Co-generation of electricity and syngas on proton-conducting solid oxide fuel cell with a perovskite layer as a precursor of a highly efficient reforming catalyst
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Â© 2017 Elsevier B.V. In this study, a proton conducting solid oxide fuel cell (layered H + -SOFC) is prepared by introducing a La 2 NiO 4 perovskite oxide with a Ruddlesden-Popper structure as a catalyst layer onto a conventional NiO + BaZr 0.4 Ce 0.4 Y 0.2 O 3-Î´ (NiO + BZCY4) anode for in situ CO 2 dry reforming of methane. The roles of the La 2 NiO 4 catalyst layer on the reforming activity, coking tolerance, electrocatalytic activity and operational stability of the anodes are systematically studied. The La 2 NiO 4 catalyst layer exhibits greater catalytic performance than the NiO + BZCY4 anode during the CO 2 dry reforming of methane. An outstanding coking resistance capability is also demonstrated. The layered H + -SOFC consumes H 2 produced in situ at the anode and delivers a much higher power output than the conventional cell with the NiO + BZCY4 anode. The improved coking resistance of the layered H + -SOFC results in a steady output voltage of âˆ¼0.6 V under a c onstant current density of 200 mA cm âˆ’2 . In summary, the H + -SOFC with La 2 NiO 4 perovskite oxide is a potential energy conversion device for CO 2 conversion and utilization with co-generation of electricity and syngas.
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Co-generation of electricity and syngas on proton-conducting solid oxide fuel cell with a perovskite layer as a precursor of a highly efficient reforming catalystWan, T.; Zhu, A.; Guo, Y.; Wang, C.; Huang, S.; Chen, H.; Yang, G.; Wang, W.; Shao, Zongping (2017)© 2017 Elsevier B.V.In this study, a proton conducting solid oxide fuel cell (layered H+-SOFC) is prepared by introducing a La2NiO4perovskite oxide with a Ruddlesden-Popper structure as a catalyst layer onto a conventional ...
In situ fabrication of (Sr,La)FeO<inf>4</inf> with CoFe alloy nanoparticles as an independent catalyst layer for direct methane-based solid oxide fuel cells with a nickel cermet anodeChang, H.; Chen, H.; Shao, Zongping; Shi, J.; Bai, J.; Li, S. (2016)© 2016 The Royal Society of Chemistry.An independent catalyst layer is applied to develop a highly effective way to reduce coking when operating in methane based fuels, in which the catalyst layer is separated from a Ni ...
Performance and durability of a layered proton conducting solid oxide fuel cell fueled by the dry reforming of methaneGuo, Y.; Wan, T.; Zhu, A.; Shi, T.; Zhang, G.; Wang, C.; Yu, H.; Shao, Zongping (2017)© 2017 The Royal Society of Chemistry. Catalyst layers derived from La 2 NiO 4 , LaNiO 3 and Ni/La 2 O 3 precursors were applied to a conventional Ni-based anode in a proton conducting solid oxide fuel cell (H + -SOFC) ...