Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5145944 | International Journal of Hydrogen Energy | 2017 | 7 Pages |
Abstract
Symmetrical Solid Oxide Fuel Cells (SSFCs) are highly competitive options for a sustainable energy future, however, its application is hindered by the development of more surfer tolerance and highly efficient electrodes. Sr2FeCo0.5Mo0.5O6âδ (SFCM) was investigated as potential electrode materials for SSFCs using H2S as a fuel directly. SFCM powders, before and after exposure to 0.05% H2S/N2, were carried out to analyze the structure and morphology by X-ray diffraction (XRD), transmission electron microscope (TEM) and scanning electron microscope (SEM). A maximum power density of 45.69 mW cmâ2 was obtained in the configuration of SSFC (SFCM/LSGM/SFCM) in 0.05% H2S/N2 at 800 °C. SFCM had high catalytic activity in converting H2S into SO2 without obviously deactivation. After cell test, X-ray photoelectron spectroscopy (XPS) was used to reveal the distribution of valence state of sulfur. There founding demonstrated that the SSCM has a certain surfer tolerance ability, and that understanding how the electrodes works and impact the cell performance is critical to the design of highly stable double perovskite electrodes.
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Authors
Yang Song, Qin Zhong, Dongyu Wang, Yalin Xu, Wenyi Tan,