| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-11-18 |
| タイトル |
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タイトル |
Design of Active Hopping Sites via Trace Trivalent Cation in IT-SOFC Anode |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Tong Ke
Toshiyuki Mori
Andrii Rednyk
Yamamoto Shunya
Shigeharu Ito
Fei Ye
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
To improve the performance and durability of intermediate-temperature solid oxide fuel cells (IT-SOFCs), a small amount (less than 1200 ppm) of trivalent cations (Rh³⁺ or Fe³⁺), similar to Y³⁺ in Y₂O₃, was doped onto the surface of yttria-stabilized zirconia (YSZ) in the anode layer. This doping led to a ninefold increase in current density at 973 K compared to undoped cells. First-principles surface calculations revealed that the enhancement is due to delocalized electrons near the three-phase boundary and improved surface oxygen diffusion. These findings establish a guiding principle for material design that leverages YSZ’s unique physical properties for IT-SOFC applications. |
| 書誌情報 |
Energies
発行日 2025-08
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| 出版者 |
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出版者 |
MDPI |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.3390/en18164314 |
