Effect of precious metal addition to Ni-YSZ cermet on reforming of CH4 and electrochemical activity as SOFC anode
Effect of precious metal addition to Ni-YSZ cermet on reforming of CH4 and electrochemical activity as SOFC anode
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DOI：
10.1016/s0920-5861(03)00278-5
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发表时间：
2003-09
期刊：
影响因子：
5.3
通讯作者：
T. Takeguchi;R. Kikuchi;T. Yano;K. Eguchi;M. Kazutoshi
中科院分区：
文献类型：
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作者：
T. Takeguchi;R. Kikuchi;T. Yano;K. Eguchi;M. Kazutoshi
在ni - y2o3稳定氧化锆（Ni-YSZ）陶瓷中加入多种贵金属，研究了ch4蒸汽重整与固体氧化物燃料电池（SOFC）阳极电化学活性的关系。Ru和Pt的加入促进了重整，抑制了焦炭的沉积。Ru和Pt的加入提高了SOFC阳极的电化学活性，表明这两种贵金属有效地发挥了阳极催化剂的作用。与气体扩散相关的阻抗大大降低，表明SOFC阳极催化剂的稳定性大大提高，因为几乎没有积炭。
Various kinds of precious metals were added to the Ni-Y2O3-stabilized zirconia (Ni-YSZ) cermets, and the relation between steam reforming of CH4and the electrochemical activity as a solid oxide fuel cell (SOFC) anode was investigated. Ru and Pt additions promoted the reforming and suppressed the coke depositions. The electrochemical activity of the SOFC anode was enhanced by the addition of Ru and Pt, indicating that these precious metals effectively functioned as the anode catalysts. The impedance related to gas diffusion was greatly reduced, indicating that stability of the anode catalyst of SOFC was considerably improved since coke was hardly deposited.