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/F013248/1
• 负责人: Saiful Islam
• 金额: $ 21.01万
• 依托单位: University of Bath
• 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%2FF013248%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.

拟议的研究将建立在先前成功的基础上，通过新型磷灰石型离子导体的实验和计算研究相结合的计划，吸引了全世界的广泛关注。与通过空位机制传导的传统萤石和钙钛矿型氧化物离子导体相反，目前的证据表明这些磷灰石系统通过氧化物间隙传导，正如我们在硅基系统的初步建模研究中首次报道的那样。这个跨学科项目将通过对新型含锗磷灰石材料的新的冒险研究来扩展我们的国际领先研究，这种材料具有更高的离子电导率，但尚未得到广泛的研究。因此，需要立即研究评估其真正潜力。材料合成和表征（萨里）、核磁共振（沃里克）和计算机建模（巴斯）的强大结合将为这些令人兴奋的材料的潜在技术应用（例如固体氧化物燃料电池）提供更深入的见解。我们在离子输运研究方面的丰富经验和过去的成功使我们在解决关键问题上处于有利地位。在许多情况下，我们的项目将是此类类型的首次调查。

项目成果

Oxygen Defects and Novel Transport Mechanisms in Apatite Ionic Conductors: Combined 17 O NMR and Modeling Studies

磷灰石离子导体中的氧缺陷和新型输运机制：17 O NMR 和建模研究相结合

• DOI: http://dx.10.1002/anie.201102064
• 发表时间: 2011
• 期刊: Angewandte Chemie International Edition
• 作者: Panchmatia P

Strategies for the Optimisation of the Oxide Ion Conductivities of Apatite-Type Germanates

磷灰石型锗酸盐氧化物离子电导率的优化策略

• DOI: http://dx.10.1002/fuce.201000020
• 发表时间: 2011
• 期刊: Fuel Cells
• 影响因子: 2.8
• 作者: Orera A

Solid-State Materials for Clean Energy: Insights from Atomic-Scale Modeling

用于清洁能源的固态材料：原子尺度建模的见解

• DOI: http://dx.10.1557/mrs2009.216
• 发表时间: 2011
• 期刊: MRS Bulletin
• 影响因子: 5
• 作者: Saiful Islam M

Atomic-scale mechanistic features of oxide ion conduction in apatite-type germanates.

磷灰石型锗酸盐中氧化物离子传导的原子尺度机制特征。

• DOI: 10.1039/b716814d
• 发表时间: 2008-01-29
• 期刊: Chemical communications
• 影响因子: 4.9
• 作者: E. Kendrick;M. Islam;P. Slater
• 通讯作者: P. Slater

Preparation of high-oxygen-content apatite silicates through Ti-doping: effect of Ti-doping on the oxide ion conductivity

Ti掺杂制备高氧磷灰石硅酸盐：Ti掺杂对氧离子电导率的影响

• DOI: http://dx.10.1039/b903794b
• 发表时间: 2009
• 期刊: Journal of Materials Chemistry
• 作者: Al