Articles tagged with Energy
A team of researchers from Central South University proposes a novel strategy to enhance breakdown strength and electric polarization in dielectric materials. By modulating filler orientation and polymer crystallization, they achieve ultrahigh energy density and improved voltage endurance.
The study found that Ni particle size influences CO2 activation pathways, with smaller particles favoring direct dissociation and larger particles favoring hydrogenation dissociation. Larger particles also show superior resistance to carbon formation.
Professors Philip LeDuc and Burak Ozdoganlar have developed a novel 3D ice printing technique that enables the creation of micro-scale structures with tailored geometries. Their method uses water as an ink substitute, allowing for the deposition of precise internal voids and channels.
Researchers developed a rapid Joule-heating synthesis method to improve the efficiency and selectivity of carbon dioxide reduction. The method ensures uniform dispersion of metal nanoparticles on carbon supports, enhancing electron conductivity and catalytic performance.
Scientists have developed a machine learning program that can identify blobs of plasma in outer space known as plasmoids. The program will analyze data from NASA's Magnetospheric Multiscale (MMS) mission to better understand magnetic reconnection and its effects on the electrical grid.
Researchers used statistical physics and network science to analyze European electricity price data, revealing that factors beyond Russian gas were at play during the 2021-2022 energy crisis. The study found strong correlations between certain countries' markets and unexpected impacts on electricity prices.
Researchers proposed an active equalization strategy to minimize cell inconsistencies in series-connected lithium-ion battery packs. The strategy utilizes a dual threshold trigger mechanism and energy transfer path optimization, significantly reducing cell inconsistencies and enhancing pack performance.
Researchers have developed a novel perovskite-based anode material with mixed hole–proton conduction, achieving high efficiency at low and medium temperatures. The breakthrough could pave the way for important technological advancements in energy technologies.
Researchers developed PEDOT:F ionomer to improve PEMWE performance. The hybrid conductor facilitates water adsorption and reduces energy barriers, leading to enhanced oxygen evolution reaction performance. This innovation promotes smoother particle migration during electrolysis.
Researchers developed pyrochlore La2Zr2–xNixO7 anodes to improve the efficiency of ammonia-based solid oxide fuel cells. These materials exhibit excellent electrochemical performance and durability, enabling high power density operation at intermediate temperatures.
A team of researchers at Tsinghua University Press has developed a new flexible battery for wearable devices that is safer, cheaper, and more efficient. The battery uses ammonium ions as charge carriers and incorporates hydrogel to achieve self-healing properties.
A new metal-nitrogen-carbon catalyst has been developed for use in zinc-air batteries, outperforming noble metal catalysts and improving the efficiency and practicality of ZAB technology. The team's rechargeable battery achieved a specific capacity of 846.8 mAh·g Zn and an impressive power density of 135 mW·cm−2 in liquid electrolyte.
A new type of reverse electrodialysis heat engine (REDHE) has been developed to convert low-grade heat into electricity. The REDHE incorporates helium-gap diffusion distillation as the thermal separation unit and achieves high energy conversion efficiency when optimized parameters are used.
Researchers at KIT have developed a novel polymer-based metamaterial that combines properties of light diffusion, self-cleaning, and radiative cooling while maintaining transparency. The material can optimize indoor lighting, provide passive cooling, and reduce reliance on air conditioning.
The team fabricated a tandem solar cell with a transparent conducting electrode, achieving high efficiency of greater than 17 percent and exceeding 20 percent when assembled. The study demonstrates antimony selenide's potential as a bottom cell material for tandem solar cells.
Microstructure simulations reveal strong influence of elastic deformation on charging behavior of layered oxides used as cathode of sodium-ion batteries. The study found that fast charging creates mechanical stress that may damage material permanently, leading to degradation mechanisms and reduced capacity.
Researchers investigate SEI stability in silicon particles to improve lithium-ion battery cycling performance. They found that using spherical silicons with smaller particle sizes and artificially constructing SEI with a uniform structure can enhance stability.
Scientists at ETH Zurich have engineered a thermal trap that can deliver heat at temperatures of over 1000 degrees Celsius using solar radiation. This technology has the potential to decarbonize energy-intensive industries on a large scale, making it an important step towards reducing greenhouse gas emissions.
Researchers at ETH Zurich have engineered a thermal trap to deliver heat at high temperatures needed for industrial processes, overcoming the challenge of fossil fuels. The device, which uses solar radiation, absorbs sunlight and converts it into heat, minimizing radiative heat losses and increasing efficiency.
