DOI: 10.1016/j.jcou.2016.11.014
Scopus记录号: 2-s2.0-85006508526
论文题名: Efficient conversion of CO2 in solid oxide electrolytic cells with Pd doped perovskite cathode on ceria nanofilm interlayer
作者: Kulkarni A.P. ; Giddey S. ; Badwal S.P.S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 17 起始页码: 180
结束页码: 187
语种: 英语
英文关键词: CO2 conversion
; Electrolyser
; Electrolysis
; Energy storage
; Nano ceria
Scopus关键词: Carbon
; Cathodes
; Electric energy storage
; Electrochemical electrodes
; Electrodes
; Electrolysis
; Electrolytes
; Energy storage
; Fuel cells
; Fuel storage
; Load testing
; Metallic compounds
; Nanocrystals
; Nickel
; Nuclear reactors
; Photovoltaic cells
; Solar concentrators
; Solar power generation
; Solid electrolytes
; Solid oxide fuel cells (SOFC)
; Waste heat
; Yttria stabilized zirconia
; Concentrator photovoltaic systems
; Electrochemical performance
; Electrolysers
; Energy storage technologies
; High energy density fuels
; Nano-ceria
; Nanocrystalline thin films
; Renewable energy storages
; Carbon dioxide
英文摘要: The conversion of CO2 into high energy density fuels and chemicals using electricity generated from renewable sources in High Temperature Solid Oxide Electrolysers is one of the emerging energy storage technologies. By utilising waste heat from industrial processes or solar concentrators or nuclear reactors, HT-SOE devices can reduce the electrical energy input up to 30%. Thus such devices are attractive for utilising CO2 as a renewable energy storage media when coupled with Solar Concentrator Photovoltaic systems. Application of traditional solid oxide fuel cell electrodes such as Ni-YSZ restricts the operation of the electrolyser to using CO2 mixed with reducing gases such as hydrogen or CO to prevent re-oxidation of metallic Ni to NiO in the presence of CO2. Furthermore carbon deposition can occur at high current densities in dry CO2. New redox stable ceramic cathodes (CO2 electrode) are promising alternatives to Ni-YSZ electrodes. In this work, we report electrochemical performance of Palladium (Pd) doped La0.6Sr0.4Co0.2Fe0.8O3-ζ (LSCF-Pd) as potential cathode for these devices. Using LSCF-Pd as both anode and cathode, with nanocrystalline thin film doped ceria as an interlayer between the cathode and the electrolyte, current densities in excess of 360 mA cm-2 were obtained at 800 °C in electrolyte supported tubular cells with high CO2 and steam conversion to syngas. The electrochemical performance of the electrode was found to be stable during the 50 h testing of the cell on cyclic load. The cells and reactors used are modular and scalable. © 2011 Published by Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52803
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Kulkarni A.P.,Giddey S.,Badwal S.P.S.. Efficient conversion of CO2 in solid oxide electrolytic cells with Pd doped perovskite cathode on ceria nanofilm interlayer[J]. Journal of CO2 Utilization,2017-01-01,17