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Research Article

Conversion of magnetron-sputtered sacrificial intermediate layer into a stable FeCo-LDH catalyst for oxygen evolution reaction

Zhiquan Lang1Guang-Ling Song1,2,3,4( )Xingpeng Liao1Wenzhong Huang5Yixing Zhu6Haipeng Wang1Dajiang Zheng1
Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, Xiamen 361005, China
Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China
The University of Queensland, St. Lucia, OLD 4072, Australia
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
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Graphical Abstract

The study introduced a scalable and controllable approach to convert a co-sputtered sacrificial film into a stable FeCo-layered double hydroxide (LDH) electrocatalyst for enhanced oxygen evolution reaction efficiency.

Abstract

Controllable and scalable preparation of electrocatalyst materials holds significant importance for their practical application. Magnetron sputtering is a highly effective synthesis method, known for its producing uniform films and allowing easy control of component compositions. In this paper, we propose an in-situ synthesis method for layered double hydroxide (LDH) electrocatalysts through sacrificing magnetron sputtered films. The resulting FeCo-LDH catalyst demonstrated a low overpotential of only 300 mV at 10 mA·cm−2. Furthermore, we conducted spectroscopic analysis to investigate the surface changes of the catalysts during the oxygen evolution reaction (OER) process. Our findings indicated that the formation of Co oxyhydroxides plays a beneficial role in enhancing the catalytical performance of the FeCo-LDH for OER reaction. This restructuring strategy of converting a magnetron-sputtered sacrificial film into a catalytical LDH introduces a new avenue to the synthesis of transition metal-based electrocatalysts.

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Nano Research
Pages 4307-4313
Cite this article:
Lang Z, Song G-L, Liao X, et al. Conversion of magnetron-sputtered sacrificial intermediate layer into a stable FeCo-LDH catalyst for oxygen evolution reaction. Nano Research, 2024, 17(5): 4307-4313. https://doi.org/10.1007/s12274-023-6385-4
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Received: 09 September 2023
Revised: 24 November 2023
Accepted: 30 November 2023
Published: 13 January 2024
© Tsinghua University Press 2023
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