Researchers developed a poly ionic liquid called PSFSIPPyri to enhance perovskite solar cell performance. The addition improves stability, preventing halide ion migration and facilitating organic and halide ion fixation.
A new device uses small amounts of light to process information, offering significant energy improvements over conventional optical switches. This technology could enable quantum communications, providing a promising alternative for data security against rising cyberattacks.
Researchers at RIKEN have developed a new catalyst that reduces the amount of iridium required for hydrogen production, achieving 82% efficiency and sustaining production for over 4 months. The breakthrough could revolutionize ecologically friendly hydrogen production and pave the way for a carbon-neutral energy economy.
Researchers developed a new theory that bridges biological vessels and artificial materials, applicable to various functional materials. The Universal Murray's Law can optimize fluid transport in synthetic structures, boosting efficiency in energy storage, catalysis, and sensing.
Researchers developed aerogel-based composite phase change materials (PCMs) to address thermal management, solar-thermal conversion, and microwave absorption issues in electronic devices. The composites showed over 90% absorption of broadband light and converted solar energy into thermal energy with a greater than 95% efficiency.
The GREENSKY model significantly enhances the energy efficiency of Unmanned Aerial Vehicles (UAVs) in cellular networks by optimizing charging behavior and routing processes. This results in a 9.1% reduction in energy consumption compared to traditional heuristic solutions.
Researchers at University of Cambridge found that disordered carbon electrodes in supercapacitors store more energy than ordered ones. The study used nuclear magnetic resonance spectroscopy to analyze electrode materials and found a correlation between disorder and energy capacity.
Researchers have discovered life-threatening quantities of lead pollution from improperly managed battery waste in off-grid solar technologies in Malawi. The study found that common informal recycling activities for lead-acid batteries release toxic lead pollution, equivalent to more than 100 lethal oral doses per single battery.
Researchers investigated the effect of design parameters on system performance enhancement in spectral beam splitting hybrid PV/T systems using water-based SiO2 nanofluid. They found that optimal SiO2 nanofluid concentration balances efficiency and cost-effectiveness, with a maximum efficiency of 51.93% at a focusing ratio of 3.
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.
A recent analysis by DOE/Argonne National Laboratory and NREL suggests that renewable energy could reduce carbon footprint at the South Pole. The study found that using solar energy during the austral summer could save approximately $57 million over 15 years.
A study enhances HVAC fault detection accuracy using a modified transformer model and adapter-based transfer learning, enabling efficient generalizability across various systems. This approach promises improved energy savings and system reliability in building energy management.
Researchers developed an all-in-one adhesive electrode that simplifies fabrication and overcomes interfacial displacement issues in flexible supercapacitors. The new material enables faster charging, discharging, and improved mechanical endurance.
Researchers at Tsinghua University have developed a new fabrication method for flexible solar cells, increasing their power conversion efficiency by up to 25.09%. The new technique uses a chemical bath deposition method that is compatible with acid-sensitive substrates, addressing durability concerns and enabling scalable production.
The University of California, Riverside's new QuVET center aims to harness quantum mechanics in energy and time, with a focus on vibronic effects in molecular systems. The collaboration between UCR and top universities will explore ways to enhance energy transport efficiency and develop new technologies.
Researchers at Brookhaven National Laboratory and University of North Carolina Chapel Hill develop a room-temperature conversion reaction strategy to convert carbon dioxide into methanol. The process employs a recyclable organic reagent and sunlight, producing an easily storable and transportable liquid fuel.
Scientists will study neutrinos to solve big questions about the universe. UTA is building portions of two detectors in South Dakota and training students to help with the project.
Researchers created high-efficiency Se-containing electrocatalysts for overall water splitting using 2D layered metal-organic frameworks. The unique structure and synergistic effect between components significantly improve the electrochemical performance.
Researchers at MIT and Commonwealth Fusion Systems confirm their high-temperature superconducting magnet design meets the criteria for a compact fusion power plant. The successful test marks a significant milestone in fusion research, with the potential to usher in an era of virtually limitless power production.
Researchers developed a model to predict household energy costs with over 74% accuracy by analyzing passive design characteristics from Google Street View images. The model can help identify neighborhoods vulnerable to energy burden and pave the way for smart, sustainable cities.
Researchers explore metal organic frameworks-based cathode materials to overcome sulfur's limitations in lithium-sulfur batteries. Advanced materials could restrain dissolution and diffusion of polysulfide, improving conductivity and structural stability.
Researchers discovered a propeller-shaped isomer, 3PNIN, that improves the functionality of cathode interfacial materials in organic solar cells. The molecule enhances electron mobility and conductivity, leading to higher power conversion efficiency rates.
