2015年6月
Fabrication of High-performance Ni-GDC-nanocube Core-shell Anodes Prepared by a Chemical Reduction Method for Low-temperature Solid-oxide Fuel Cells
Trans JWRI (Join Weld Res Inst Osaka Univ)
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- 巻
- 44
- 号
- 1
- 開始ページ
- 15
- 終了ページ
- 18
- 記述言語
- 英語
- 掲載種別
- 出版者・発行元
- 大阪大学接合科学研究所
High-performance attractive SOFC anode material Ni-GDC-nanocube core-shell composites were successfully fabricated in a solution by chemical reduction method. The novel anode material was composed of a spherical metal Ni core and covering GDC nanocube shell. 200nm size of large Ni spheres provided great porous and Ni-Ni necking framework for current collection as macrostucture. On the surface of Ni spheres, 10nm size of GDC nanocube particles covered with highly reactive{001} crystal facets acquired enlarged triple-phase boundary (TPB) as microstructure. In situ fabrication of Ni-Ni necking framework was achieved by crystal growth of Ni spheres during generation tests even at 500℃ operating. The non-sintered Ni-GDC-nanocube core-shell anode showed a higher power density compared with conventional Ni-GDC-anodes sintered at 1300℃.The designated macro-and microstructure of Ni-GDC core-shell anodes were maintained after generation testd even at 700℃ operating.
- リンク情報
- ID情報
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- ISSN : 0387-4508
- J-Global ID : 201502208578200207
- CiNii Articles ID : 120005819578
- CiNii Books ID : AA00867058