CoFe-(Oxy)Hydroxide@Co<sub>3</sub>O<sub>4</sub>-CeO<sub>2</sub> Core–Shell Nanorods on Nickel Foam for Oxygen Evolution Reaction
The development of highly active and cost-effective electrocatalysts, such as transition-metal oxides and (oxy)hydroxides, for the oxygen evolution reaction (OER) is of great importance in water-splitting electrolyzers. Building nanohybrids is an effective strategy to improve the OER activity of transition-metal oxides and (oxy)hydroxides. In this work, we present a feather-like CoFe-(oxy)hydroxide@Co3O4-CeO2 3D hierarchical heterostructure on nickel foam (NF) by coupling amorphous CoFe-(oxy)hydroxide on Co3O4-CeO2 hybrid nanorods for enhanced OER performance. Owing to the synergistic effect and interface engineering of CoFe-(oxy)hydroxide, Co3O4, and CeO2, as well as the large electrochemically active surface area with enhanced exposed active sites, the as-prepared CoFe-(oxy)hydroxide@Co3O4-CeO2 electrode exhibits superior activity with a required overpotential of 0.228 V to achieve 10 mA cm–2 in 1.0 M KOH, which is among the best values for Co3O4-based and CoFe-based OER electrocatalysts.
Authors
- Jun-Lin Li (ORCID: https://orcid.org/0009-0001-5729-4471)
- Beibei Xiao (ORCID: https://orcid.org/0000-0001-9637-7512)
- Jianli Mi (ORCID: https://orcid.org/0000-0001-6454-5040)
- Jidong Song
- Yang‐Chun Yong (ORCID: https://orcid.org/0000-0003-1216-5163)
- Zhuo-Lin Qing
- Hao Hu (ORCID: https://orcid.org/0009-0008-3334-8368)
- Fu‐Ming Qi
Institutions
- Jiangsu University (CN)
- Jiangsu University of Science and Technology (CN)
Publication Details
- Journal
- ACS Applied Nano Materials
- Published
- 2024-09-02
- DOI
- https://doi.org/10.1021/acsanm.4c03363
- Citations
- 4
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.41
Funders
- Natural Science Foundation of Jiangsu Province