Theoretical study for the sintering of Ni anode in solid oxide fuel cell

K. Nakao, T. Ogura, T. Ishimoto, M. Koyama

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 引用 (Scopus)

抜粋

Ni sintering is one of the main factors in SOFC degradation. In this study, we first investigated the surface orientation on Ni nanoparticles by using molecular dynamics (MD) method. It was identified that Ni nanoparticles mainly consist of four facets: (111), (100), (110), and (113). We also analyzed the stability of surface energy, which is the dominant driving force for the sintering phenomena, in various sizes of Ni nanoparticles. The MD simulation of two particles system was performed to investigate the sintering phenomena. We found that the diffusion coefficient is almost the same between 1373 and 1673 K, while contact surface orientation is different. It is indicated that dominant sintering mechanism of Ni nanoparticles is surface diffusion.

元の言語英語
ホスト出版物のタイトルSolid Oxide Fuel Cells 12, SOFC XII
ページ1661-1667
ページ数7
エディション2 PART 2
DOI
出版物ステータス出版済み - 12 1 2011
イベント12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, カナダ
継続期間: 5 1 20115 6 2011

出版物シリーズ

名前ECS Transactions
番号2 PART 2
35
ISSN(印刷物)1938-5862
ISSN(電子版)1938-6737

その他

その他12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
カナダ
Montreal, QC
期間5/1/115/6/11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • これを引用

    Nakao, K., Ogura, T., Ishimoto, T., & Koyama, M. (2011). Theoretical study for the sintering of Ni anode in solid oxide fuel cell. : Solid Oxide Fuel Cells 12, SOFC XII (2 PART 2 版, pp. 1661-1667). (ECS Transactions; 巻数 35, 番号 2 PART 2). https://doi.org/10.1149/1.3570153