Mg-doped La0·3Sr0·7Mn0·8Mg0·2O3−δ cathode as a catalyst for NOx decomposition via H–SOFCs

Tingting Li; Jinshuo Qiao; Minjie He; Zhenhua Wang; Jinsheng Feng; Wang Sun; Kening Sun; Xinhua Lai; Xiaoping Bai; Guohua Wang

doi:10.1016/j.ceramint.2019.10.079

Mg-doped La_0·3Sr_0·7Mn_0·8Mg_0·2O_3−δ cathode as a catalyst for NOx decomposition via H–SOFCs

Tingting Li, Jinshuo Qiao^*, Minjie He, Zhenhua Wang, Jinsheng Feng, Wang Sun, Kening Sun, Xinhua Lai, Xiaoping Bai, Guohua Wang

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Proton conducting solid oxide fuel cells (H–SOFCs) with BaZr_0·1Ce_0·7Y_0·2O_3-δ as electrolyte were fabricated to couple the removal of nitrogen oxides in power generation technology. Specially, a deliberately designed cathode with the composition of La_0·3Sr_0·7Mn_0·8Mg_0·2O_3−δ was prepared to realize this dual function. The results indicated that the incorporation of Mg ions in La_0·3Sr_0·7MnO_3−δ can improve its ability to adsorb NO and the cathode activity. At 800 °C, when using the NO as oxidant, single cell with La_0·3Sr_0·7Mn_0·8Mg_0·2O_3−δ cathode was able to obtain peak power density of 48 mW cm⁻² and achieve the conversion of NO to N₂ more than 48%. These findings suggested that power generation coupling deNO via H–SOFC is possible and La_0·3Sr_0·7Mn_0·8Mg_0·2O_3−δ was a promising cathode for this application.

Original language	English
Pages (from-to)	3606-3613
Number of pages	8
Journal	Ceramics International
Volume	46
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2019.10.079
Publication status	Published - 15 Feb 2020

Keywords

Flue gas
NO decomposition
Proton conductor
Solid oxide fuel cell

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10.1016/j.ceramint.2019.10.079

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@article{27c259b6ab894160968e9c4e9431d4bf,

title = "Mg-doped La0·3Sr0·7Mn0·8Mg0·2O3−δ cathode as a catalyst for NOx decomposition via H–SOFCs",

abstract = "Proton conducting solid oxide fuel cells (H–SOFCs) with BaZr0·1Ce0·7Y0·2O3-δ as electrolyte were fabricated to couple the removal of nitrogen oxides in power generation technology. Specially, a deliberately designed cathode with the composition of La0·3Sr0·7Mn0·8Mg0·2O3−δ was prepared to realize this dual function. The results indicated that the incorporation of Mg ions in La0·3Sr0·7MnO3−δ can improve its ability to adsorb NO and the cathode activity. At 800 °C, when using the NO as oxidant, single cell with La0·3Sr0·7Mn0·8Mg0·2O3−δ cathode was able to obtain peak power density of 48 mW cm−2 and achieve the conversion of NO to N2 more than 48%. These findings suggested that power generation coupling deNO via H–SOFC is possible and La0·3Sr0·7Mn0·8Mg0·2O3−δ was a promising cathode for this application.",

keywords = "Flue gas, NO decomposition, Proton conductor, Solid oxide fuel cell",

author = "Tingting Li and Jinshuo Qiao and Minjie He and Zhenhua Wang and Jinsheng Feng and Wang Sun and Kening Sun and Xinhua Lai and Xiaoping Bai and Guohua Wang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = feb,

day = "15",

doi = "10.1016/j.ceramint.2019.10.079",

language = "English",

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TY - JOUR

T1 - Mg-doped La0·3Sr0·7Mn0·8Mg0·2O3−δ cathode as a catalyst for NOx decomposition via H–SOFCs

AU - Li, Tingting

AU - Qiao, Jinshuo

AU - He, Minjie

AU - Wang, Zhenhua

AU - Feng, Jinsheng

AU - Sun, Wang

AU - Sun, Kening

AU - Lai, Xinhua

AU - Bai, Xiaoping

AU - Wang, Guohua

PY - 2020/2/15

Y1 - 2020/2/15

N2 - Proton conducting solid oxide fuel cells (H–SOFCs) with BaZr0·1Ce0·7Y0·2O3-δ as electrolyte were fabricated to couple the removal of nitrogen oxides in power generation technology. Specially, a deliberately designed cathode with the composition of La0·3Sr0·7Mn0·8Mg0·2O3−δ was prepared to realize this dual function. The results indicated that the incorporation of Mg ions in La0·3Sr0·7MnO3−δ can improve its ability to adsorb NO and the cathode activity. At 800 °C, when using the NO as oxidant, single cell with La0·3Sr0·7Mn0·8Mg0·2O3−δ cathode was able to obtain peak power density of 48 mW cm−2 and achieve the conversion of NO to N2 more than 48%. These findings suggested that power generation coupling deNO via H–SOFC is possible and La0·3Sr0·7Mn0·8Mg0·2O3−δ was a promising cathode for this application.

AB - Proton conducting solid oxide fuel cells (H–SOFCs) with BaZr0·1Ce0·7Y0·2O3-δ as electrolyte were fabricated to couple the removal of nitrogen oxides in power generation technology. Specially, a deliberately designed cathode with the composition of La0·3Sr0·7Mn0·8Mg0·2O3−δ was prepared to realize this dual function. The results indicated that the incorporation of Mg ions in La0·3Sr0·7MnO3−δ can improve its ability to adsorb NO and the cathode activity. At 800 °C, when using the NO as oxidant, single cell with La0·3Sr0·7Mn0·8Mg0·2O3−δ cathode was able to obtain peak power density of 48 mW cm−2 and achieve the conversion of NO to N2 more than 48%. These findings suggested that power generation coupling deNO via H–SOFC is possible and La0·3Sr0·7Mn0·8Mg0·2O3−δ was a promising cathode for this application.

KW - Flue gas

KW - NO decomposition

KW - Proton conductor

KW - Solid oxide fuel cell

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DO - 10.1016/j.ceramint.2019.10.079

M3 - Article

AN - SCOPUS:85073503473

SN - 0272-8842

VL - 46

SP - 3606

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JO - Ceramics International

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IS - 3

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Mg-doped La_0·3Sr_0·7Mn_0·8Mg_0·2O_3−δ cathode as a catalyst for NOx decomposition via H–SOFCs

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