Interdisciplinary Studies to Characterise and Optimise Novel Apatite-Type Fast-Ion Conductors

表征和优化新型磷灰石型快离子导体的跨学科研究

• 批准号: EP/F013884/1
• 负责人: Mark Smith
• 金额: $ 3.53万
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FF013884%2F1
• 关键词: Interdisciplinary; Studies; Characterise; Optimise; Novel

The proposed research will build upon previous success with a combined programme of experimental and computational studies of novel apatite-type ionic conductors, which are attracting considerable worldwide attention. Contrary to the traditional fluorite and perovskite-type oxide ion conductors, which conduct via a vacancy mechanism, the current evidence indicates that these apatite systems conduct via oxide interstitials, as first reported in our initial modelling study of the Si-based systems. This interdisciplinary project will extend our internationally leading research through new adventurous studies of novel Ge-containing apatite materials, which offer higher ionic conductivities, but have been less widely investigated. Evaluation of their true potential therefore requires immediate study. This powerful combination of materials synthesis and characterisation (at Surrey), NMR (Warwick) and computer modelling (Bath) will provide deeper insight into these exciting materials for potential technological applications (such as solid oxide fuel cells). Our considerable experience and past success in ion transport studies places us in a strong position to address key issues. In many instances, our project will be the first investigation of this type.

拟议的研究将基于以前的成功，通过对新型磷灰石型离子导体进行实验和计算研究的组合计划，这些计划引起了全世界的大量关注。与传统的氟酸盐和钙钛矿型氧化物离子导体相反，这些导体通过空缺机制进行进行，目前的证据表明，这些磷灰石系统通过氧化物间隙进行，如我们在基于SI的系统的最初建模研究中首次报道。这个跨学科的项目将通过对含GE的新型磷灰石材料进行的新的冒险研究扩展我们的国际领先研究，这些研究提供了更高的离子电导率，但对研究的研究较少。因此，评估其真正的潜力需要立即研究。材料合成和表征的强大组合（在萨里），NMR（Warwick）和计算机建模（BATH）将为潜在的技术应用（例如固体氧化物燃料电池）提供更深入的了解。我们在离子运输研究中的丰富经验和过去的成功使我们处于解决关键问题的强烈地位。在许多情况下，我们的项目将是对这种类型的首次调查。