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

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 p...

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Bibliographic Details
Published in:Nano research 2024-05, Vol.17 (5), p.4307-4313
Main Authors: Lang, Zhiquan, Song, Guang-Ling, Liao, Xingpeng, Huang, Wenzhong, Zhu, Yixing, Wang, Haipeng, Zheng, Dajiang
Format: Article
Language:English
Subjects:
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Catalysts
Chemistry and Materials Science
Condensed Matter Physics
Controllability
Corrosion
Electrocatalysis
Electrocatalysts
Hydrogen
Hydroxides
Magnetron sputtering
Materials Science
Nanotechnology
Nickel
Oxidation
Oxygen evolution reactions
Research Article
Sputtered films
Synthesis
Transition metals
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Summary: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.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-023-6385-4