in promoting electrochemical performance and internal reforming process fueled by carbon dioxide-ethanol mixture, because more oxygen vacancies and the precipitated Cu nano catalyst were helpful for the improvement of internal reforming and carbon tolerance. Electrochemical investigations proved that the vertical-microchannel anode supported the single cells using the N-LSCFC-Gd0.1Ce0.9O2-δ (GDC) internal reforming catalyst, showing a peak power density of 1044.41 and 855.56 mW/cm2 at 800 °C fueled by H2 and 50% CO2-50% C2H5OH, respectively. The preceding results indicate that excessive Na+ doping strategy into LSCFC as the additional internal reforming catalyst can improve the electrochemical performance and internal reforming process of direct carbon dioxide-ethanol SOFCs.
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Majewski AJ, Singh SK, Labhasetwar NK, Steinberger-Wilckens R. Nickel–molybdenum catalysts for combined solid oxide fuel cell internal steam and dry reforming. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rath MK, Kossenko A, Kalashnikov A, Zinigrad M. Novel anode current collector for hydrocarbon fuel solid oxide fuel cells. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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