Oxide-ion and Proton Conducting Electrolyte Materials for Clean Energy Applications: Structural and Mechanistic Features
Oxide-ion and Proton Conducting Electrolyte Materials for Clean Energy Applications: Structural and Mechanistic Features
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DOI：
10.1002/chin.201105213
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发表时间：
2011-02
期刊：
影响因子：
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通讯作者：
L. Malavasi;C. Fisher;M. Islam
中科院分区：
文献类型：
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作者：
L. Malavasi;C. Fisher;M. Islam
这篇批判性评论概述了各种类型的氧化物材料，这些材料具有快速的氧化物离子或质子传导性，可用作固体氧化物燃料电池等清洁能源应用中的固体电解质。重点放在晶体材料的结构和机械特征与其离子传导性能之间的关系。在描述了萤石基和钙钛矿基氧化物等成熟类别之后，介绍了新材料和结构类型。这些包括各种钼酸盐、没食子酸盐、磷灰石硅酸盐/锗酸盐和铌酸盐系统，其中许多包含灵活的结构网络，并表现出与传统材料不同的缺陷特性和传输机制。结论是，这些重要系统的丰富化学成分为开发用作燃料电池和相关应用中的固体电解质的优质离子导体提供了多种可能性。在大多数情况下，对结构、缺陷和传导机制的更深入的原子级理解是通过实验和计算技术的结合来实现的（217 篇参考文献）。
This critical review presents an overview of the various classes of oxide materials exhibiting fast oxide-ion or proton conductivity for use as solid electrolytes in clean energy applications such as solid oxide fuel cells. Emphasis is placed on the relationship between structural and mechanistic features of the crystalline materials and their ion conduction properties. After describing well-established classes such as fluorite- and perovskite-based oxides, new materials and structure-types are presented. These include a variety of molybdate, gallate, apatite silicate/germanate and niobate systems, many of which contain flexible structural networks, and exhibit different defect properties and transport mechanisms to the conventional materials. It is concluded that the rich chemistry of these important systems provides diverse possibilities for developing superior ionic conductors for use as solid electrolytes in fuel cells and related applications. In most cases, a greater atomic-level understanding of the structures, defects and conduction mechanisms is achieved through a combination of experimental and computational techniques (217 references).