Facile synthesis of Co-Ni layered double hydroxides nanosheets wrapped on a prism-like metal-organic framework for efficient oxygen evolution reaction

Dongyu Han; Lin Hao; Mengrou Chang; Jiangxue Dong; Yongjun Gao; Yufan Zhang

doi:10.1016/j.jcis.2022.12.026

Facile synthesis of Co-Ni layered double hydroxides nanosheets wrapped on a prism-like metal-organic framework for efficient oxygen evolution reaction

J Colloid Interface Sci. 2023 Mar 15:634:14-21. doi: 10.1016/j.jcis.2022.12.026. Epub 2022 Dec 10.

Authors

Dongyu Han¹, Lin Hao², Mengrou Chang¹, Jiangxue Dong¹, Yongjun Gao¹, Yufan Zhang³

Affiliations

¹ 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 Environmental Science, Institute of Life Science and Green Development, Hebei University, 071002 Baoding, PR China.
² College of Science, Hebei Agricultural University, 071001 Baoding, PR China.
³ 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 Environmental Science, Institute of Life Science and Green Development, Hebei University, 071002 Baoding, PR China. Electronic address: zyf@hbu.edu.cn.

PMID: 36528967
DOI: 10.1016/j.jcis.2022.12.026

Abstract

The construction of low-cost oxygen evolution reaction (OER) electrocatalysts with high activity and good durability is a considerable challenge for facilitating the efficient utilization of green energy. Herein, the prism-like materials of institute lavoisier frameworks-88 (MIL-88) was first synthesized by a hydrothermal method. Then, Co-Ni layered double hydroxides (CoNi-LDHs) nanosheets were directly wrapped on the MIL-88 surface by electrodeposition to form core-shell MIL-88@CoNi-LDHs composites. Due to the distinct structure and synergistic effect between the MIL-88 core and CoNi-LDHs shell, it was found that MIL-88@CoNi-LDHs had outstanding OER activity with a small Tafel slope (45.55 mV dec^-1), low overpotential (314 mV) at 10 mA cm^-2, and superior durability. This study provides a prospective pathway to exploit highly efficient low-cost electrocatalysts for OER.

Keywords: Co-Ni layered double hydroxides; Core-shell structure; Materials of institute lavoisier frameworks; Oxygen evolution reaction.

MeSH terms

Electroplating
Hydroxides
Metal-Organic Frameworks*
Oxygen
Prospective Studies

Substances

Metal-Organic Frameworks
Hydroxides
Oxygen