Metal-organic framework-derived heterostructured ZnCo2O4@FeOOH hollow polyhedrons for oxygen evolution reaction

Zhou Yu; Yu Bai; Naiqing Zhang; Weiwei Yang; Jiahuan Ma; Zhenhua Wang; Wang Sun; Jinshuo Qiao; Kening Sun

doi:10.1016/j.jallcom.2020.155067

Metal-organic framework-derived heterostructured ZnCo₂O₄@FeOOH hollow polyhedrons for oxygen evolution reaction

Zhou Yu, Yu Bai^*, Naiqing Zhang, Weiwei Yang, Jiahuan Ma, Zhenhua Wang, Wang Sun, Jinshuo Qiao, Kening Sun

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

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

19 Citations (Scopus)

Abstract

Exploration of non-noble metal electrocatalysts for efficient and durable oxygen evolution reaction (OER) is highly desirable but still remains a great challenge. Herein, we report the rational design and synthesis of heterostructured ZnCo₂O₄/FeOOH hollow polyhedrons (ZnCo₂O₄/FeOOH HPs) as a high-efficient electrocatalyst for OER in alkaline condition. ZnCo₂O₄ hollow polyhedrons (ZnCo₂O₄ HPs), which derived from the bimetallic Zn, Co-zeolitic imidazolate frameworks (ZnCo-ZIFs), are employed as the substrate for the growth of FeOOH nanowires. Benefiting from the hollow structure as well as the synergistic effect between ZnCo₂O₄ HPs and FeOOH nanowires, the ZnCo₂O₄/FeOOH HPs show enhanced OER activity with a low overpotential of 299 mV at the current density of 10 mA cm⁻² and excellent durability. This work offers a promising strategy to develop high-efficient and robust non-noble metal electrocatalysts for large-scale electrochemical applications.

Original language	English
Article number	155067
Journal	Journal of Alloys and Compounds
Volume	832
DOIs	https://doi.org/10.1016/j.jallcom.2020.155067
Publication status	Published - 15 Aug 2020

Keywords

Heterostructural hollow polyhedrons
Metal-organic frameworks
Oxygen evolution reaction
Water splitting

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10.1016/j.jallcom.2020.155067

Cite this

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title = "Metal-organic framework-derived heterostructured ZnCo2O4@FeOOH hollow polyhedrons for oxygen evolution reaction",

abstract = "Exploration of non-noble metal electrocatalysts for efficient and durable oxygen evolution reaction (OER) is highly desirable but still remains a great challenge. Herein, we report the rational design and synthesis of heterostructured ZnCo2O4/FeOOH hollow polyhedrons (ZnCo2O4/FeOOH HPs) as a high-efficient electrocatalyst for OER in alkaline condition. ZnCo2O4 hollow polyhedrons (ZnCo2O4 HPs), which derived from the bimetallic Zn, Co-zeolitic imidazolate frameworks (ZnCo-ZIFs), are employed as the substrate for the growth of FeOOH nanowires. Benefiting from the hollow structure as well as the synergistic effect between ZnCo2O4 HPs and FeOOH nanowires, the ZnCo2O4/FeOOH HPs show enhanced OER activity with a low overpotential of 299 mV at the current density of 10 mA cm−2 and excellent durability. This work offers a promising strategy to develop high-efficient and robust non-noble metal electrocatalysts for large-scale electrochemical applications.",

keywords = "Heterostructural hollow polyhedrons, Metal-organic frameworks, Oxygen evolution reaction, Water splitting",

author = "Zhou Yu and Yu Bai and Naiqing Zhang and Weiwei Yang and Jiahuan Ma and Zhenhua Wang and Wang Sun and Jinshuo Qiao and Kening Sun",

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AU - Yu, Zhou

AU - Bai, Yu

AU - Zhang, Naiqing

AU - Yang, Weiwei

AU - Ma, Jiahuan

AU - Wang, Zhenhua

AU - Sun, Wang

AU - Qiao, Jinshuo

AU - Sun, Kening

PY - 2020/8/15

Y1 - 2020/8/15

N2 - Exploration of non-noble metal electrocatalysts for efficient and durable oxygen evolution reaction (OER) is highly desirable but still remains a great challenge. Herein, we report the rational design and synthesis of heterostructured ZnCo2O4/FeOOH hollow polyhedrons (ZnCo2O4/FeOOH HPs) as a high-efficient electrocatalyst for OER in alkaline condition. ZnCo2O4 hollow polyhedrons (ZnCo2O4 HPs), which derived from the bimetallic Zn, Co-zeolitic imidazolate frameworks (ZnCo-ZIFs), are employed as the substrate for the growth of FeOOH nanowires. Benefiting from the hollow structure as well as the synergistic effect between ZnCo2O4 HPs and FeOOH nanowires, the ZnCo2O4/FeOOH HPs show enhanced OER activity with a low overpotential of 299 mV at the current density of 10 mA cm−2 and excellent durability. This work offers a promising strategy to develop high-efficient and robust non-noble metal electrocatalysts for large-scale electrochemical applications.

AB - Exploration of non-noble metal electrocatalysts for efficient and durable oxygen evolution reaction (OER) is highly desirable but still remains a great challenge. Herein, we report the rational design and synthesis of heterostructured ZnCo2O4/FeOOH hollow polyhedrons (ZnCo2O4/FeOOH HPs) as a high-efficient electrocatalyst for OER in alkaline condition. ZnCo2O4 hollow polyhedrons (ZnCo2O4 HPs), which derived from the bimetallic Zn, Co-zeolitic imidazolate frameworks (ZnCo-ZIFs), are employed as the substrate for the growth of FeOOH nanowires. Benefiting from the hollow structure as well as the synergistic effect between ZnCo2O4 HPs and FeOOH nanowires, the ZnCo2O4/FeOOH HPs show enhanced OER activity with a low overpotential of 299 mV at the current density of 10 mA cm−2 and excellent durability. This work offers a promising strategy to develop high-efficient and robust non-noble metal electrocatalysts for large-scale electrochemical applications.

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