Academic Journal
Layered oxygen-deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells
| العنوان: | Layered oxygen-deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells |
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| المؤلفون: | Sengodan, Sivaprakesh, Choi, Siyuk, Jun, Areum, Shin, Tae Ho, Ju, Young-Wan, Jeong, Hu Young, Shin, Jeeyoung, Irvine, John Thomas Sirr, Kim, Guntae |
| المصدر: | Sengodan , S , Choi , S , Jun , A , Shin , T H , Ju , Y-W , Jeong , H Y , Shin , J , Irvine , J T S & Kim , G 2015 , ' Layered oxygen-deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells ' , Nature Materials , vol. 14 , no. 2 , pp. 205-206 . https://doi.org/10.1038/nmat4166 |
| سنة النشر: | 2015 |
| الوصف: | Different layered perovskite-related oxides are known to exhibit important electronic, magnetic and electrochemical properties. Owing to their excellent mixed-ionic and electronic conductivity and fast oxygen kinetics, cation layered double perovskite oxides such as PrBaCo 2 O 5 in particular have exhibited excellent properties as solid oxide fuel cell oxygen electrodes1. Here, we show for the first time that related layered materials can be used as high-performance fuel electrodes. Good redox stability with tolerance to coking and sulphur contamination from hydrocarbon fuels is demonstrated for the layered perovskite anode PrBaMn 2 O 5+δ (PBMO). The PBMO anode is fabricated by in situ annealing of Pr 0.5 Ba 0.5 MnO 3−δ in fuel conditions and actual fuel cell operation is demonstrated. At 800 °C, layered PBMO shows high electrical conductivity of 8.16 S cm −1 in 5% H 2 and demonstrates peak power densities of 1.7 and 1.3 W cm −2 at 850 °C using humidified hydrogen and propane fuels, respectively. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| DOI: | 10.1038/nmat4166 |
| الاتاحة: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/layered-oxygendeficient-double-perovskite-as-an-efficient-and-stable-anode-for-direct-hydrocarbon-solid-oxide-fuel-cells(af2bed16-e089-4fa0-af83-782b451dafb6).html https://doi.org/10.1038/nmat4166 https://research-repository.st-andrews.ac.uk/bitstream/10023/6853/1/43446_2_merged_1412646369_Shin_Kim_Nature_materials.pdf https://www.nature.com/articles/nmat4166#Sec3 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.5DB08634 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/nmat4166 |
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