Metal-Organic-Framework-Derived Yolk-Shell-Structured Cobalt-Based Bimetallic Oxide Polyhedron with High Activity for Electrocatalytic Oxygen Evolution

Zhou Yu; Yu Bai; Yuxuan Liu; Shimin Zhang; Dandan Chen; Naiqing Zhang; Kening Sun

doi:10.1021/acsami.7b07000

Metal-Organic-Framework-Derived Yolk-Shell-Structured Cobalt-Based Bimetallic Oxide Polyhedron with High Activity for Electrocatalytic Oxygen Evolution

Zhou Yu, Yu Bai^*, Yuxuan Liu, Shimin Zhang, Dandan Chen, Naiqing Zhang, Kening Sun

^*Corresponding author for this work

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

61 Citations (Scopus)

Abstract

The development of inexpensive, efficient, and environmentally friendly catalysts for oxygen evolution reaction (OER) is of great significant for green energy utilization. Herein, binary metal oxides (M_xCo_3-xO₄, M = Zn, Ni, and Cu) with yolk-shell polyhedron (YSP) structure were fabricated by facile pyrolysis of bimetallic zeolitic imidazolate frameworks (MCo-ZIFs). Benefiting from the synergistic effects of metal ions and the unique yolk-shell structure, M_xCo_3-xO₄ YSP displays good OER catalytic activity in alkaline media. Impressively, Zn_xCo_3-xO₄ YSP shows a comparable overpotential of 337 mV at 10 mA cm^-2 to commercial RuO₂ and exhibits superior long-term durability. The high activity and good stability reveals its promising application.

Original language	English
Pages (from-to)	31777-31785
Number of pages	9
Journal	ACS applied materials & interfaces
Volume	9
Issue number	37
DOIs	https://doi.org/10.1021/acsami.7b07000
Publication status	Published - 20 Sept 2017
Externally published	Yes

Keywords

alkaline media
bimetallic
binary metal oxide
oxygen evolution reaction
yolk-shell
zeolitic imidazolate frameworks

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title = "Metal-Organic-Framework-Derived Yolk-Shell-Structured Cobalt-Based Bimetallic Oxide Polyhedron with High Activity for Electrocatalytic Oxygen Evolution",

abstract = "The development of inexpensive, efficient, and environmentally friendly catalysts for oxygen evolution reaction (OER) is of great significant for green energy utilization. Herein, binary metal oxides (MxCo3-xO4, M = Zn, Ni, and Cu) with yolk-shell polyhedron (YSP) structure were fabricated by facile pyrolysis of bimetallic zeolitic imidazolate frameworks (MCo-ZIFs). Benefiting from the synergistic effects of metal ions and the unique yolk-shell structure, MxCo3-xO4 YSP displays good OER catalytic activity in alkaline media. Impressively, ZnxCo3-xO4 YSP shows a comparable overpotential of 337 mV at 10 mA cm-2 to commercial RuO2 and exhibits superior long-term durability. The high activity and good stability reveals its promising application.",

keywords = "alkaline media, bimetallic, binary metal oxide, oxygen evolution reaction, yolk-shell, zeolitic imidazolate frameworks",

author = "Zhou Yu and Yu Bai and Yuxuan Liu and Shimin Zhang and Dandan Chen and Naiqing Zhang and Kening Sun",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

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doi = "10.1021/acsami.7b07000",

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AU - Yu, Zhou

AU - Bai, Yu

AU - Liu, Yuxuan

AU - Zhang, Shimin

AU - Chen, Dandan

AU - Zhang, Naiqing

AU - Sun, Kening

PY - 2017/9/20

Y1 - 2017/9/20

N2 - The development of inexpensive, efficient, and environmentally friendly catalysts for oxygen evolution reaction (OER) is of great significant for green energy utilization. Herein, binary metal oxides (MxCo3-xO4, M = Zn, Ni, and Cu) with yolk-shell polyhedron (YSP) structure were fabricated by facile pyrolysis of bimetallic zeolitic imidazolate frameworks (MCo-ZIFs). Benefiting from the synergistic effects of metal ions and the unique yolk-shell structure, MxCo3-xO4 YSP displays good OER catalytic activity in alkaline media. Impressively, ZnxCo3-xO4 YSP shows a comparable overpotential of 337 mV at 10 mA cm-2 to commercial RuO2 and exhibits superior long-term durability. The high activity and good stability reveals its promising application.

AB - The development of inexpensive, efficient, and environmentally friendly catalysts for oxygen evolution reaction (OER) is of great significant for green energy utilization. Herein, binary metal oxides (MxCo3-xO4, M = Zn, Ni, and Cu) with yolk-shell polyhedron (YSP) structure were fabricated by facile pyrolysis of bimetallic zeolitic imidazolate frameworks (MCo-ZIFs). Benefiting from the synergistic effects of metal ions and the unique yolk-shell structure, MxCo3-xO4 YSP displays good OER catalytic activity in alkaline media. Impressively, ZnxCo3-xO4 YSP shows a comparable overpotential of 337 mV at 10 mA cm-2 to commercial RuO2 and exhibits superior long-term durability. The high activity and good stability reveals its promising application.

KW - alkaline media

KW - bimetallic

KW - binary metal oxide

KW - oxygen evolution reaction

KW - yolk-shell

KW - zeolitic imidazolate frameworks

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SN - 1944-8244

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ER -

Metal-Organic-Framework-Derived Yolk-Shell-Structured Cobalt-Based Bimetallic Oxide Polyhedron with High Activity for Electrocatalytic Oxygen Evolution

Abstract

Keywords

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