Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6609006 | Electrochimica Acta | 2016 | 28 Pages |
Abstract
In order to improve the catalytic activity of commercial Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) for low-temperature solid oxide fuel cells (LTSOFC) (300-600 °C), CoOx has been used to modify the commercial BSCF through a solution coating approach. Phase and morphology of samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and energy-dispersive spectrometry (EDS), respectively. BSCF with 10 wt% CoOx exhibited an improved conductivity of 44 S/cm, and achieved a peak power density of 463 mW/cm2 at 550 °C for LTSOFC, which is a 100% enhancement than that with the BSCF cathode. The cathode oxygen reduction reaction (ORR) promoted by CoOx and enhanced device performance mechanism have been proposed. This work provides a new way for the exploitation of high effective cathode materials for LTSOFCs.
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Chemical Engineering (General)
Authors
Yunjuan He, Liangdong Fan, Muhammad Afzal, Manish Singh, Wei Zhang, Yufeng Zhao, Junjiao Li, Bin Zhu,