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首页> 外文期刊>Journal of power sources >Development of a Ni-Ce_(0.8)Zr_(0.2)O_2 catalyst for solid oxide fuel cells operating on ethanol through internal reforming
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Development of a Ni-Ce_(0.8)Zr_(0.2)O_2 catalyst for solid oxide fuel cells operating on ethanol through internal reforming

机译:通过内部重整用于在乙醇上运行的固体氧化物燃料电池的Ni-Ce_(0.8)Zr_(0.2)O_2催化剂的开发

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摘要

Inexpensive 20wt.% N1-Ce_(0.8)Zr_(0.2)O_2 catalysts are synthesized by a glycine nitrate process (GNP) and an impregnation process (IMP). The catalytic activity for ethanol steam reforming (ESR) at 400-650 "C, catalytic stability and carbon deposition properties are investigated. Ni-Ceo.8Zro.2O2 (GNP) shows a higher catalytic performance than Ni-Ce_(0.8)Zr_(0.2)O_2 (IMP), especially at lower temperatures. It also presents a better coking resistance and a lower graphitization degree of the deposited carbon. The superior catalytic activity and coke resistance of Ni-Ceo.sZro.2O2 (GNP) is attributed to the small particle size of the active metallic nickel phase and the strong interaction between the nickel and the Ce_(0.8)Zr_(0.2)O_2 support, as evidenced by the XRD and H_2-TPR. The Ni-Ce_(0.8)Zr_(0.2)O_2 (GNP) is further applied as an anode functional layer in solid oxide fuel cells operating on ethanol steam. The cell yields a peak power density of 536 mWcm~2 at 700 ℃ when operating on EtOH-H_2O gas mixtures, which is only slightly lower than that of hydrogen fuel, whereas the cell without the functional layer failed for short-term operations. Ni-Ce_(0.8)Zr_(0.2)O_2 (GNP) is promising as an active and highly coking-resistant catalyst layer for solid-oxide fuel cells operating on ethanol steam fuel.
机译:通过硝酸甘氨酸法(GNP)和浸渍法(IMP)合成廉价的20wt。%的N1-Ce_(0.8)Zr_(0.2)O_2催化剂。研究了乙醇蒸汽重整(ESR)在400-650°C的催化活性,催化稳定性和碳沉积性能。Ni-Ceo.8Zro.2O2(GNP)的催化性能高于Ni-Ce_(0.8)Zr_( 0.2)O_2(IMP),尤其是在较低的温度下,它还具有更好的抗焦化性和沉积碳的石墨化度,Ni-Ceo.zZro.2O2(GNP)的优异催化活性和耐焦化性归因于XRD和H_2-TPR证明了活性金属镍相的粒径小,并且镍与Ce_(0.8)Zr_(0.2)O_2载体之间的强相互作用Ni-Ce_(0.8)Zr_(0.2) )O_2(GNP)进一步用作在乙醇蒸汽下工作的固体氧化物燃料电池的阳极功能层,在EtOH-H_2O混合气体下工作时,该电池在700℃时的峰值功率密度为536 mWcm〜2。略低于氢燃料,而没有功能层的电池在短期操作。 Ni-Ce_(0.8)Zr_(0.2)O_2(GNP)有望作为一种以乙醇蒸汽燃料为燃料的固体氧化物燃料电池的活性高抗焦化催化剂层。

著录项

  • 来源
    《Journal of power sources》 |2011年第15期|p.6177-6185|共9页
  • 作者单位

    State Key Laboratory of Materials-Oriented Chemical Engineering. College of Chemistry & Chemical Engineering,Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009, PR China;

    State Key Laboratory of Materials-Oriented Chemical Engineering. College of Chemistry & Chemical Engineering,Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009, PR China;

    State Key Laboratory of Materials-Oriented Chemical Engineering. College of Chemistry & Chemical Engineering,Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009, PR China;

    State Key Laboratory of Materials-Oriented Chemical Engineering. College of Chemistry & Chemical Engineering,Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009, PR China;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    solid oxide fuel cells; nickel/ceria-zirconia; ethanol steam reforming; carbon deposition; hydrogen production; catalyst layer;

    机译:固体氧化物燃料电池;镍/二氧化铈-氧化锆;乙醇蒸汽重整;碳沉积制氢催化剂层;

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