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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Performance of PrBaCo2O5+δ as a Proton-Conducting Solid-Oxide Fuel Cell Cathode
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Performance of PrBaCo2O5+δ as a Proton-Conducting Solid-Oxide Fuel Cell Cathode

机译：PrBaCo2O5 +δ作为质子传导固体氧化物燃料电池阴极的性能

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摘要

The potential application of PrBaCo2O5+δ (PBC) double perovskite oxide as a cathode for a proton-conducting solid-oxide fuel cell based on a BaZr0.1Ce0.7Y0.2O3-δ (BZCY) electrolyte was systematically investigated. XRD and O2-TPD results demonstrated that cation exchange between BZCY and PBC perovskites simultaneously occurs from the formation of Co3+-doped BZCY and Y3+-doped PBC. This event does not significantly change the cathodic polarization resistance. Under real fuel cell conditions, neither the electrolyte nor electrode resistances were significantly affected by the phase reaction and morphologic change of PBC. Anode-supported cells with an electrolyte thickness of 0 μm were successfully fabricated via a dual dry pressing process. Relatively high performance of 520 and 407 mW cm-2 at 700 °C was achieved for the cell with a PBC cathode fired at 950 and 1100 °C, respectively. A low electrode polarization resistance of 0.06 Ω cm2 was achieved at 700 °C for the PBC cathode calcined at 950 °C.
机译：系统地研究了PrBaCo2O5 +δ（PBC）钙钛矿双氧化物作为基于BaZr0.1Ce0.7Y0.2O3-δ（BZCY）电解质的质子传导固体氧化物燃料电池的阴极的潜在应用。 XRD和O2-TPD结果表明BZCY和PBC钙钛矿之间的阳离子交换是同时发生的，Co3 +掺杂的BZCY和Y3 +掺杂的PBC形成。此事件不会显着改变阴极极化电阻。在实际的燃料电池条件下，PBC的相反应和形态变化均不会显着影响电解质和电极电阻。通过双重干压工艺成功制备了电解质厚度为0μm的阳极支撑电池。对于PBC阴极分别在950和1100°C焙烧的电池，在700°C时可获得520和407 mW cm-2的较高性能。对于在950°C煅烧的PBC阴极，在700°C时可获得0.06Ωcm2的低电极极化电阻。

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