Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites
This study explores the hydrogen generation potential via water-splitting reactions under UV-vis radiation by using a synergistic assembly of ZnO nanoparticles integrated with MoS<sub>2</sub>, single-walled carbon nanotubes (SWNTs), and crystalline silicon nanowires (SiNWs) to create the...
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2024-11-01
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| author | Abniel Machín María C. Cotto Francisco Márquez Jesús Díaz-Sánchez Celia Polop Carmen Morant |
| author_facet | Abniel Machín María C. Cotto Francisco Márquez Jesús Díaz-Sánchez Celia Polop Carmen Morant |
| author_sort | Abniel Machín |
| collection | DOAJ |
| description | This study explores the hydrogen generation potential via water-splitting reactions under UV-vis radiation by using a synergistic assembly of ZnO nanoparticles integrated with MoS<sub>2</sub>, single-walled carbon nanotubes (SWNTs), and crystalline silicon nanowires (SiNWs) to create the MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs nanocomposites. A comparative analysis of MoS<sub>2</sub> synthesized through chemical and physical exfoliation methods revealed that the chemically exfoliated MoS<sub>2</sub> exhibited superior performance, thereby being selected for all subsequent measurements. The nanostructured materials demonstrated exceptional surface characteristics, with specific surface areas exceeding 300 m<sup>2</sup> g<sup>−1</sup>. Notably, the hydrogen production rate achieved by a composite comprising 5% MoS<sub>2</sub>, 1.7% SiNWs, and 13.3% SWNTs at an 80% ZnONPs base was approximately 3909 µmol h<sup>−1</sup>g<sup>−1</sup> under 500 nm wavelength radiation, marking a significant improvement of over 40-fold relative to pristine ZnONPs. This enhancement underscores the remarkable photocatalytic efficiency of the composites, maintaining high hydrogen production rates above 1500 µmol h<sup>−1</sup>g<sup>−1</sup> even under radiation wavelengths exceeding 600 nm. Furthermore, the potential of these composites for energy storage and conversion applications, specifically within rechargeable lithium-ion batteries, was investigated. Composites, similar to those utilized for hydrogen production but excluding ZnONPs to address its limited theoretical capacity and electrical conductivity, were developed. The focus was on utilizing MoS<sub>2</sub>, SiNWs, and SWNTs as anode materials for Li-ion batteries. This strategic combination significantly improved the electronic conductivity and mechanical stability of the composite. Specifically, the composite with 56% MoS<sub>2</sub>, 24% SiNWs, and 20% SWNTs offered remarkable cyclic performance with high specific capacity values, achieving a complete stability of 1000 mA h g<sup>−1</sup> after 100 cycles at 1 A g<sup>−1</sup>. These results illuminate the dual utility of the composites, not only as innovative catalysts for hydrogen production but also as advanced materials for energy storage technologies, showcasing their potential in contributing to sustainable energy solutions. |
| format | Article |
| id | doaj-art-714de5be00c24dbe85d32bace30a3f32 |
| institution | Kabale University |
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| language | English |
| publishDate | 2024-11-01 |
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| series | Nanomaterials |
| spelling | doaj-art-714de5be00c24dbe85d32bace30a3f322024-12-13T16:29:21ZengMDPI AGNanomaterials2079-49912024-11-011423191110.3390/nano14231911Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs NanocompositesAbniel Machín0María C. Cotto1Francisco Márquez2Jesús Díaz-Sánchez3Celia Polop4Carmen Morant5Division of Natural Sciences and Technology, Universidad Ana G. Méndez-Cupey Campus, San Juan, PR 00926, USANanomaterials Research Group, School of Natural Sciences and Technology, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USANanomaterials Research Group, School of Natural Sciences and Technology, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USADepartment of Condensed Matter Physics, Universidad Autónoma de Madrid, 28049 Madrid, SpainDepartment of Condensed Matter Physics, Universidad Autónoma de Madrid, 28049 Madrid, SpainInstituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, 28049 Madrid, SpainThis study explores the hydrogen generation potential via water-splitting reactions under UV-vis radiation by using a synergistic assembly of ZnO nanoparticles integrated with MoS<sub>2</sub>, single-walled carbon nanotubes (SWNTs), and crystalline silicon nanowires (SiNWs) to create the MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs nanocomposites. A comparative analysis of MoS<sub>2</sub> synthesized through chemical and physical exfoliation methods revealed that the chemically exfoliated MoS<sub>2</sub> exhibited superior performance, thereby being selected for all subsequent measurements. The nanostructured materials demonstrated exceptional surface characteristics, with specific surface areas exceeding 300 m<sup>2</sup> g<sup>−1</sup>. Notably, the hydrogen production rate achieved by a composite comprising 5% MoS<sub>2</sub>, 1.7% SiNWs, and 13.3% SWNTs at an 80% ZnONPs base was approximately 3909 µmol h<sup>−1</sup>g<sup>−1</sup> under 500 nm wavelength radiation, marking a significant improvement of over 40-fold relative to pristine ZnONPs. This enhancement underscores the remarkable photocatalytic efficiency of the composites, maintaining high hydrogen production rates above 1500 µmol h<sup>−1</sup>g<sup>−1</sup> even under radiation wavelengths exceeding 600 nm. Furthermore, the potential of these composites for energy storage and conversion applications, specifically within rechargeable lithium-ion batteries, was investigated. Composites, similar to those utilized for hydrogen production but excluding ZnONPs to address its limited theoretical capacity and electrical conductivity, were developed. The focus was on utilizing MoS<sub>2</sub>, SiNWs, and SWNTs as anode materials for Li-ion batteries. This strategic combination significantly improved the electronic conductivity and mechanical stability of the composite. Specifically, the composite with 56% MoS<sub>2</sub>, 24% SiNWs, and 20% SWNTs offered remarkable cyclic performance with high specific capacity values, achieving a complete stability of 1000 mA h g<sup>−1</sup> after 100 cycles at 1 A g<sup>−1</sup>. These results illuminate the dual utility of the composites, not only as innovative catalysts for hydrogen production but also as advanced materials for energy storage technologies, showcasing their potential in contributing to sustainable energy solutions.https://www.mdpi.com/2079-4991/14/23/1911Li-ion batteryhydrogenHERwater splittingphotocatalysis |
| spellingShingle | Abniel Machín María C. Cotto Francisco Márquez Jesús Díaz-Sánchez Celia Polop Carmen Morant Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites Nanomaterials Li-ion battery hydrogen HER water splitting photocatalysis |
| title | Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites |
| title_full | Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites |
| title_fullStr | Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites |
| title_full_unstemmed | Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites |
| title_short | Hydrogen Production and Li-Ion Battery Performance with MoS<sub>2</sub>-SiNWs-SWNTs@ZnONPs Nanocomposites |
| title_sort | hydrogen production and li ion battery performance with mos sub 2 sub sinws swnts znonps nanocomposites |
| topic | Li-ion battery hydrogen HER water splitting photocatalysis |
| url | https://www.mdpi.com/2079-4991/14/23/1911 |
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