Design of cerium dioxide anchored in cobalt-iron layered double hydroxide hollow polyhedra via an ion exchange strategy for the oxygen evolution reaction

Yibing Chen; Lin Hao; Hanshuo Ma; Tingyu Zhang; Hongyuan Yan; Yufan Zhang

doi:10.1016/j.jcis.2024.12.196

Design of cerium dioxide anchored in cobalt-iron layered double hydroxide hollow polyhedra via an ion exchange strategy for the oxygen evolution reaction

J Colloid Interface Sci. 2024 Dec 27;683(Pt 2):411-420. doi: 10.1016/j.jcis.2024.12.196. Online ahead of print.

Authors

Yibing Chen¹, Lin Hao², Hanshuo Ma¹, Tingyu Zhang¹, Hongyuan Yan³, Yufan Zhang⁴

Affiliations

¹ State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China.
² College of Science, Hebei Agricultural University, 071001 Baoding, PR China.
³ State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China. Electronic address: [email protected].
⁴ State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China. Electronic address: [email protected].

PMID: 39740558
DOI: 10.1016/j.jcis.2024.12.196

Abstract

The oxygen evolution reaction (OER) is hindered by slow kinetics due to its four-electron process, limiting overall efficiency. The rational design of metal-organic framework (MOF)-based nanomaterials is crucial for enhancing the oxygen production rate. Using a straightforward strategy, we synthesized cobalt-iron layered double hydroxide (CoFe-LDH) hollow polyhedra loaded with CeO₂, with zeolite imidazolate framework-67 (ZIF-67) serving as the precursor. The CoFe-LDH/CeO₂ composite demonstrates outstanding OER performance, including a lower overpotential (315 mV) at 10 mA cm^-2, a smaller Tafel slope (49.53 mV dec^-1), and remarkable stability. The high OER activity of CoFe-LDH/CeO₂ is attributed to the electron transition of CeO₂ within the CoFe-LDH carrier layer, which enhances electron interactions with the CoFe-LDH hollow polyhedra and promotes the catalytic reaction. Leveraging the excellent catalytic properties of CoFe-LDH/CeO₂, this study offers a promising approach for developing green, cost-effective, and efficient electrocatalysts.

Keywords: CeO(2); Co-Fe layered double hydroxides; Hollow polyhedral; Oxygen evolution reaction; ZIF-67.