Bifunctional electrochemical properties of La0.8Sr0.2Co0.8M0.2O3-: δ (M = Ni, Fe, Mn, and Cu): Efficient elemental doping based on a structural and pH-dependent study

J. Cheng; P. Ganesan; Z. Wang; M. Zhang; G. Zhang; N. Maeda; J. Matsuda; M. Yamauchi; B. Chi; N. Nakashima

doi:10.1039/d1ma00632k

Bifunctional electrochemical properties of La_0.8Sr_0.2Co_0.8M_0.2O_{3-: δ}(M = Ni, Fe, Mn, and Cu): Efficient elemental doping based on a structural and pH-dependent study

J. Cheng, P. Ganesan, Z. Wang, M. Zhang, G. Zhang, N. Maeda, J. Matsuda, M. Yamauchi, B. Chi, N. Nakashima

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

9 Citations (Scopus)

Abstract

Perovskite oxides with a low cost and high catalytic activity are considered as suitable candidates for the oxygen evolution reaction (OER)/oxygen reduction reaction (ORR), but most of them favour only either the ORR or the OER. Besides, their underlying catalytic mechanisms are subject of an ongoing debate. Herein, La0.8Sr0.2CoO3-δ (LSC) was selected as a base perovskite oxide for doping different elements into its B-site to fabricate four different La0.8Sr0.2Co0.8M0.2O3-δ (LSCM; M = Ni, Fe, Mn, and Cu) perovskite oxides. Among the catalysts tested with and without multi-walled carbon nanotubes (MWNTs), La0.8Sr0.2Co0.8Fe0.2O3-δ (LSCF) outperformed any other catalysts in terms of both OER and ORR activity. The OER/ORR activity enhancement with LSCF is also discussed based on spectroscopic and microscopic analyses and lattice oxygen transportation.

Original language	English
Pages (from-to)	272-281
Number of pages	10
Journal	Materials Advances
Volume	3
Issue number	1
DOIs	https://doi.org/10.1039/d1ma00632k
Publication status	Published - Jan 7 2022

All Science Journal Classification (ASJC) codes

Chemistry (miscellaneous)
General Materials Science

Access to Document

10.1039/d1ma00632k

Cite this

@article{35fef4794027432fbef1d100486ce20b,

title = "Bifunctional electrochemical properties of La0.8Sr0.2Co0.8M0.2O3-: δ (M = Ni, Fe, Mn, and Cu): Efficient elemental doping based on a structural and pH-dependent study",

abstract = "Perovskite oxides with a low cost and high catalytic activity are considered as suitable candidates for the oxygen evolution reaction (OER)/oxygen reduction reaction (ORR), but most of them favour only either the ORR or the OER. Besides, their underlying catalytic mechanisms are subject of an ongoing debate. Herein, La0.8Sr0.2CoO3-δ (LSC) was selected as a base perovskite oxide for doping different elements into its B-site to fabricate four different La0.8Sr0.2Co0.8M0.2O3-δ (LSCM; M = Ni, Fe, Mn, and Cu) perovskite oxides. Among the catalysts tested with and without multi-walled carbon nanotubes (MWNTs), La0.8Sr0.2Co0.8Fe0.2O3-δ (LSCF) outperformed any other catalysts in terms of both OER and ORR activity. The OER/ORR activity enhancement with LSCF is also discussed based on spectroscopic and microscopic analyses and lattice oxygen transportation.",

author = "J. Cheng and P. Ganesan and Z. Wang and M. Zhang and G. Zhang and N. Maeda and J. Matsuda and M. Yamauchi and B. Chi and N. Nakashima",

note = "Publisher Copyright: {\textcopyright} 2021 The Royal Society of Chemistry.",

year = "2022",

month = jan,

day = "7",

doi = "10.1039/d1ma00632k",

language = "English",

volume = "3",

pages = "272--281",

journal = "Materials Advances",

issn = "2633-5409",

publisher = "Royal Society of Chemistry",

number = "1",

}

TY - JOUR

T1 - Bifunctional electrochemical properties of La0.8Sr0.2Co0.8M0.2O3-: δ (M = Ni, Fe, Mn, and Cu): Efficient elemental doping based on a structural and pH-dependent study

AU - Cheng, J.

AU - Ganesan, P.

AU - Wang, Z.

AU - Zhang, M.

AU - Zhang, G.

AU - Maeda, N.

AU - Matsuda, J.

AU - Yamauchi, M.

AU - Chi, B.

AU - Nakashima, N.

PY - 2022/1/7

Y1 - 2022/1/7

N2 - Perovskite oxides with a low cost and high catalytic activity are considered as suitable candidates for the oxygen evolution reaction (OER)/oxygen reduction reaction (ORR), but most of them favour only either the ORR or the OER. Besides, their underlying catalytic mechanisms are subject of an ongoing debate. Herein, La0.8Sr0.2CoO3-δ (LSC) was selected as a base perovskite oxide for doping different elements into its B-site to fabricate four different La0.8Sr0.2Co0.8M0.2O3-δ (LSCM; M = Ni, Fe, Mn, and Cu) perovskite oxides. Among the catalysts tested with and without multi-walled carbon nanotubes (MWNTs), La0.8Sr0.2Co0.8Fe0.2O3-δ (LSCF) outperformed any other catalysts in terms of both OER and ORR activity. The OER/ORR activity enhancement with LSCF is also discussed based on spectroscopic and microscopic analyses and lattice oxygen transportation.

AB - Perovskite oxides with a low cost and high catalytic activity are considered as suitable candidates for the oxygen evolution reaction (OER)/oxygen reduction reaction (ORR), but most of them favour only either the ORR or the OER. Besides, their underlying catalytic mechanisms are subject of an ongoing debate. Herein, La0.8Sr0.2CoO3-δ (LSC) was selected as a base perovskite oxide for doping different elements into its B-site to fabricate four different La0.8Sr0.2Co0.8M0.2O3-δ (LSCM; M = Ni, Fe, Mn, and Cu) perovskite oxides. Among the catalysts tested with and without multi-walled carbon nanotubes (MWNTs), La0.8Sr0.2Co0.8Fe0.2O3-δ (LSCF) outperformed any other catalysts in terms of both OER and ORR activity. The OER/ORR activity enhancement with LSCF is also discussed based on spectroscopic and microscopic analyses and lattice oxygen transportation.

UR - http://www.scopus.com/inward/record.url?scp=85122893089&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85122893089&partnerID=8YFLogxK

U2 - 10.1039/d1ma00632k

DO - 10.1039/d1ma00632k

M3 - Article

AN - SCOPUS:85122893089

SN - 2633-5409

VL - 3

SP - 272

EP - 281

JO - Materials Advances

JF - Materials Advances

IS - 1

ER -

Bifunctional electrochemical properties of La_0.8Sr_0.2Co_0.8M_0.2O_{3-: δ}(M = Ni, Fe, Mn, and Cu): Efficient elemental doping based on a structural and pH-dependent study

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this