Effect of electronic coupling on the electrocatalytic performance of Ag-MFe2O4 (M = Co, Mn) nanocomposites

Yingjie Chen; Shiben Liu; Zhihao Shi; Jianhua Yu; Hongzhou Dong; Yong Qin; Liyan Yu; Lifeng Dong

doi:10.1149/2.1781713jes

Effect of electronic coupling on the electrocatalytic performance of Ag-MFe₂O₄ (M = Co, Mn) nanocomposites

Yingjie Chen, Shiben Liu, Zhihao Shi, Jianhua Yu, Hongzhou Dong, Yong Qin, Liyan Yu, Lifeng Dong

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

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Abstract

Ag-MFe₂O₄ (M = Co, Mn) nanocomposites were synthesized and loaded onto carbon supports. As-prepared Ag-MFe₂O₄/C demonstrated higher catalytic activity for oxygen reduction reaction (ORR) than Ag+MFe₂O₄/C. The direct coupling and electron transfer between Ag and MFe₂O₄ in nanocomposites were proposed to enhance their catalytic activities. The Koutecky-Levich plots confirmed a direct four-electron reaction pathway for the ORR on Ag-MFe₂O₄/C. Furthermore, Ag-MFe₂O₄/C showed superior catalytic activities and excellent stability for oxygen evolution reaction (OER). Thus, Ag-MFe₂O₄/C nanoparticle are potential non-Pt candidates with bi-functional catalytic activity for ORR and OER.

Original language	English
Pages (from-to)	F1483-F1488
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	13
DOIs	https://doi.org/10.1149/2.1781713jes
State	Published - 2017
Externally published	Yes

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title = "Effect of electronic coupling on the electrocatalytic performance of Ag-MFe2O4 (M = Co, Mn) nanocomposites",

abstract = "Ag-MFe2O4 (M = Co, Mn) nanocomposites were synthesized and loaded onto carbon supports. As-prepared Ag-MFe2O4/C demonstrated higher catalytic activity for oxygen reduction reaction (ORR) than Ag+MFe2O4/C. The direct coupling and electron transfer between Ag and MFe2O4 in nanocomposites were proposed to enhance their catalytic activities. The Koutecky-Levich plots confirmed a direct four-electron reaction pathway for the ORR on Ag-MFe2O4/C. Furthermore, Ag-MFe2O4/C showed superior catalytic activities and excellent stability for oxygen evolution reaction (OER). Thus, Ag-MFe2O4/C nanoparticle are potential non-Pt candidates with bi-functional catalytic activity for ORR and OER.",

author = "Yingjie Chen and Shiben Liu and Zhihao Shi and Jianhua Yu and Hongzhou Dong and Yong Qin and Liyan Yu and Lifeng Dong",

year = "2017",

doi = "10.1149/2.1781713jes",

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journal = "Journal of the Electrochemical Society",

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TY - JOUR

T1 - Effect of electronic coupling on the electrocatalytic performance of Ag-MFe2O4 (M = Co, Mn) nanocomposites

AU - Chen, Yingjie

AU - Liu, Shiben

AU - Shi, Zhihao

AU - Yu, Jianhua

AU - Dong, Hongzhou

AU - Qin, Yong

AU - Yu, Liyan

AU - Dong, Lifeng

PY - 2017

Y1 - 2017

N2 - Ag-MFe2O4 (M = Co, Mn) nanocomposites were synthesized and loaded onto carbon supports. As-prepared Ag-MFe2O4/C demonstrated higher catalytic activity for oxygen reduction reaction (ORR) than Ag+MFe2O4/C. The direct coupling and electron transfer between Ag and MFe2O4 in nanocomposites were proposed to enhance their catalytic activities. The Koutecky-Levich plots confirmed a direct four-electron reaction pathway for the ORR on Ag-MFe2O4/C. Furthermore, Ag-MFe2O4/C showed superior catalytic activities and excellent stability for oxygen evolution reaction (OER). Thus, Ag-MFe2O4/C nanoparticle are potential non-Pt candidates with bi-functional catalytic activity for ORR and OER.

AB - Ag-MFe2O4 (M = Co, Mn) nanocomposites were synthesized and loaded onto carbon supports. As-prepared Ag-MFe2O4/C demonstrated higher catalytic activity for oxygen reduction reaction (ORR) than Ag+MFe2O4/C. The direct coupling and electron transfer between Ag and MFe2O4 in nanocomposites were proposed to enhance their catalytic activities. The Koutecky-Levich plots confirmed a direct four-electron reaction pathway for the ORR on Ag-MFe2O4/C. Furthermore, Ag-MFe2O4/C showed superior catalytic activities and excellent stability for oxygen evolution reaction (OER). Thus, Ag-MFe2O4/C nanoparticle are potential non-Pt candidates with bi-functional catalytic activity for ORR and OER.

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U2 - 10.1149/2.1781713jes

DO - 10.1149/2.1781713jes

M3 - 文章

AN - SCOPUS:85033664813

SN - 0013-4651

VL - 164

SP - F1483-F1488

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 13

ER -

Effect of electronic coupling on the electrocatalytic performance of Ag-MFe₂O₄ (M = Co, Mn) nanocomposites

Abstract

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