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首页> 外文期刊>Energy & fuels >Exsolved Alloy Nanoparticles Decorated Ruddlesden-Popper Perovskite as Sulfur-Tolerant Anodes for Solid Oxide Fuel Cells
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Exsolved Alloy Nanoparticles Decorated Ruddlesden-Popper Perovskite as Sulfur-Tolerant Anodes for Solid Oxide Fuel Cells

机译：exsolved合金纳米粒子装饰Ruddlesden-popper perovskite作为固用于固体氧化物燃料电池的硫 - 耐受性

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摘要

Solid oxide fuel cells (SOFCs) based on Ni-based cermet anodes suffer from severe sulfur poisoning when operated on H2S-containing fuels (10 ppm of H2S). Thus, the development of alternative anodes is of great importance. Perovskite oxides with Ruddlesden-Popper (RP) structure show great potential as sulfur-tolerant anodes in SOFCs; however, the electrocatalytic activity has not been satisfied until now. Herein, we propose a design strategy for the fabrication of alloy nanoparticles decorated RP perovskite through in situ exsolution using La0.6Sr0.4Ni0.2Mn0.2Fe0.6O3-delta and La0.6Sr0.4Co0.2Mn0.2Fe0.6O3-delta as the precursors. The formation of FeNi/FeCo alloy nanoparticles and their atomic ratios (Fe3Co2, Fe3Ni2) is confirmed. The Fe3Co2/La1.2Sr0.8Mn0.4Fe0.6O4-delta (RP-LSMF) anode displayed superior electro-activity for H-2 oxidation and excellent sulfur resistance to those of Fe3Ni2/RP-LSMF due to the higher amount of exsolved nanoparticles and the stronger interaction between exsolved nanoparticles and perovskite host. An electrolyte-supported SOFC with Fe3Co2/RP-LSMF anode delivers high peak power densities of 632 and 566 mW cm(-2) when operated on H-2 and 200 ppm of H2S-H-2 at 800 degrees C, respectively. Furthermore, the cell with Fe3Co2/RP-LSMF anode delivers a superior operational stability to that of Fe3Co2/RP-LSMF in 200 ppm of H2S-H-2 fuel. This work can present some useful guidance for the rational design of sulfur-resistant RP perovskite-based anodes for SOFCs.
机译：基于Ni的Cermet阳极的固体氧化物燃料电池（SOFC）在含H 2 S的燃料（H 2 S）上操作时患有严重的硫中毒。因此，替代阳极的发展具有重要意义。钙钛矿氧化物与Ruddlesden-popper（RP）结构显示出在SOFC中的耐硫阳极潜力存在巨大潜力;然而，直到现在，电催化活动尚未满足。在此，我们提出了一种使用LA0.6SR0.4NI0.2MN0.2FE0.6O3-DERTA和LA0.6SR0.4CO0.2MN0.2FE0.6O3-DELTA以原位展开装饰RP PEROVSKITE的合金纳米颗粒的制造的设计策略。前体。确认了FENI / FECO合金纳米颗粒及其原子比（Fe3CO2，Fe 3N2）的形成。 Fe3Co2 / La1.2SR0.8MN0.4FE0.6O4-DELTA（RP-LSMF）阳极针对H-2氧化的优异电动活性和由于较高量的exsolved纳米颗粒，对Fe3Ni2 / RP-LSMF的优异耐硫耐药性exsolved纳米粒子和钙钛矿宿主之间的相互作用更强。当在800℃下的H-2和200ppm的H 2 S-H-2上操作时，具有Fe3CO2 / RP-LSMF阳极的电解质支持的SOFC提供高峰值功率密度为632和566mW cm（-2）。此外，具有Fe3CO2 / RP-LSMF阳极的细胞在200ppm的H2S-H-2燃料中提供了优异的Fe3CO2 / RP-LSMF的操作稳定性。这项工作对于SOFCS的耐硫抗性RP钙钛矿阳极的合理设计提供了一些有用的指导。

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  • 来源
    《Energy & fuels》 |2020年第9期|11449-11457|共9页
  • 作者

    Li Haidong; Song Yufei; Xu Meigui; Wang Wei; Ran Ran; Zhou Wei; Shao Zongping;

  • 作者单位

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China;

    Nanjing Tech Univ Coll Chem Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Peoples R China|Curtin Univ WA Sch Mines Minerals Energy & Chem Engn WASM MEC Perth WA 6845 Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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