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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Stable BaCe_(0.5)Zr_(0.3)Y_(0.16)Zn_(0.04)O_(3-delta) electrolyte-based proton-conducting solid oxide fuel cells with layered SmBa_(0.5)Sr_(0.5)Co_2O_(5+delta) cathode
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Stable BaCe_(0.5)Zr_(0.3)Y_(0.16)Zn_(0.04)O_(3-delta) electrolyte-based proton-conducting solid oxide fuel cells with layered SmBa_(0.5)Sr_(0.5)Co_2O_(5+delta) cathode

机译：具有层状SmBa_（0.5）Sr_（0.5）Co_2O_（5 +δ）阴极的稳定BaCe_（0.5）Zr_（0.3）Y_（0.16）Zn_（0.04）O_（3-δ）电解质基质子传导固体氧化物燃料电池

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摘要

A stable, easily sintered perovskite oxide BaCe_(0.5)Zr_(0.3)Y_(0.16)Zn_(0.04)O_(3-delta) (BCZYZ) as electrolyte for proton-conducting solid oxide fuel cells with layered SmBa_(0.5)Sr_(0.5)Co_2O_(5+delta) (SBSC) cathode is investigated. Thin proton-conducting BCZYZ electrolyte is prepared over porous anode substrate composed of NiO-BCZYZ by the one-step dry-pressing/co-firing method. A laboratory-sized tri-layer cell of NiO-BCZYZ/BCZYZ (approx 17 mu m)/SBSC is operated from 550 to 700 deg C with humidified hydrogen (approx 3 percent H_2O) as fuel and the static air as oxidant. The BCZYZ perovskite electrolyte synthesized by a modified Pechini process is completely dense after sintered at 1250 deg C for 5 h, lower than that without Znic dopant about 150 deg C. An open-circuit potential of 1.007 V, a maximum power density of 0.306 Wcm~2, and a low polarization resistance of the electrodes of 0.11 OMEGA cm~2 are achieved at 700 deg C.
机译：一种稳定易烧结的钙钛矿氧化物BaCe_（0.5）Zr_（0.3）Y_（0.16）Zn_（0.04）O_（3-δ）（BCZYZ）作为电解质，用于质子传导固体氧化物燃料电池，具有层状SmBa_（0.5）Sr_（ 0.5）Co_2O_（5 +δ）（SBSC）阴极。通过一步干压/共烧法，在由NiO-BCZYZ组成的多孔阳极基底上制备了薄的质子传导BCZYZ电解质。 NiO-BCZYZ / BCZYZ（约17μm）/ SBSC的实验室大小的三层电池在550至700摄氏度的温度下工作，湿化氢（约3％H_2O）作为燃料，而静态空气作为氧化剂。通过改良的Pechini工艺合成的BCZYZ钙钛矿电解质在1250摄氏度下烧结5小时后完全致密，低于不含Znic掺杂剂的约150摄氏度。开路电位为1.007 V，最大功率密度为0.306 Wcm 〜2，并且在700摄氏度下实现了0.11 OMEGA cm〜2的低极化电阻。

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