Controlled fabrication of anode microstructures in solid oxide fuel cells

固体氧化物燃料电池阳极微结构的受控制造

• 批准号: 24686019
• 负责人: NAGATO Keisuke
• 金额: $ 17.22万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24686019/
• 关键词: ナノ・マイクロ加工; 固体酸化物; 燃料電池; 燃料極; 微細構造; 配列

Conventional microstructures in anode of solid-oxide fuel cells has not been necessarily optimized in a view point of the transfer of matters or chemical reactions at their boundaries because the paths are located randomly. In this study, we aimed for alignment of YSZ, Ni and pore along the thickness direction, in which the oxygen ions, electrons and gases are effectively transferred respectively. Ni particles were aligned by magnetic field and the maximum power improved to 1.6 times as the conventional cell. The reconstruction of the microstructure with FIB-SEM and electrochemical reaction calculation indicated that the tortuosity was improved to about 3 from 7. Furthermore, Al film was deposited on a Zr substrate and alumina through nanoholes were formed by anodic oxidation, and then the zirconia pillars were successfully synthesized by reanodization using the nanoholes as a mold.

固体氧化物燃料电池的阳极中的常规微结构由于路径随机地定位，因此在其边界处的物质转移或化学反应的观点中没有必要进行优化。在本研究中，我们的目标是沿着沿着厚度方向排列YSZ，Ni和孔，其中氧离子，电子和气体分别有效地转移。磁场使Ni颗粒定向排列，最大功率提高到常规电池的1.6倍。利用纤维束扫描电镜（FIB SEM）和电化学反应计算对微结构进行了重构，结果表明，弯曲度由7提高到3左右。在Zr基体上沉积Al膜，通过阳极氧化形成贯通的氧化铝纳米孔，再以孔为模板进行二次阳极氧化，成功地合成了氧化锆柱。

项目成果

Fabrication of highly ordered Ta2O5 and Ta3N5 nanorod arrays by nanoimprinting and through-mask anodization

• DOI: 10.1088/0957-4484/25/1/014013
• 发表时间: 2014-01
• 期刊: Nanotechnology
• 影响因子: 3.5
• 作者: Yanbo Li;K. Nagato;J. Delaunay;J. Kubota;K. Domen

Roller Replication of Nano/Microstructures of Polymers, Glasses, Metals, and Ceramics

聚合物、玻璃、金属和陶瓷的纳米/微米结构的滚筒复制

• 发表时间: 2012
• 作者: Keisuke Nagato;Daisuke Suehiro;Toshimi Sato;Shota Ikeshima;Yasuaki Watanabe;Masayuki Nakao
• 通讯作者: Masayuki Nakao

Morphology control of nickel oxide nanowires

• DOI: 10.1016/j.mee.2012.07.049
• 发表时间: 2012-10
• 期刊: Microelectronic Engineering
• 影响因子: 2.3
• 作者: Kaname Sekiya;K. Nagato;T. Hamaguchi;M. Nakao

Enhancement of power efficiency of solid oxide fuel cells by aligning microstructure path of ion/electron/gas in anode

通过调整阳极中离子/电子/气体的微观结构路径来提高固体氧化物燃料电池的功率效率

• 发表时间: 2012
• 作者: Shunta Shinagawa;Keisuke Nagato;Naoki Shikazono;Tetsuya Hamaguchi;Masayuki Nakao
• 通讯作者: Masayuki Nakao

Micromixer of multi-material slurry with rotation-split-combination cycle for ceramic components

用于陶瓷部件的具有旋转-分割-组合循环的多材料浆料微混合器

• 发表时间: 2012
• 作者: Takuma Yamauchi;Keisuke Nagato;Shota Ikeshima;Tetsuya Hamaguchi;Masayuki Nakao
• 通讯作者: Masayuki Nakao