Articles tagged with Electric Charge
A new technology combines femtosecond laser-designed lubricated slippery surfaces with electrostatic interactions to manipulate droplets. This allows for diverse working conditions and functions, including driving droplets on inclined surfaces, manipulating various liquids, and sorting particles.
Researchers at Tohoku University have unveiled a groundbreaking discovery of a one-dimensional topological insulator (TI), a unique state of matter that differs from conventional metals, insulators, and semiconductors. This breakthrough has significant implications for the development of qubits and highly efficient solar cells.
Researchers at Pohang University of Science & Technology developed a hybrid porous structure using polyvinyl alcohol, enabling uniform lithium electrodeposition. The new design facilitated the transport of lithium ions, reducing 'dead Li' areas and internal short circuits, resulting in high stability after 200 charge-discharge cycles.
Dr. Ifana Mahbub and her team are developing far-field wireless power transfer technology to enable drones to recharge without landing. The technology uses phased-array antennas to steer electromagnetic waves along a targeted path, minimizing signal loss.
Researchers aim to create polymers that can form the basis of effective sensors for applications in physiological, environmental, and Internet of Things monitoring. The goal is to increase energy efficiency and broaden material choices, enabling devices to operate at low voltage and interact with ions and transport ionic charges.
Researchers have developed an oblong-shaped ultrasound transmitter and receiver to improve energy harvesting from ultrasound beams, increasing efficiency by up to 50% compared to conventional systems. The new technology has been tested in various conditions, including water and tissue, with promising results.
Researchers have developed a new method to study slow electrons in solids, allowing for the deciphering of previously inaccessible information. By combining data from fast and slow electrons, scientists can now investigate how electrons release energy in their interaction with materials, crucial for applications such as cancer therapy ...
Researchers identified three types of behaviour around refuelling, including the event-triggered model, which is best for optimum electric vehicle usage. The study suggests that a change in mindset can reduce range anxiety and encourage more people to opt for EVs.
Researchers propose a new strategy to further enhance the performance of gas sensors using single-atom catalysts. The review discusses the application, structure, and principles of semiconductor-based gas sensors, as well as the mechanisms through which single-atom catalysts improve gas sensitivity.
A Rutgers study reveals that price is the biggest barrier to a vibrant second-hand EV market, with lower-income buyers often priced out of the market. The study suggests that increasing charging station availability and expanding subsidies could promote greater used EV uptake across income groups.
Researchers visualize chiral interface state at atomic scale for the first time, allowing on-demand creation of conducting channels. The technique has promise for building tunable networks of electron channels and advancing quantum computing.
Researchers at Oxford University discovered that similarly charged particles in solution can attract each other at large separations, depending on the solvent. This effect has significant implications for processes such as self-assembly and phase separation.
A groundbreaking technology recognizes human emotions in real time, combining verbal and non-verbal expression data for accurate emotional information extraction. The system features a personalized skin-integrated facial interface that enables self-powered, flexible, and transparent emotion recognition.
Researchers at UNIST have introduced non-solvating electrolytes to significantly improve the performance and lifespan of organic electrode-based batteries. The study achieved remarkable improvements in capacity retention and rate performance, with over 91% capacity retention after 1000 cycles.
Researchers found that electrostatic charges, structural features of carbon molecules, and surrounding metal nutrients play major roles in soil's ability to trap carbon. The study aims to help predict which soil chemistries are most favorable for trapping carbon.
Researchers at Ritsumeikan University enhance solid-state phosphorescence in organoplatinum(II) complexes by 75 times through anion binding and ion-pairing with countercations. The strategy isolates π-electronic molecules, improving luminescent properties and extending emission lifetime.
Researchers at GIST developed high-performance OECT devices based on poly(diketopyrrolopyrrole) (PDPP)-type polymers, achieving high charge carrier mobility and volumetric capacitance values. The optimized material exhibited a figure-of-merit value of over 800 F V^-1 cm^-1 s^-1.
Researchers have developed a new solid state battery design that can be charged and discharged over 6,000 times, with the ability to recharge in just 10 minutes. The breakthrough uses micron-sized silicon particles to constrict the lithiation reaction and facilitate homogeneous plating of lithium metal.
ICFO researchers observed a light-induced increase and control of conductivity in graphite by manipulating its many-body state, showing signatures of superconductivity. The study uses attosecond soft-X-ray pulses to probe electronic dynamics, providing new insights into material properties and quantum states.
Researchers from the University of Tokyo have developed a new way to charge quantum batteries using optical apparatuses and the phenomenon of indefinite causal order. This approach enables significant gains in energy storage and thermal efficiency, even with lower power chargers.