MIT researchers found that applying a small voltage to a catalyst can significantly increase the rates of non-redox chemical reactions used in petrochemical processing and pharmaceutical manufacture. This discovery has the potential to transform our understanding of catalysis and design new reactors to take advantage of this phenomenon.
Scientists at University of Utah and University of Massachusetts Amherst uncover the physics behind dopant-polymer interactions that explain inconsistent conductivity issues in organic materials. The discovery reveals that a critical mass of electrons triggers collective screening, allowing rest of electrons to flow unimpeded.
The book offers hope and impetus in the right direction by demonstrating that human courage and reason can help overcome paralyzing fear. It highlights the need for self-reliance, revitalization of human values, personal and local action, and a global perspective to steer humanity towards a modern world.
JET's final deuterium-tritium experiments demonstrated high fusion power consistently produced for 5 seconds, setting a world-record of 69 megajoules using 0.2 milligrams of fuel. The facility has reliably created fusion plasmas with the same fuel mixture as commercial fusion energy powerplants.
Researchers at Stanford University have discovered that resting lithium metal batteries in the discharged state can restore capacity and boost overall performance. By reprogramming the battery management software, lost capacity can be recovered without additional cost or changes needed for equipment, materials, or production flow.
Researchers from PolyU develop a durable, highly selective and energy-efficient CO2 electroreduction system that converts CO2 into ethylene for industrial purposes. The APMA system achieves high specificity of 50% and operates for over 1,000 hours at an industrial-level current of 10A.
A Swiss-Polish team has found the answer to why previous attempts to use magnesium hydride for efficient hydrogen storage failed. The researchers developed a new model that predicts local, thermodynamically stable clusters are formed in magnesium during hydrogen injection, reducing hydrogen ion mobility.
Researchers at Stanford University have developed a new phase-change memory that could help computers process large amounts of data faster and more efficiently. The technology improves several metrics simultaneously, including speed, endurance, and stability, while operating below 1 volt.
Air pollution emissions have decreased substantially in the US over the last four decades, but racial and socioeconomic disparities remain. The study found that certain populations experienced relatively smaller reductions or even increases in air pollution emissions, highlighting the need for targeted policies to address inequities.
Scientists at Kyushu University use machine learning to identify promising green energy materials, accelerating the search for hydrogen fuel cell efficiency and expanding material discovery capabilities. Two new candidate materials with unique crystal structures have been successfully synthesized.
Researchers at MIT have mapped out the chemical reaction involved in proton-coupled electron transfers, a critical step in many energy technologies. They found that changes in pH affect the rate of proton motion and electron flow within the electrode.
Scientists created a new type of polyimide film that exhibits high photocurrent response and efficient charge separation. The study found that the conjugate size of aromatic unit has a significant impact on PEC performance.
Researchers have developed a new catalyst that exceeds 30% yield for the production of ethylene through oxidative coupling of methane, a more sustainable and economically viable method. The core-shell Li2CO3-coated mixed rare earth oxides catalyst enables sequential oxygen switching, replenishing its ability to provide oxygen for the r...
Researchers developed a multi-elemental alloy electrode composed of nine non-noble metals that performed sustainably over a decade when powered by solar energy. This innovation enables direct seawater electrolysis without using fresh water, promoting hydrogen production in regions with abundant renewable energy.
A new double main-injection (DMI) strategy has been proposed to regulate fuel stratification in Gasoline Compression Ignition (GCI) mode, improving fuel economy and reducing emissions. The study found that simultaneous main-injection and exhaust gas recirculation can achieve rapid fuel supply and control of combustion.
A recent study suggests that AI can provide real-time analysis of foods and support nutritionists in their work with patients. The study evaluates the consistency and accuracy of AI in providing energy and macronutrient information, showing promising results.
A new process developed by KIT researchers reduces steel production's greenhouse gas emissions by several hundred million tons per year. The technology, known as dry reforming, replaces coke with hydrogen-rich synthesis gas to support iron oxide reduction in blast furnaces.
The new platform, Arras Energy, simulates how all parts of an electric grid work together, making it easier to understand and apply the results. The tool can help utilities harden their distribution systems against extreme weather and integrate renewable energy sources.
Researchers at Tsinghua University Press have developed a non-precious metal electrocatalyst for water splitting, achieving stable oxygen evolution reactions (OER) and hydrogen evolution reactions (HER). The FeSnCo Sx Oy /NF catalyst shows promise in reducing carbon-based energy sources and producing more energy than gasoline.