MOF-Derived Zn-Doped CoSe2 as an Efficient and Stable Free-Standing Catalyst for Oxygen Evolution Reaction

Qiuchun Dong; Qian Wang; Ziyang Dai; Huajun Qiu; Xiaochen Dong

doi:10.1021/acsami.6b10160

MOF-Derived Zn-Doped CoSe₂ as an Efficient and Stable Free-Standing Catalyst for Oxygen Evolution Reaction

Qiuchun Dong, Qian Wang, Ziyang Dai, Huajun Qiu, Xiaochen Dong

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

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

198 Scopus citations

Abstract

Developing highly active electrocatalysts with low cost and high efficiency for oxygen evolution reactions (OER) is important for the practical implementations of hydrogen energy. Here, we report a Zn-doped CoSe₂ nanosheets grown on free-standing carbon fabric collector (CFC), which was synthesized by using a metal-organic framework (MOF) as precursor and followed by a selenylation process. Importantly, the Zn-doped CoSe₂/CFC electrode exhibited an obviously enhanced catalytic activity for OER in 1 M KOH aqueous solution compared with CoSe₂/CFC, showing a small overpotential of 356 mV for a current density of 10 mA cm^-2, a small Tafel slope of 88 mV dec^-1, and an excellent stability. The robust and free-standing electrode shows great potential as an economic catalyst for OER applications.

Original language	English
Pages (from-to)	26902-26907
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	40
DOIs	https://doi.org/10.1021/acsami.6b10160
State	Published - 12 Oct 2016

Keywords

atomic doping
CoSe
free-standing
MOF derivative
water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsami.6b10160

Cite this

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title = "MOF-Derived Zn-Doped CoSe2 as an Efficient and Stable Free-Standing Catalyst for Oxygen Evolution Reaction",

abstract = "Developing highly active electrocatalysts with low cost and high efficiency for oxygen evolution reactions (OER) is important for the practical implementations of hydrogen energy. Here, we report a Zn-doped CoSe2 nanosheets grown on free-standing carbon fabric collector (CFC), which was synthesized by using a metal-organic framework (MOF) as precursor and followed by a selenylation process. Importantly, the Zn-doped CoSe2/CFC electrode exhibited an obviously enhanced catalytic activity for OER in 1 M KOH aqueous solution compared with CoSe2/CFC, showing a small overpotential of 356 mV for a current density of 10 mA cm-2, a small Tafel slope of 88 mV dec-1, and an excellent stability. The robust and free-standing electrode shows great potential as an economic catalyst for OER applications.",

keywords = "atomic doping, CoSe, free-standing, MOF derivative, water splitting",

author = "Qiuchun Dong and Qian Wang and Ziyang Dai and Huajun Qiu and Xiaochen Dong",

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T1 - MOF-Derived Zn-Doped CoSe2 as an Efficient and Stable Free-Standing Catalyst for Oxygen Evolution Reaction

AU - Dong, Qiuchun

AU - Wang, Qian

AU - Dai, Ziyang

AU - Qiu, Huajun

AU - Dong, Xiaochen

PY - 2016/10/12

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AB - Developing highly active electrocatalysts with low cost and high efficiency for oxygen evolution reactions (OER) is important for the practical implementations of hydrogen energy. Here, we report a Zn-doped CoSe2 nanosheets grown on free-standing carbon fabric collector (CFC), which was synthesized by using a metal-organic framework (MOF) as precursor and followed by a selenylation process. Importantly, the Zn-doped CoSe2/CFC electrode exhibited an obviously enhanced catalytic activity for OER in 1 M KOH aqueous solution compared with CoSe2/CFC, showing a small overpotential of 356 mV for a current density of 10 mA cm-2, a small Tafel slope of 88 mV dec-1, and an excellent stability. The robust and free-standing electrode shows great potential as an economic catalyst for OER applications.

KW - atomic doping

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KW - MOF derivative

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