Efficient Pr2NiO4@Pr6O11 (PPNO) composite cathode synthesized via reactive magnetron sputtering (RMS) for MS-SOFC applications

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-02-01 DOI:10.1016/j.surfcoat.2025.131735

Xiaolei YE , Jiyun GAO , Shenghui GUO , Ming HOU , Li Yang , Lei GAO , Kaihua CHEN , Yunchuan LI , Pascal BRIOIS

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Abstract

The development of high-efficiency cathode materials is critical for advancing the large-scale commercialization of metal-supported solid oxide fuel cells (MS-SOFCs). In this study, Pr-Ni-O oxides were deposited using RMS and subsequently annealed at 1000 °C for 30 min to induce the in-situ formation of a Pr₂NiO₄@Pr₆O₁₁ (PPNO) composite cathode. The incorporation of Pr₆O₁₁ mitigates the decomposition of Pr₂NiO₄ (PNO), thereby enhancing its long-term stability. Compared to the parent material PNO, the PPNO composite demonstrated superior electrocatalytic performance. The polarization resistance (Rₚ) of the PPNO cathode was significantly reduced to 0.07 Ω·cm², much lower than the 0.84 Ω·cm² observed for PNO at 750 °C. Furthermore, a single cell with the configuration ITM/GDC10/NiO-YSZ/8YSZ/GDC10/PPNO (MS/PPNO) exhibited a remarkable maximum power density (P_max) of 1010 mW·cm² at 750 °C, compared to 326 mW·cm² for the corresponding ITM/GDC10/NiO-YSZ/8YSZ/GDC10/(MS/PNO) configuration. These findings provide valuable insights into designing improved cathode layers for MS-SOFC applications.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.