Developing efficient stable oxygen electrode materials in reversible SOFC/SOECs by grain boundary engineering

通过晶界工程开发可逆 SOFC/SOEC 中高效稳定的氧电极材料

• 批准号: 17J02103
• 负责人: CHEN TING
• 金额: $ 1.09万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2017
• 资助国家: 日本
• 起止时间: 2017-04-26 至 2019-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17J02103/
• 关键词: oxygen surface exchange; thin films; oxygen electrodes; optical absorption; in situ crystallization; crystallinity; degradation; grain boundary

The impact of microstructure on oxygen surface exchange kinetics for different thin film oxygen electrodes (Perovskite, Fluorite and Ruddlesden-Popper structures) in R-SOCs have been investigated via an in situ optical transmission relaxation approach. The crystallization could enhance k of perovskite and RP-perovskite materials, but not for fluorite structure. Such results guide ways to optimize oxygen electrode processing for high efficient performance of oxygen electrodes, whic has been published in ACS Appl. Mater. Interfaces, 11, 9, 9102-9116 (2019). Another work of “Modifying grain boundary ionic/electronic transport in nano-Sr- and Mg- doped LaGaO3-δ by sintering variations” has also seen submitted to the Journal of The Electrochemical Society.

微观结构对不同薄膜氧电极（钙钛矿，荧光岩和ruddlesden-popper结构）对氧表面交换动力学的影响已通过原位光学传输弛豫方法研究了R-SOC。结晶可以增强钙钛矿和RP-玻璃盐材料的k，但不能增强荧光岩结构。这样的结果指导了优化氧电极加工以高效性能的氧电极性能的方法，WHIC已在ACS Appl中发表。母校。接口，11，9，9102-9116（2019）。 “通过烧结变化修改纳米-SR-和mg-掺杂的lagao3-δ的晶界离子/电子传输的另一项工作也已提交给电化学社会杂志。

项目成果

Understanding the role of microstructure on oxygen surface exchange kinetics via in situ optical absorption relaxation: Sr(Ti,Fe)O3 as a case study

通过原位光吸收弛豫了解微观结构对氧表面交换动力学的作用：以 Sr(Ti,Fe)O3 为例

• 发表时间: 2017
• 作者: T. Chen;G.F. Harrington;K. Sasaki;and N.H. Perry
• 通讯作者: and N.H. Perry

Relating Microstructure to Surface Exchange Kinetics Using In Situ Optical Absorption Relaxation

• DOI: 10.1149/07543.0023ecst
• 发表时间: 2017-01-01
• 期刊: ELECTROSYNTHESIS OF FUELS 4
• 作者: Chen, T.;Harrington, G. F.;Perry, N. H.
• 通讯作者: Perry, N. H.

The impact of in situ crystallization on oxygen surface exchange kinetics of mixed conducting thin film oxygen electrodes

原位结晶对混合导电薄膜氧电极氧表面交换动力学的影响

• 发表时间: 2018
• 作者: Ting Chen;George F. Harrington;Kazunari Sasaki;and Nicola H. Perry
• 通讯作者: and Nicola H. Perry

Towards efficient solid oxide cell electrodes by understanding oxygen surface exchange kinetics

通过了解氧表面交换动力学实现高效的固体氧化物电池电极

• 发表时间: 2018
• 作者: T. Chen;G.F. Harrington;K. Sasaki;and N.H. Perry
• 通讯作者: and N.H. Perry

Impact of microstructure and crystallinity on surface exchange kinetics of strontium titanium iron oxide perovskite by in situ optical transmission relaxation approach

• DOI: 10.1039/c7ta04940d
• 发表时间: 2017-11-28
• 期刊: JOURNAL OF MATERIALS CHEMISTRY A
• 影响因子: 11.9
• 作者: Chen, Ting;Harrington, George F.;Perry, Nicola H.
• 通讯作者: Perry, Nicola H.