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首页> 外文期刊>RSC Advances >Analysis of nanofiber-based La0.2Sr0.8TiO3-Gd0.2Ce0.8O1.9 electrode kinetics
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Analysis of nanofiber-based La0.2Sr0.8TiO3-Gd0.2Ce0.8O1.9 electrode kinetics

机译：基于纳米纤维的LA0.2SR0.8TIO3-GD0.2CE0.8O1.9电极动力学分析

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摘要

For the sake of comparison, a single cell with nanofiber-based LST-GDC composite anode (Cell-1) and a single cell with nanoparticle-based LST-GDC composite anode (Cell-2) are fabricated, respectively. The electrolyte ohmic resistances of the LST-GDC composite anode side half-cells are determined by an AC resistance measurement. Current interrupt is applied to measure the ohmic resistance of the half-cells. Combined with V-I characteristics, the influences of the potential drops caused by electrolyte ohmic resistance, electrode ohmic resistance and electrode electrochemical reaction on the cell kinetics are investigated. Under a current density of 0.6 A cm(-2) at 850 degrees C, for the nanofiber-based LST-GDC composite anode (NF-LST-GDC), the electrode ohmic potential drop is 0.007 V and the potential drop caused by the electrode electrochemical reaction is 0.080 V. While for the nanoparticle-based LST-GDC composite anode (NP-LST-GDC), the corresponding potential drops are 0.159 V and 0.246 V, respectively. Both the potential drops of the former are lower than those of the latter. The kinetics of Cell-1 is greater than Cell-2, i.e., the kinetics of NF-LST-GDC is greater than that of NP-LST-GDC.
机译：为了比较，分别制备了具有基于纳米纤维的LST-GDC复合阳极（Cell-1）的单细胞和具有基于纳米颗粒的LST-GDC复合阳极（Cell-2）的单细胞。通过AC电阻测量确定LST-GDC复合阳极侧半电池的电解质欧姆电阻。应用电流中断以测量半电池的欧姆电阻。结合V-I特性，研究了电解质欧姆电阻引起的电位下降，电极欧姆电阻和电极电化学反应对细胞动力学的影响。在850℃的电流密度下，对于纳米纤维的LST-GDC复合阳极（NF-LST-GDC），电极欧姆电位下降为0.007V，并且由此引起的潜在下降电极电化学反应为0.080V。当对于基于纳米颗粒的LST-GDC复合阳极（NP-LST-GDC），相应的电位下降分别为0.159V和0.246V。前者的潜在滴低于后者。细胞-1的动力学大于细胞-2，即NF-LST-GDC的动力学大于NP-LST-GDC的动力学。

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  • 来源
    《RSC Advances》 |2018年第62期|共6页
  • 作者

    Wang Yuwei; Zhao Erqing; Fan Liquan; Hu Qianjun; Liu Xijun; Li Yufeng; Xiong Yueping;

  • 作者单位

    Qiqihar Univ Heilongjiang Prov Key Lab Polymer Composite Mat Coll Mat Sci &

    Engn 42 Wenhua St Qiqihar 161006 Peoples R China;

    Henan Inst Sci &

    Technol Sch Chem &

    Chem Engn Xinxiang 453003 Peoples R China;

    Qiqihar Univ Heilongjiang Prov Key Lab Polymer Composite Mat Coll Mat Sci &

    Engn 42 Wenhua St Qiqihar 161006 Peoples R China;

    Harbin Inst Technol Sch Chem &

    Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers 92 West Dazhi St Mailbox 1247 Harbin 150001 Heilongjiang Peoples R China;

    Qiqihar Univ Heilongjiang Prov Key Lab Polymer Composite Mat Coll Mat Sci &

    Engn 42 Wenhua St Qiqihar 161006 Peoples R China;

    Qiqihar Univ Heilongjiang Prov Key Lab Polymer Composite Mat Coll Mat Sci &

    Engn 42 Wenhua St Qiqihar 161006 Peoples R China;

    Harbin Inst Technol Sch Chem &

    Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers 92 West Dazhi St Mailbox 1247 Harbin 150001 Heilongjiang Peoples R China;

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