Synergistic Binary Fe–Co Nanocluster Supported on Defective Tungsten Oxide as Efficient Oxygen Reduction Electrocatalyst in Zinc‐Air Battery

Qinglin Han; Ximeng Zhao; Yuhong Luo; Lanlan Wu; Shujuan Sun; Jingde Li; Yanji Wang; Guihua Liu; Zhongwei Chen

doi:10.1002/advs.202104237

Advanced Science (Feb 2022)

Synergistic Binary Fe–Co Nanocluster Supported on Defective Tungsten Oxide as Efficient Oxygen Reduction Electrocatalyst in Zinc‐Air Battery

Qinglin Han,
Ximeng Zhao,
Yuhong Luo,
Lanlan Wu,
Shujuan Sun,
Jingde Li,
Yanji Wang,
Guihua Liu,
Zhongwei Chen

Affiliations

Qinglin Han: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Ximeng Zhao: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Yuhong Luo: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Lanlan Wu: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Shujuan Sun: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Jingde Li: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Yanji Wang: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Guihua Liu: Hebei Provincial Key Laboratory of Green Chemical Technology and Highly Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety National‐Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
Zhongwei Chen: Department of Chemical Engineering University of Waterloo Waterloo ON N2L 3G1 Canada

DOI: https://doi.org/10.1002/advs.202104237
Journal volume & issue: Vol. 9, no. 4
pp. n/a – n/a

Abstract

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Abstract Rational design of metal oxide supported non‐precious metals is essential for the development of stable and high‐efficiency oxygen reduction reaction (ORR) electrocatalysts. Here, an efficient ORR catalyst consisting of binary Fe/Co nanoclusters supported by defective tungsten oxide and embedded N‐doped carbon layer (NC) with a 3D ordered macroporous architecture (3DOM Fe/Co@NC‐WO2−x) is developed. The oxygen deficient 3DOM WO2−x not only serves as a porous and stable support, but also enhances the conductivity and ensures good dispersion of the binary Fe/Co nanocluster, benefiting its ORR catalytic activity. Theoretical calculation shows that there exists a synergistic effect of electron transfer from Fe to Co in the supported binary Fe/Co cluster, promoting the ORR reaction energetics. Accordingly, the 3DOM Fe/Co@NC‐WO2−x catalyst exhibits excellent ORR activity in alkaline medium with a half wave potential (E1/2) of 0.87 V higher than that of Pt/C (0.85 V). The zinc–air batteries assembled by 3DOM Fe/Co@NC‐WO2−x cathode deliver a higher power density and specific capacity than that of Pt/C. A new strategy of combining synergistic binary‐metal nanoclusters and conductive metal oxide support design is provided here to develop efficient and durable ORR electrocatalyst.

Published in Advanced Science

ISSN: 2198-3844 (Online)
Publisher: Wiley
Country of publisher: Germany
LCC subjects: Science
Website: https://onlinelibrary.wiley.com/journal/21983844

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