دورية أكاديمية
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Electrochemically Assisted Construction of a La 2 NiO 4+δ @Pt Core-Shell Structure for Enhancing the Performance and Durability of La 2 NiO 4+δ Cathodes.

التفاصيل البيبلوغرافية
العنوان: Electrochemically Assisted Construction of a La 2 NiO 4+δ @Pt Core-Shell Structure for Enhancing the Performance and Durability of La 2 NiO 4+δ Cathodes.
المؤلفون: Zou Y; College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.; Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China., Yue Z; College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China., He S; Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China., Li Z; Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China., Chen Z; College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China., Ai N; Fujian College Association Instrumental Analysis Center, Fuzhou University, Fuzhou, Fujian 350108, China., Sun X; John De Laeter Centre, Curtin University, Perth, Western Australia 6102, Australia., Rickard WDA; John De Laeter Centre, Curtin University, Perth, Western Australia 6102, Australia., Guo M; Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China., Jiang SP; Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China.; WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia 6102, Australia., Chen K; College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
المصدر: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2023 Aug 30; Vol. 15 (34), pp. 40549-40557. Date of Electronic Publication: 2023 Aug 17.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Chemical Society Country of Publication: United States NLM ID: 101504991 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1944-8252 (Electronic) Linking ISSN: 19448244 NLM ISO Abbreviation: ACS Appl Mater Interfaces Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: Washington, D.C. : American Chemical Society
مستخلص: Ruddlesden-Popper oxide La 2 NiO 4+δ (LNO) has a high ionic conductivity and good thermal match with the electrolyte of solid oxide fuel cells (SOFCs); however, LNO suffers from performance decay owing to the La surface segregation under the operation conditions of SOFCs. Herein, we report an in situ electrochemical decoration strategy to improve the electrocatalytic activity and durability of LNO cathodes. We show that the electrochemical polarization leads to in situ construction of the LNO@Pt core-shell structure, significantly suppressing the detrimental effect of La surface segregation on the LNO cathode. The initial peak power density of a single cell with the LNO cathode is 0.71 W cm -2 at 750 °C, increasing to 1.39 W cm -2 by the in situ construction of the LNO@Pt core-shell structure after polarization at 0.5 A cm -2 for 20 h. The LNO@Pt core-shell structure is also highly durable without noticeable performance degradation over the duration of the test for 180 h. The findings shed light on the design and fabrication of highly active and durable LNO-based cathodes for SOFCs.
فهرسة مساهمة: Keywords: LNO; La surface segregation; core−shell structure; electrochemical polarization; solid oxide fuel cells
تواريخ الأحداث: Date Created: 20230817 Latest Revision: 20230831
رمز التحديث: 20240628
DOI: 10.1021/acsami.3c07868
PMID: 37590043
قاعدة البيانات: MEDLINE
الوصف
تدمد:1944-8252
DOI:10.1021/acsami.3c07868