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; Ganesan Pandian; Z. Wang; M. Zhang; G. Zhang; N. Maeda; J. Matsuda; M. Yamauchi; B. Chi; Naotoshi 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, Ganesan Pandian, Z. Wang, M. Zhang, G. Zhang, N. Maeda, J. Matsuda, M. Yamauchi, B. Chi, Naotoshi Nakashima

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

5 被引用数 (Scopus)

抄録

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.

本文言語	英語
ページ（範囲）	272-281
ページ数	10
ジャーナル	Materials Advances
巻	3
号	1
DOI	https://doi.org/10.1039/d1ma00632k
出版ステータス	出版済み - 1月 7 2022

!!!All Science Journal Classification (ASJC) codes

化学（その他）
材料科学（全般）

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10.1039/d1ma00632k

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「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」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル

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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 Ganesan Pandian and Z. Wang and M. Zhang and G. Zhang and N. Maeda and J. Matsuda and M. Yamauchi and B. Chi and Naotoshi Nakashima",

note = "Funding Information: The authors would like to thank the Materials Characterization Center of Huazhong University of Science and Technology and Ultramicroscopy Research Center (URC) of Kyushu University for characterization assistance. This study was supported by the Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST) and JSPS KAKENHI Grant Number JP16H02083 (for N. N.). Publisher Copyright: {\textcopyright} 2021 The Royal Society of Chemistry.",

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doi = "10.1039/d1ma00632k",

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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 - Pandian, Ganesan

AU - Wang, Z.

AU - Zhang, M.

AU - Zhang, G.

AU - Maeda, N.

AU - Matsuda, J.

AU - Yamauchi, M.

AU - Chi, B.

AU - Nakashima, Naotoshi

N1 - Funding Information: The authors would like to thank the Materials Characterization Center of Huazhong University of Science and Technology and Ultramicroscopy Research Center (URC) of Kyushu University for characterization assistance. This study was supported by the Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST) and JSPS KAKENHI Grant Number JP16H02083 (for N. N.). Publisher Copyright: © 2021 The Royal Society of Chemistry.

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.

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