Efficiency of 3D-Ordered Macroporous La0.6Sr0.4Co0.2Fe0.8O3 as an Electrocatalyst for Aprotic Li-O2 Batteries

Junfang Cheng; Yuexing Jiang; Lu Zou; Ming Zhang; Guozhu Zhang; Ziling Wang; Yizhen Huang; Bo Chi; Jian Pu; Li Jian

doi:10.1002/open.201800247

Efficiency of 3D-Ordered Macroporous La_0.6Sr_0.4Co_0.2Fe_0.8O₃ as an Electrocatalyst for Aprotic Li-O₂ Batteries

Junfang Cheng, Yuexing Jiang, Lu Zou, Ming Zhang, Guozhu Zhang, Ziling Wang, Yizhen Huang, Bo Chi^*, Jian Pu, Li Jian

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

Li-O₂ batteries (LOBs) with an extremely high theoretical energy density have been reported to be the most promising candidates for future electric storage systems. Porous catalysts can be beneficial for LOBs. Herein, 3D-ordered macroporous La_0.6Sr_0.4Co_0.2Fe_0.8O₃ perovskite oxides (3D-LSCF) are applied as cathode catalysts in LOBs. With a high Brunauer-Emmett-Teller surface area (21.8 m² g⁻¹) and unique honeycomb-like macroporous structure, the 3D-LSCF catalysts possess a much higher efficiency than La_0.6Sr_0.4Co_0.2Fe_0.8O₃ (LSCF) nanoparticles. The unique 3D-ordered macropores play a significant role in the product deposition as well as oxygen and electrolyte transmission, which are crucial for the discharge-charge processes of LOBs.

Original language	English
Pages (from-to)	206-209
Number of pages	4
Journal	ChemistryOpen
Volume	8
Issue number	2
DOIs	https://doi.org/10.1002/open.201800247
Publication status	Published - 2019 Feb
Externally published	Yes

Keywords

Li-O batteries
catalytic efficiency
nanostructures
overpotential
perovskite phases

ASJC Scopus subject areas

Chemistry(all)

Access to Document

10.1002/open.201800247

Cite this

@article{1f78e3ff07d6455e83d64f804ea17240,

title = "Efficiency of 3D-Ordered Macroporous La0.6Sr0.4Co0.2Fe0.8O3 as an Electrocatalyst for Aprotic Li-O2 Batteries",

abstract = "Li-O2 batteries (LOBs) with an extremely high theoretical energy density have been reported to be the most promising candidates for future electric storage systems. Porous catalysts can be beneficial for LOBs. Herein, 3D-ordered macroporous La0.6Sr0.4Co0.2Fe0.8O3 perovskite oxides (3D-LSCF) are applied as cathode catalysts in LOBs. With a high Brunauer-Emmett-Teller surface area (21.8 m2 g−1) and unique honeycomb-like macroporous structure, the 3D-LSCF catalysts possess a much higher efficiency than La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) nanoparticles. The unique 3D-ordered macropores play a significant role in the product deposition as well as oxygen and electrolyte transmission, which are crucial for the discharge-charge processes of LOBs.",

keywords = "Li-O batteries, catalytic efficiency, nanostructures, overpotential, perovskite phases",

author = "Junfang Cheng and Yuexing Jiang and Lu Zou and Ming Zhang and Guozhu Zhang and Ziling Wang and Yizhen Huang and Bo Chi and Jian Pu and Li Jian",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.",

year = "2019",

month = feb,

doi = "10.1002/open.201800247",

language = "English",

volume = "8",

pages = "206--209",

journal = "ChemistryOpen",

issn = "2191-1363",

publisher = "John Wiley and Sons Inc.",

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T1 - Efficiency of 3D-Ordered Macroporous La0.6Sr0.4Co0.2Fe0.8O3 as an Electrocatalyst for Aprotic Li-O2 Batteries

AU - Cheng, Junfang

AU - Jiang, Yuexing

AU - Zou, Lu

AU - Zhang, Ming

AU - Zhang, Guozhu

AU - Wang, Ziling

AU - Huang, Yizhen

AU - Chi, Bo

AU - Pu, Jian

AU - Jian, Li

PY - 2019/2

Y1 - 2019/2

N2 - Li-O2 batteries (LOBs) with an extremely high theoretical energy density have been reported to be the most promising candidates for future electric storage systems. Porous catalysts can be beneficial for LOBs. Herein, 3D-ordered macroporous La0.6Sr0.4Co0.2Fe0.8O3 perovskite oxides (3D-LSCF) are applied as cathode catalysts in LOBs. With a high Brunauer-Emmett-Teller surface area (21.8 m2 g−1) and unique honeycomb-like macroporous structure, the 3D-LSCF catalysts possess a much higher efficiency than La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) nanoparticles. The unique 3D-ordered macropores play a significant role in the product deposition as well as oxygen and electrolyte transmission, which are crucial for the discharge-charge processes of LOBs.

AB - Li-O2 batteries (LOBs) with an extremely high theoretical energy density have been reported to be the most promising candidates for future electric storage systems. Porous catalysts can be beneficial for LOBs. Herein, 3D-ordered macroporous La0.6Sr0.4Co0.2Fe0.8O3 perovskite oxides (3D-LSCF) are applied as cathode catalysts in LOBs. With a high Brunauer-Emmett-Teller surface area (21.8 m2 g−1) and unique honeycomb-like macroporous structure, the 3D-LSCF catalysts possess a much higher efficiency than La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) nanoparticles. The unique 3D-ordered macropores play a significant role in the product deposition as well as oxygen and electrolyte transmission, which are crucial for the discharge-charge processes of LOBs.

KW - Li-O batteries

KW - catalytic efficiency

KW - nanostructures

KW - overpotential

KW - perovskite phases

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