DOI: 10.1016/j.jcou.2019.02.017
Scopus记录号: 2-s2.0-85062692196
论文题名: Novel quasi-symmetrical solid oxide electrolysis cells with in-situ exsolved cathode for CO 2 electrolysis
作者: Tian Y. ; Zhang L. ; Jia L. ; Wang X. ; Yang J. ; Chi B. ; Pu J. ; Li J.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2019
卷: 31 起始页码: 43
结束页码: 50
语种: 英语
英文关键词: Carbon dioxide electrolysis
; In-situ exsolve
; Quasi-symmetrical solid oxide electrolysis cell
; Reduced cathode
Scopus关键词: Binary alloys
; Carbon dioxide
; Cathodes
; Cells
; Cytology
; Electrolysis
; Electrolytic cells
; Nanoparticles
; Oxygen vacancies
; Regenerative fuel cells
; Alloy nanoparticle
; Enhancement mechanism
; Faraday efficiency
; Fe nanoparticles
; Long term stability
; Polarization resistances
; Structural advantage
; Synergistic effect
; Solid oxide fuel cells (SOFC)
英文摘要: Symmetrical solid oxide electrolysis cells have attracted increasingly attention because of their structural advantages as well as low cost. Herein, we demonstrate a novel quasi-symmetrical solid oxide electrolysis cell with reduced La 0.6 Sr 0.4 Fe 0.8 Ni 0.2 O 3- δ as cathode and La 0.6 Sr 0.4 Fe 0.8 Ni 0.2 O 3- δ as anode for pure CO 2 electrolysis. After reduction, alloy nanoparticles are in-situ exsolved and oxygen vacancies are formed in La 0.6 Sr 0.4 Fe 0.8 Ni 0.2 O 3- δ lattices. The cell with reduced La 0.6 Sr 0.4 Fe 0.8 Ni 0.2 O 3- δ cathode shows current density of 1.42 A/cm 2 at 2.0 V under 850 °C for CO 2 electrolysis, with lower polarization resistance (0.06 Ω·cm 2 ), higher Faraday efficiency (98%) and better long-term stability compared to the cell with La 0.6 Sr 0.4 Fe 0.8 Ni 0.2 O 3- δ cathode at 850 °C. The enhancement mechanism can be ascribed to the synergistic effect of the in-situ exsolved Ni-Fe nanoparticles and oxygen vacancies. The results illustrate that the quasi-symmetrical solid oxide electrolysis cells with reduced La 0.6 Sr 0.4 Fe 0.8 Ni 0.2 O 3- δ cathode demonstrate promising application for CO 2 electrolysis. © 2019 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117283
Appears in Collections: 气候变化与战略
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Recommended Citation:
Tian Y.,Zhang L.,Jia L.,et al. Novel quasi-symmetrical solid oxide electrolysis cells with in-situ exsolved cathode for CO 2 electrolysis[J]. Journal of CO2 Utilization,2019-01-01,31