Lamella-heterostructured nanoporous bimetallic iron-cobalt alloy/oxyhydroxide and cerium oxynitride electrodes as stable catalysts for oxygen evolution

Zeng, Shu‐Pei; Shi, Hang; Dai, Tianyi; Liu, Yang; Wen, Zi; Han, Gao‐Feng; Wang, Tonghui; Zhang, Wei; Lang, Xingyou; Zheng, Weitao; Jiang, Qing

doi:10.1038/s41467-023-37597-4

articleNature CommunicationsMar 31, 2023GOLD OA

Lamella-heterostructured nanoporous bimetallic iron-cobalt alloy/oxyhydroxide and cerium oxynitride electrodes as stable catalysts for oxygen evolution

SZShu‐Pei Zeng HSHang Shi TDTianyi Dai YLYang Liu ZWZi Wen

Jilin University

Indexed incrossrefdoaj

Abstract

Abstract Developing robust nonprecious-metal electrocatalysts with high activity towards sluggish oxygen-evolution reaction is paramount for large-scale hydrogen production via electrochemical water splitting. Here we report that self-supported laminate composite electrodes composed of alternating nanoporous bimetallic iron-cobalt alloy/oxyhydroxide and cerium oxynitride (FeCo/CeO 2− x N x ) heterolamellas hold great promise as highly efficient electrocatalysts for alkaline oxygen-evolution reaction. By virtue of three-dimensional nanoporous architecture to offer abundant and accessible electroactive CoFeOOH/CeO 2− x N x heterostructure interfaces through facilitating electron transfer and mass transport,…

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Topics & keywords

Topics

Keywords

Oxygen evolution
Overpotential
Tafel equation
Nanoporous
Electrocatalyst
Materials science
Bimetallic strip
Chemical engineering

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