Triggering interfacial activity of the traditional La0.5Sr0.5MnO3 cathode with Co-doping for proton-conducting solid oxide fuel cells. Issue 4 (4th January 2022)

• Record Type: Journal Article
• Authors: Yin, Yanru; Yu, Shoufu; Dai, Hailu; Bi, Lei
• Is Part Of: Journal of materials chemistry. Volume 10:Issue 4(2022)
• Page Start: 1726
• Page End: 1734
• Publication Date: 2022-01-04
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d1ta09450e
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Doping the Co element into the traditional La0.5 Sr0.5 MnO3− δ cathode material triggers the activity of the cathode/electrolyte interface in the composite cathode, leading to impressively high cell performance for proton-conducting solid oxide fuel cells. Abstract : Doping the La0.5 Sr0.5 MnO3− δ (LSM) cathode with the Co element allows the new material La0.5 Sr0.5 Mn0.9 Co0.1 O3− δ (LSMCo) to show improved performance compared with the Co-free LSM for proton-conducting solid oxide fuel cells (H-SOFCs), demonstrated by both experiments and first-principles calculations. More importantly, doping Co into LSM triggers the activity of the cathode/electrolyte interface in the composite cathode, leading to an impressively high fuel cell performance of the cell using the LSMCo composite cathode and also revealing the importance of the interfacial design for the cathode of H-SOFCs.