Constructing Neuron-like Structured NiS<sub>2</sub>/MOF Composites with Enhanced Regulation of Electron Transport and Active Sites for Oxygen Evolution
Constructing fast electron transfer pathways and abundant electro-active sites is an effective strategy to improve the oxygen evolution reaction (OER) performance of catalysts. Herein, structural engineering and dual-phase engineering were employed to construct a NiS<sub>2</sub> nanopart...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/30/1/80 |
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| Summary: | Constructing fast electron transfer pathways and abundant electro-active sites is an effective strategy to improve the oxygen evolution reaction (OER) performance of catalysts. Herein, structural engineering and dual-phase engineering were employed to construct a NiS<sub>2</sub> nanoparticle-encapsulated MOF configured with a pseudo-neuronal structure (NiS<sub>2</sub>/MOF/HT). It was found that the pseudo-neuronal structure, constructed with a carbon nanohorn (CNH) and carbon nanotube (CNT), provided fast electron transfer pathways and abundant exposed active sites. Moreover, the NiS<sub>2</sub>/MOF/HT composite obtained via partial vulcanization not only inherited the pseudo-neuronal structure but also prevented the aggregation and growth of NiS<sub>2</sub> particles. NiS<sub>2</sub>/MOF composites provide various active sites. With the combination of the promotion of electronic transfer and enrichment of electro-active sites (NiS<sub>2</sub>, MOF), NiS<sub>2</sub>/MOF/HT showed excellent performance, whose overpotential at 25 mA cm<sup>−2</sup> was reduced by 19.5% compared with MOF/HT. |
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| ISSN: | 1420-3049 |