Perovskite LSCM impregnated with vanadium pentoxide for high temperature carbon dioxide electrolysis

Xiaozhen Zhang; Lingting Ye; Jianping Hu; Jie Li; Weihui Jiang; Chung Jen Tseng; Kui Xie

doi:10.1016/j.electacta.2016.06.137

Perovskite LSCM impregnated with vanadium pentoxide for high temperature carbon dioxide electrolysis

Xiaozhen Zhang, Lingting Ye, Jianping Hu, Jie Li, Weihui Jiang, Chung Jen Tseng, Kui Xie

機械工程學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

32 引文斯高帕斯（Scopus）

摘要

Perovskite La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-δ (LSCM) has been used as a typical cathode for CO₂ electrolysis in oxide-ion conducting solid oxide electrolyzers; however, the limited electrocatalytic activity still restricts electrode kinetic process. In this work, catalytic-active V₂O₅ nanocatalyst is impregnated in LSCM cathode to enhance electrocatalytic performance. Electrochemical measurements show that the loading of 2 wt% V₂O₅ significantly improves electrode activity and accordingly reduces electrode polarization resistance from 2.6 Ω•cm² for LSCM to 1.2 Ω^•Cm² for V₂O₅-LSCM in pure hydrogen. The current densities and Faradic efficiencies with V₂O₅-LSCM electrode are remarkably enhanced by 30% and 40% in contrast to bare LSCM electrode in the voltage region of 1.2-2.0 V at 800 °C for direct carbon dioxide electrolysis, respectively.

原文	???core.languages.en_GB???
頁（從 - 到）	32-40
頁數	9
期刊	Electrochimica Acta
卷	212
DOIs	https://doi.org/10.1016/j.electacta.2016.06.137
出版狀態	已出版 - 10 9月 2016

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10.1016/j.electacta.2016.06.137

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@article{fb62a8b6f3914d34818f8f734232cbfb,

title = "Perovskite LSCM impregnated with vanadium pentoxide for high temperature carbon dioxide electrolysis",

abstract = "Perovskite La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCM) has been used as a typical cathode for CO2 electrolysis in oxide-ion conducting solid oxide electrolyzers; however, the limited electrocatalytic activity still restricts electrode kinetic process. In this work, catalytic-active V2O5 nanocatalyst is impregnated in LSCM cathode to enhance electrocatalytic performance. Electrochemical measurements show that the loading of 2 wt% V2O5 significantly improves electrode activity and accordingly reduces electrode polarization resistance from 2.6 Ω•cm2 for LSCM to 1.2 Ω•Cm2 for V2O5-LSCM in pure hydrogen. The current densities and Faradic efficiencies with V2O5-LSCM electrode are remarkably enhanced by 30% and 40% in contrast to bare LSCM electrode in the voltage region of 1.2-2.0 V at 800 °C for direct carbon dioxide electrolysis, respectively.",

keywords = "Carbon dioxide, Electrolysis, LSCM, Solid oxide electrolyzer, VO",

author = "Xiaozhen Zhang and Lingting Ye and Jianping Hu and Jie Li and Weihui Jiang and Tseng, {Chung Jen} and Kui Xie",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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doi = "10.1016/j.electacta.2016.06.137",

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T1 - Perovskite LSCM impregnated with vanadium pentoxide for high temperature carbon dioxide electrolysis

AU - Zhang, Xiaozhen

AU - Ye, Lingting

AU - Hu, Jianping

AU - Li, Jie

AU - Jiang, Weihui

AU - Tseng, Chung Jen

AU - Xie, Kui

PY - 2016/9/10

Y1 - 2016/9/10

N2 - Perovskite La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCM) has been used as a typical cathode for CO2 electrolysis in oxide-ion conducting solid oxide electrolyzers; however, the limited electrocatalytic activity still restricts electrode kinetic process. In this work, catalytic-active V2O5 nanocatalyst is impregnated in LSCM cathode to enhance electrocatalytic performance. Electrochemical measurements show that the loading of 2 wt% V2O5 significantly improves electrode activity and accordingly reduces electrode polarization resistance from 2.6 Ω•cm2 for LSCM to 1.2 Ω•Cm2 for V2O5-LSCM in pure hydrogen. The current densities and Faradic efficiencies with V2O5-LSCM electrode are remarkably enhanced by 30% and 40% in contrast to bare LSCM electrode in the voltage region of 1.2-2.0 V at 800 °C for direct carbon dioxide electrolysis, respectively.

AB - Perovskite La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCM) has been used as a typical cathode for CO2 electrolysis in oxide-ion conducting solid oxide electrolyzers; however, the limited electrocatalytic activity still restricts electrode kinetic process. In this work, catalytic-active V2O5 nanocatalyst is impregnated in LSCM cathode to enhance electrocatalytic performance. Electrochemical measurements show that the loading of 2 wt% V2O5 significantly improves electrode activity and accordingly reduces electrode polarization resistance from 2.6 Ω•cm2 for LSCM to 1.2 Ω•Cm2 for V2O5-LSCM in pure hydrogen. The current densities and Faradic efficiencies with V2O5-LSCM electrode are remarkably enhanced by 30% and 40% in contrast to bare LSCM electrode in the voltage region of 1.2-2.0 V at 800 °C for direct carbon dioxide electrolysis, respectively.

KW - Carbon dioxide

KW - Electrolysis

KW - LSCM

KW - Solid oxide electrolyzer

KW - VO

UR - http://www.scopus.com/inward/record.url?scp=84978060376&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2016.06.137

DO - 10.1016/j.electacta.2016.06.137

M3 - 期刊論文

AN - SCOPUS:84978060376

SN - 0013-4686

VL - 212

SP - 32

EP - 40

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Perovskite LSCM impregnated with vanadium pentoxide for high temperature carbon dioxide electrolysis

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