The instability of the ocean waves, such as intermittence, randomness, and irregularity, greatly affects the application of a triboelectric nanogenerator (TENG) in its aspects and leads to the irregularity and uncontrollability of its output performance. Hence, the energy storage TENG (ES-TENG) based on the ratchet mechanism is proposed in this work. The ES-TENG uses the ratchet mechanism to store the wave energy in the clockwork spring and then releases it in a centralized way to convert the wave energy into electric energy. When the ES-TENG adopts this method, the change of external excitation does not affect its output performance. Simultaneously, the shell of the ES-TENG is duck-shaped, which can better adapt to the wave environment. The peak power, open-circuit voltage, and short-circuit current of the ES-TENG are 6.2 mW, 495 V, and 19 μA, respectively. In the simulated wave experiment, the ES-TENG can successfully drive a temperature sensor. In summary, this work shows an economic, environmental friendly TENG that can adapt to the wave motion, and its output performance is not affected by wave instability, which has an important guiding significance for the further development and utilization of TENG in ocean energy.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9835160 | PMC |
| http://dx.doi.org/10.1021/acsomega.2c06783 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Kinetics and Optimality of Influenza A Virus Locomotion.
Phys Rev Lett
December 2024
Chan Zuckerberg Biohub-San Francisco, 499 Illinois Street, San Francisco, California 94158, USA.
Influenza A viruses (IAVs) must navigate through a dense extracellular mucus to infect airway epithelial cells. The mucous layer, composed of glycosylated biopolymers (mucins), presents sialic acid that binds to ligands on the viral envelope and can be irreversibly cleaved by viral enzymes. It was recently discovered that filamentous IAVs exhibit directed persistent motion along their long axis on sialic acid-coated surfaces.
View Article and Find Full Text PDFHierarchically-structured ratchet skimmer with superhydrophilicity for continuous recovery of high-viscosity oil.
Mar Pollut Bull
December 2024
Extreme Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Korea Institute of Science and Technology - Sungkyunkwan University Carbon-Neutral Research Center, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea. Electronic address:
Oil spill accidents have series environmental and economic impacts, increasing the demand for efficient technologies to recover oil from contaminated waters. In this study, a hierarchically structured ratchet surface with superhydrophilicity was presented as a novel oil skimming mechanism for the recovery of high-viscosity oil, particularly low-sulfur fuel oil (LSFO), which has recently been used as marine fuel in open water environments. The interaction between the superhydrophilic ratchet and oil provides favorable conditions for oil retention at the water surface.
View Article and Find Full Text PDFRapid water drainage on human eyelashes of a hydrophobic fiber array.
Sci Adv
December 2024
CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Numerous organisms exploit asymmetrical capillary forces generated by unique fiber or asymmetrical tapered structures to rapidly eliminate undesired liquid for survival in moist or rainy habitats. Human eyelashes, the primary protector of eyes, use a yet-to-be-fully-understood mechanism to efficiently transfer incoming liquid for vision safeguarding. Here, we elucidate that human eyelashes featuring a hydrophobic curved flexible fiber array with surface micro-ratchet and macro-curvature approximating the is adept at directionally and rapidly expelling incoming liquid to maintain clear vision.
View Article and Find Full Text PDFHAMpering infection: Helicase ratcheting emerges as a phage-sensing mechanism.
Cell Host Microbe
December 2024
National Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Hubei Hongshan Laboratory, Huazhong Agricultural University, 430070 Wuhan, China. Electronic address:
The sensing of pathogens is the first step for any immune response. A recent paper in Cell reveals that the bacterial Hachiman anti-phage defense system deploys a helicase subunit to sense phage invasion via 3' DNA recognition and subsequent domain rotation to enable nuclease activation.
View Article and Find Full Text PDFA Chemically Powered Rotary Molecular Motor Based on Reversible Oxazepine Formation.
Angew Chem Int Ed Engl
November 2024
College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China.
While biological machines are powered mainly by chemical transformations, chemically driven artificial rotary motor systems are very limited. Here, we report an aniline-phenol-based rotary molecular motor that operates via an information ratchet mechanism. The 360° directional rotation about a single covalent bond can be chemically driven by reversible oxazepine formation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!