Facile Synthesis of Ni-BDC/LDH Heterostructured Catalysts With Enhanced Catalytic Activity for Oxygen Evolution Reaction

IF 1.9 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Desheng Li, Xingyu Guo, Zhengrong Xu, Qing Chen, Rui Liu, Congling Li
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Abstract

The design and synthesis of MOF-based heterostructures have emerged as a promising approach for optimizing the performance of oxygen evolution reaction (OER). In this study, we report the synthesis of nickel-benzene dicarboxylate (Ni-BDC)/layered double hydroxide (LDH) heterostructured catalyst on nickel foam (NF). Driven by the difference in their work functions, interfacial electrons transfer from Ni-LDH to Ni-BDC and elevate the valence state of Ni in Ni-LDH, thereby facilitating the formation of active sties and improving the catalytic activity. The Ni-BDC/LDH-0.5@NF catalyst demonstrated superior OER performance requiring an overpotential of only 218 mV to achieve a current density of 10 mA cm−2 and a low Tafel slope of 108 mV dec−1. Furthermore, the catalyst exhibits exceptional electrochemical stability. This work provides an effective approach for constructing MOF/LDH heterostructure catalysts and offers valuable insights into the structure-activity relationship for improving OER performance.

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来源期刊
ChemistrySelect
ChemistrySelect Chemistry-General Chemistry
CiteScore
3.30
自引率
4.80%
发文量
1809
审稿时长
1.6 months
期刊介绍: ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.
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