A nanogenerator based on metal nanoparticles and magnetic ionic gradients
Abstract Developing a new technique/method and/or mechanism for separating ionic charges is critical to the fabrication of a high-performance nanogenerator. Inspired by charge migration and/or separation under an electric bias, herein, we demonstrate a reverse process in which the ionic charge gradi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-03-01
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| Series: | NPG Asia Materials |
| Online Access: | https://doi.org/10.1038/s41427-023-00468-x |
| _version_ | 1797274163388350464 |
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| author | Jingyu Wang Tao Xiao Jiahui Guo Xing Zhao Yong Yan |
| author_facet | Jingyu Wang Tao Xiao Jiahui Guo Xing Zhao Yong Yan |
| author_sort | Jingyu Wang |
| collection | DOAJ |
| description | Abstract Developing a new technique/method and/or mechanism for separating ionic charges is critical to the fabrication of a high-performance nanogenerator. Inspired by charge migration and/or separation under an electric bias, herein, we demonstrate a reverse process in which the ionic charge gradients within a metal nanoparticle film are used to output electrical energy. The metal nanoparticle core is ‘jammed’ within the film, while the counterion itself is mobile and magnetic; therefore, ionic gradients are created through an external magnetic field. The distribution gradient of magnetic counterions is subsequently transformed into an electric potential within the metal nanoparticle film and into an electron flow in the external circuit. The performance of the nanoparticle nanogenerator is also optimized, and the highest output open-circuit voltage reaches 0.55 V. Finally, we develop a continuum charge-transport model combining Poisson and Nernst‒Planck diffusion equations to simulate the production of electrical energy within metal nanoparticle films. |
| first_indexed | 2024-03-07T14:54:27Z |
| format | Article |
| id | doaj.art-5d59818129dd466a8bc641ff7b6a86db |
| institution | Directory Open Access Journal |
| issn | 1884-4057 |
| language | English |
| last_indexed | 2024-03-07T14:54:27Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | NPG Asia Materials |
| spelling | doaj.art-5d59818129dd466a8bc641ff7b6a86db2024-03-05T19:29:15ZengNature PortfolioNPG Asia Materials1884-40572023-03-011511710.1038/s41427-023-00468-xA nanogenerator based on metal nanoparticles and magnetic ionic gradientsJingyu Wang0Tao Xiao1Jiahui Guo2Xing Zhao3Yong Yan4CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyCAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyCAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyCAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyCAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and TechnologyAbstract Developing a new technique/method and/or mechanism for separating ionic charges is critical to the fabrication of a high-performance nanogenerator. Inspired by charge migration and/or separation under an electric bias, herein, we demonstrate a reverse process in which the ionic charge gradients within a metal nanoparticle film are used to output electrical energy. The metal nanoparticle core is ‘jammed’ within the film, while the counterion itself is mobile and magnetic; therefore, ionic gradients are created through an external magnetic field. The distribution gradient of magnetic counterions is subsequently transformed into an electric potential within the metal nanoparticle film and into an electron flow in the external circuit. The performance of the nanoparticle nanogenerator is also optimized, and the highest output open-circuit voltage reaches 0.55 V. Finally, we develop a continuum charge-transport model combining Poisson and Nernst‒Planck diffusion equations to simulate the production of electrical energy within metal nanoparticle films.https://doi.org/10.1038/s41427-023-00468-x |
| spellingShingle | Jingyu Wang Tao Xiao Jiahui Guo Xing Zhao Yong Yan A nanogenerator based on metal nanoparticles and magnetic ionic gradients NPG Asia Materials |
| title | A nanogenerator based on metal nanoparticles and magnetic ionic gradients |
| title_full | A nanogenerator based on metal nanoparticles and magnetic ionic gradients |
| title_fullStr | A nanogenerator based on metal nanoparticles and magnetic ionic gradients |
| title_full_unstemmed | A nanogenerator based on metal nanoparticles and magnetic ionic gradients |
| title_short | A nanogenerator based on metal nanoparticles and magnetic ionic gradients |
| title_sort | nanogenerator based on metal nanoparticles and magnetic ionic gradients |
| url | https://doi.org/10.1038/s41427-023-00468-x |
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