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Vasily ARTEMOV
UltraConfined Water Battery
https://www.researchgate.net/profile/Vasily-Artemov
Vasily Artemov
Swiss Federal Institute of Technology in Lausanne
https://arxiv.org/pdf/2410.11983v1
Ultraconfined 1-nm water as nature-inspired electrolyte for blue batteries
Vasily Artemov
[ PDF ]
Abstract -- Artificial engineering often relies on scarce materials, possessing ecological, social, and political risks. In contrast, nature achieves advanced functionalities using only abundant elements and water. Despite this simple insight, incorporating nature-inspired devices made from readily available resources into industrial applications remains a formidable challenge. Here, we present a sustainable ’blue battery’—a water-based energy storage device that mimics natural processes and reduces dependence on scarce materials. This battery harnesses the distinctive electrical properties of water confined within nanometer-scale pores, enabling construction from abundant, non-toxic materials using scalable nanofabrication techniques. It operates without unwanted side reactions, maintains nearly 100% efficiency after 60,000 charge-discharge cycles, and supports a voltage window of up to 1.65 V while achieving competitive power and energy density. The core component, a van der Waals clay nanostructure, uses water as the sole electrolyte with enhanced activity due to interactions with its 2D surface. This water-driven technology offers a sustainable platform for energy systems, with potential applications from small-scale electronics to global energy infrastructure—even in extreme environments like Mars. Our work advances nature-inspired energy solutions, opening new possibilities for the sustainable engineering of blue devices.
https://arxiv.org/abs/2410.11983
Bulk electricity storage in 1-nm water channels
Vasily Artemov, et al.
[ PDF ]
Abstract -- Nanometer-scale solid-state confinement has been shown to change water's structure and dynamics, offering new horizons in energy storage. However, most current materials operate at the micrometer scale, missing the interfacial effects that occur at three orders of magnitude smaller dimensions. Here, we report a scalable energy storage device that uses ultraconfined water as its sole electrolyte, unlocking the advantages of nanoscale confinement. We use the polarizability and proton 'superconductivity' of water confined in few-molecular-diameters clay channels to build an all-water supercapacitor. The device fabricated from reconstructed clay, graphene, and water by a sustainable self-assembly process, operates at voltages up to 1.65 V, has competitive power and energy density, and maintains near 100% Coulombic efficiency over 60,000 charge-discharge cycles. These results demonstrate the application of unique properties of ultraconfined water for sustainable energy storage and provide a benchmark for a class of novel ultraconfined water energy systems, or 'blue devices'.
https://www.academia.edu/67180510/The_Electrodynamics_of_Water_and_Ice
The electrodynamics of water and ice
Vasily Artemov
[ PDF ]
Abstract -- Water is not only a substance, but also an exceptional media of electromagnetic waves propagating on scales from the molecular to the global. Chemical reactions in aqueous solutions, nerve pulse transmission, and global communication systems are only a few of the many fields, which are significantly determined by the electromagnetism of water and ice. The dielectric properties of water and ice are equally important for many aspects of physical chemistry, soft-matter physics, electrochemistry, atmospheric sciences, radiophysics, medicine, biophysics, and neurosciences. The electrodynamic properties of water are accounted for in acid–base reactions, solvation processes, electric double layers, and in systems where water plays a role of solvent or reference liquid. The dielectric properties of ice, liquid water, and water vapor are also crucial for location and navigation...
https://pubs.rsc.org/en/content/articlelanding/2019/cp/c9cp00257j
Physical Chemistry Chemical Physics 2019
DOI: 10.1039/C9CP00257J
A unified mechanism for ice and water electrical conductivity from direct current to terahertz
Vasily G. Artemov
Abstract -- Knowledge of the electrical properties of liquid and solid water is extremely important for a detailed understanding of their structures. Though the macroscopic parameters differ, ice and water still have much in common from the dielectric spectroscopy viewpoint and should thus be considered on the same footing for the study of their electrical properties. In this work, we treat the complete dielectric spectra of ice and water, covering fourteen orders in frequency magnitude. Introducing the notion of ‘excess proton gas’ we explain the similarities between ice and water, and derive a model which links together the infrared vibrations and the static conductivity and dielectric constant. This model provides a very good description of spectra up to 10 THz and reproduces well the temperature dependence of the dielectric constant for both ice and water. A new intermolecular polarization mechanism suitable for ice and water provides good insights for the understanding of their electrical properties.
https://www.researchgate.net/publication/372418015_Confinement-Controlled_Water_Engenders_Unusually_High_Electrochemical_Capacitance
Confinement-Controlled Water Engenders Unusually High Electrochemical Capacitance
Svetlana Melnik A. , et al.
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