Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell

Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell were studied. La2NiO4 cathode showed stable performance in the presence of metallic interconnects. Comparing with the polarization resistance (Rp) of La2NiO4 cathode in the absence of metallic interconnects, Rp did not cha...

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Main Authors: Bingxue Hou, Cheng Cheng Wang, Xumei Cui, Yungui Chen
Format: Article
Language:English
Published: The Royal Society 2018-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180634
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author Bingxue Hou
Cheng Cheng Wang
Xumei Cui
Yungui Chen
author_facet Bingxue Hou
Cheng Cheng Wang
Xumei Cui
Yungui Chen
author_sort Bingxue Hou
collection DOAJ
description Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell were studied. La2NiO4 cathode showed stable performance in the presence of metallic interconnects. Comparing with the polarization resistance (Rp) of La2NiO4 cathode in the absence of metallic interconnects, Rp did not change in the presence of metallic interconnect. After electrical conductivity relaxation method, La2NiO4 with high surface oxygen diffusion coefficients working under Cr atmosphere improved the oxygen reduction kinetics and increased cathode O2 reduction reaction rates. No chromium deposition was observed on the La2NiO4 cathode surface after polarization for 20 h at 800°C. The chemical compatibility of La2NiO4/Cr2O3 and La2NiO4/Gd0.1Ce0.9O1.95 (GDC) study indicates that La2NiO4 did not react with Cr2O3 and GDC under the operating temperature. The results indicate that La2NiO4 cathode is a potential chromium-tolerant material of solid oxide fuel cell.
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spelling doaj.art-cee54f85557046869606f8a30ddd41082022-12-22T01:21:06ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-0151010.1098/rsos.180634180634Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cellBingxue HouCheng Cheng WangXumei CuiYungui ChenChromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell were studied. La2NiO4 cathode showed stable performance in the presence of metallic interconnects. Comparing with the polarization resistance (Rp) of La2NiO4 cathode in the absence of metallic interconnects, Rp did not change in the presence of metallic interconnect. After electrical conductivity relaxation method, La2NiO4 with high surface oxygen diffusion coefficients working under Cr atmosphere improved the oxygen reduction kinetics and increased cathode O2 reduction reaction rates. No chromium deposition was observed on the La2NiO4 cathode surface after polarization for 20 h at 800°C. The chemical compatibility of La2NiO4/Cr2O3 and La2NiO4/Gd0.1Ce0.9O1.95 (GDC) study indicates that La2NiO4 did not react with Cr2O3 and GDC under the operating temperature. The results indicate that La2NiO4 cathode is a potential chromium-tolerant material of solid oxide fuel cell.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180634chromium poisoningla2nio4impedance spectroscopyoxygen reductionsolid oxide fuel cell
spellingShingle Bingxue Hou
Cheng Cheng Wang
Xumei Cui
Yungui Chen
Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell
Royal Society Open Science
chromium poisoning
la2nio4
impedance spectroscopy
oxygen reduction
solid oxide fuel cell
title Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell
title_full Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell
title_fullStr Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell
title_full_unstemmed Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell
title_short Chromium deposition and poisoning of La2NiO4 cathode of solid oxide fuel cell
title_sort chromium deposition and poisoning of la2nio4 cathode of solid oxide fuel cell
topic chromium poisoning
la2nio4
impedance spectroscopy
oxygen reduction
solid oxide fuel cell
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180634
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AT chengchengwang chromiumdepositionandpoisoningofla2nio4cathodeofsolidoxidefuelcell
AT xumeicui chromiumdepositionandpoisoningofla2nio4cathodeofsolidoxidefuelcell
AT yunguichen chromiumdepositionandpoisoningofla2nio4cathodeofsolidoxidefuelcell