Yu Yang's NSF-funded research aims to reduce vehicle emissions and promote the use of electric bikes and scooters by developing socially informed traffic signal control systems. The project involves a three-pronged method that uses low-cost mobile air-quality sensing, spatial-temporal graph diffusion learning, and reinforcement learnin...
A new polymer binder is introduced to address durability issues in dual-ion batteries. The binder features azide and acrylate groups, which enhance the structural integrity of graphite during charge and discharge cycles. Dual-ion batteries equipped with this binder demonstrate exceptional performance, even after 3,500 recharge cycles.
A novel strategy utilizing phosphorus nanolayers mitigates electrode-level heterogeneity in fast-charging lithium-ion batteries. The graphite-phosphorus composite exhibits consistent cycle retention, high Coulombic efficiency, and improved lithiation uniformity.
Researchers at Tokyo University of Science have discovered a method to generate molecular ions from an ionic crystal by bombarding it with positrons. This breakthrough could lead to new applications in materials science, cancer therapy, and quantum computing.
Researchers at Caltech have detected magnetically bound excitons in an antiferromagnetic Mott insulator, a first in real-time experiments. This finding has implications for the development of new exciton-related technologies that harness both magnetic and optical properties.
A University of Texas at Dallas researcher aims to accelerate electric vehicle charging times by modifying lithium-ion battery structure to reduce charging time from hours to minutes. The goal is to increase adoption of electric vehicles and reduce carbon dioxide emissions and greenhouse gases.
Researchers developed a novel solid-state mechanochemical reaction to synthesize FCMs from PTFE and graphite, producing materials with enhanced storage capacity and electrochemical stability. The new method bypasses toxic reagents and offers a safer alternative for practical applications.
A new device design inspires improved integrated circuit designs by visualizing electric current flow lines around sharp bends. The research enables better understanding of heat generation in electronic devices, leading to more efficient circuit creation and reduced risk of overheating.
Researchers at Chinese Academy of Sciences Headquarters have developed flexible solar cells with efficiencies comparable to conventional solar cells. They achieved significant power conversion efficiency gains by optimizing the material composition and guest component location in ternary organic solar cells.
A ferrocene-based capsule with unusual charge-transfer interactions has been synthesized, allowing for reversible encapsulation and release of guest molecules. The capsule can bind to a variety of organic and inorganic dyes and electron-accepting molecules, demonstrating its potential applications in medicine, biotechnology, and chemic...
Scientists have successfully measured the speed of molecular charge migration in a carbon-chain molecule, revealing a movement of several angstroms per femtosecond. The study used a two-color high harmonic spectroscopy scheme with machine learning reconstruction to achieve a temporal resolution of 50 as.
A new study led by Dr. Xuekun Lu has found a way to prevent lithium plating in electric vehicle batteries, which could lead to faster charging times and improve the battery's energy density. The research also reveals that refining the microstructure of the graphite electrode can minimize the risk of lithium plating.
A recent study by Queen Mary University of London reveals a range of fundamental physical constants that can vary, allowing for the viscosity needed for life processes to occur within and between living cells. This discovery sheds light on the origin of these constants and their impact on life as we know it.
Researchers at Tohoku University found that the geomagnetic field plays a crucial role in protecting the Earth's lower atmosphere from harmful effects of electron precipitation. The study reveals that the mirror force caused by the magnetic field deflects relativistic electrons upwards, reducing their impact on the ionosphere.
Researchers at the University of Missouri have developed a new type of nanoclay material that can be customized to perform specific tasks. This breakthrough could lead to advances in fields such as medical science, environmental science, and more.
Researchers have demonstrated a method to power water remediation using renewable energy sources, including solar power. Through electrochemical separation and redox reactions, they successfully removed arsenate from wastewater.
Scientists have developed a new supercapacitor with a carbon nano-onion core structure, achieving the highest level of energy storage ever recorded. This breakthrough could lead to significantly lighter and faster-charging energy storage devices.
Researchers at the University of Cambridge discovered that ions conduct faster than electrons in conjugated polymer electrodes, challenging conventional wisdom. This finding provides valuable insights into the factors influencing charging speed and offers opportunities to engineer materials with improved performance.
Scientists at Argonne National Laboratory discovered a new fluoride electrolyte that can protect lithium metal batteries against performance decline. The electrolyte maintains a robust protective layer on the anode surface for hundreds of cycles, enabling the battery to last longer.
Researchers at the Beckman Institute developed a new purification system that uses an electrified version of dialysis to separate salt and other unnecessary particles from wastewater. The method saves money and saps 90% less energy than its counterparts, making it a promising solution for global water scarcity.
