A review on phosphate based, solid state, protonic conductors for intermediate temperature fuel cells
A review on phosphate based, solid state, protonic conductors for intermediate temperature fuel cells
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DOI：
10.1088/0953-8984/23/23/234110
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发表时间：
2011-06
期刊：
影响因子：
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通讯作者：
O. Paschos;J. Kunze;U. Stimming;F. Maglia
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文献类型：
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作者：
O. Paschos;J. Kunze;U. Stimming;F. Maglia
目前用于质子交换膜燃料电池的电解质主要基于聚合物，如Nafion，其将电池的操作范围限制在180 °C。固体氧化物燃料电池在比质子交换膜燃料电池（约1000 °C）高得多的温度下操作，并且使用氧化物电解质，例如钇稳定的氧化锆和钆掺杂的二氧化铈。到目前为止，尚未广泛探索中间温度操作制度（300 °C），这将为新型燃料电池系统开辟新的途径。本文综述了磷酸盐化合物作为中温燃料电池电解质的应用前景。介绍了聚磷酸铵、焦磷酸盐、磷酸铯等磷酸盐基电解质的制备方法、导电机理和电导率值。
The electrolytes currently used for proton exchange membrane fuel cells are mainly based on polymers such as Nafion which limits the operation regime of the cell to ∼ 80 °C. Solid oxide fuel cells operate at much elevated temperatures compared to proton exchange membrane fuel cells (∼1000 °C) and employ oxide electrolytes such as yttrium stabilized zirconia and gadolinium doped ceria. So far an intermediate temperature operation regime (300 °C) has not been widely explored which would open new pathways for novel fuel cell systems. In this review we summarize the potential use of phosphate compounds as electrolytes for intermediate temperature fuel cells. Various examples on ammonium polyphosphate, pyrophosphate, cesium phosphate and other phosphate based electrolytes are presented and their preparation methods, conduction mechanism and conductivity values are demonstrated.