Preparation and Catalytic Performance of α-MnO2/Sr2Ni0.4Co1.6O6 Hybrid Bifunctional Electrocatalysts for Oxygen Reaction

The double perovskite Sr 2 Ni 0.4 Co 1.6 O 6 was prepared, and a set of α-MnO 2 /Sr 2 Ni 0.4 Co 1.6 O 6 hybrids with different α-MnO 2 loadings were fabricated. The electrochemical experiments illustrate that the hybrid catalyst (40 wt% of α-MnO 2 ) exhibited the highest activity, and the current de...

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Veröffentlicht in:Catalysis letters 2022-04, Vol.152 (4), p.1040-1049
Hauptverfasser: Huang, Hong-Xia, Liu, Jin-Liang, Wang, Cheng, Liang, Da-Ming, Wang, Hua-Ling
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container_issue 4
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container_title Catalysis letters
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creator Huang, Hong-Xia
Liu, Jin-Liang
Wang, Cheng
Liang, Da-Ming
Wang, Hua-Ling
description The double perovskite Sr 2 Ni 0.4 Co 1.6 O 6 was prepared, and a set of α-MnO 2 /Sr 2 Ni 0.4 Co 1.6 O 6 hybrids with different α-MnO 2 loadings were fabricated. The electrochemical experiments illustrate that the hybrid catalyst (40 wt% of α-MnO 2 ) exhibited the highest activity, and the current density for the oxygen reduction reaction and oxygen evolution reaction were 0.2389 A cm −2 (− 0.6 V vs. Hg/HgO) and 0.3951 A cm −2 (1 V vs. Hg/HgO), respectively. The synergistic effect between α-MnO 2 and Sr 2 Ni 0.4 Co 1.6 O 6 was responsible for the improved catalytic activity. Graphic Abstract
doi_str_mv 10.1007/s10562-021-03687-5
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subjects Catalysis
Catalytic activity
Chemistry
Chemistry and Materials Science
Composite materials
Electrocatalysts
Electrodes
Ethanol
Industrial Chemistry/Chemical Engineering
Manganese dioxide
Organometallic Chemistry
Oxygen evolution reactions
Oxygen reduction reactions
Perovskites
Physical Chemistry
Synergistic effect
title Preparation and Catalytic Performance of α-MnO2/Sr2Ni0.4Co1.6O6 Hybrid Bifunctional Electrocatalysts for Oxygen Reaction
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