Researchers developed a new anode material that increases lithium-ion battery storage capacity by 1.5 times, allowing for fast charging in as little as six minutes. The innovation uses electron spin to enhance storage capacity and ferromagnetic properties.
A new study estimates that the overall benefits of switching ride-hailing vehicles from gasoline to electric would be very modest, with a 3% gain per trip. The study found that traffic-related factors, such as congestion and crash risk, dominate societal costs, outweighing emissions reductions.
The MOLLER experiment has been granted Critical Decision-3A, allowing it to begin procurement of key components and make a precise measurement of the electron's weak charge, which will compare to the Standard Model's prediction.
A team of engineers at UMass Amherst has created a device that can continuously harvest electricity from humidity in the air using nanopores in materials. The 'generic Air-gen effect' allows nearly any material to be engineered for this purpose, offering a cost-effective and scalable solution.
Researchers have developed a solvent-free process to manufacture lithium-ion battery electrodes that are greener and cheaper than traditional methods. The new process produces electrodes that can charge faster, with a capacity of 78% in just 20 minutes.
A new fluorine-containing electrolyte has been developed to perform well in sub-zero temperatures, addressing the issue of cold weather affecting electric vehicle battery effectiveness. The research demonstrates how to tailor the atomic structure of electrolytes for low-temperature applications.
Research team settles decade-long debate on Ta2NiSe5's microscopic origin of symmetry breaking; structural instability hinders electronic superfluidity. Advanced experiments and calculations confirm crystal structure changes as driving force behind phase transition.
Researchers have developed a novel support material called BaAl2O4-xHy that enhances the catalytic activity of cobalt nanoparticles, allowing for record-breaking ammonia production at low temperatures. The catalyst demonstrates improved activation energy and high reusability.
Researchers from The University of Tokyo have created a machine that can recharge N95 respirators and surgical masks to 97% efficiency. By applying a uniform voltage distribution, the device restores the mask's electrostatic charge, increasing its effectiveness.
Researchers have developed a new type of organic battery that uses redox-organic electrode materials (OEMs) synthesized from natural materials. The battery features high capacity, scalability, and recyclability, making it a promising sustainable alternative to traditional lithium-ion batteries.
Researchers from HKUST and CityU developed a metasurface to generate time-varying OAM beams with a time-dependent phase profile. This allows for a higher-order twist in the envelope wavefront structure, increasing capacity for applications such as dynamic particle trapping and information encryption.
Researchers at Colorado State University propose using ultrathin films of molybdenum disulfide to improve solar cell efficiency. The material displays unprecedented charge carrier properties that could lead to drastic improvements in solar technologies.
Researchers at Kyoto University have successfully created silicon-based photovoltaics at room temperature using a hybrid PEDOT:PSS/silicon heterojunction. This breakthrough technology offers improved production speed and cost, with power generation efficiency above 10%. The new process has the potential to facilitate large-scale diffus...
A team led by Professor Yoshihiro Yamazaki from Kyushu University discovered the chemical innerworkings of a perovskite-based electrolyte developed for solid oxide fuel cells. By combining synchrotron radiation analysis, large-scale simulations, machine learning, and thermogravimetric analysis, they found that protons are introduced at...
Researchers have developed a practical method to generate green hydrogen using natural enzymes, which contain only earth-abundant elements. The new approach enables the efficient production of green hydrogen from sunlight, making it a promising solution for decarbonizing transportation and industries.
Researchers have developed a functional polymeric binder for stable, high-capacity anode material that can increase the current EV range at least 10-fold. The new polymer utilizes hydrogen bonding and Coulombic forces to control volumetric expansion, resulting in a thick high-capacity electrode and maximum energy density.
Researchers from USTC introduced a 'bubble diode' concept to address the issue of bubble precipitation in fast-charging Zn-air batteries. The design guides the development of bubble-free electrodes, leading to improved energy density, safety and environmental friendliness.
Researchers have developed a new simulation method to study polarons in 2D materials, which could lead to breakthroughs in OLED TVs and hydrogen fuel production. The study uses quantum mechanical theory and computation to determine the fundamental properties of polarons in 2D materials.
Researchers found that strategically placing charging stations, especially at workplaces and in delayed home settings, can reduce peak electricity demand, store solar energy, and conveniently meet drivers' needs. This approach could help minimize the strain on the grid and avoid costly new power plants.
Researchers at NIMS found that a lithium negative electrode degrades rapidly during charge/discharge cycles, causing overpotential and short cycle life. Using a lightweight protective layer, they extended the battery's cycle life without compromising its high energy density.