Articles tagged with Electrochemical Energy
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.
Rice University engineers have created a device that converts sunlight into hydrogen with unprecedented efficiency, opening up new possibilities for clean energy and sustainable fuel production. The innovative technology uses halide perovskite semiconductors and electrocatalysts in a single, durable device.
Carbon-based materials have been found to be more reactive with alcohol-functionalized oxygens, challenging traditional catalysis chemistry. The researchers' study showed a correlation between the amount and type of oxygen present and performance, including the long-range effects of aromatic rings.
The team created a thermocell using a hydrogel that reacted to temperature changes, converting latent heat into electricity. This breakthrough supports the idea that various materials can be used for thermoelectric conversion, potentially reducing reliance on other energy sources and improving cooling systems.
A new flow battery design has achieved a record-breaking 60% increase in peak power using a dissolved simple sugar called β-cyclodextrin, which boosts battery capacity and longevity. The battery maintained its energy storage and release capabilities for over a year without significant loss of activity.
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 team of researchers from China and the UK has developed new ways to optimise the production of solar fuels by creating novel photocatalysts. These photocatalysts, such as titanium dioxide with boron nitride, can absorb more wavelengths of light and produce more hydrogen compared to traditional methods.
Researchers have developed a method to encapsulate polyoxometalate molecules within carbon nanotubes, enhancing the electrochemical energy storage of materials. The study found that these hybrids exhibit improved electrochemical properties due to reduced aggregation and increased electron transfer.
Researchers at Leibniz-HKI have confirmed experimentally that bacteria use electrons from hydrogen to produce organic compounds. This breakthrough could make microbial electrosynthesis (MES) a commercially viable technology, producing ethanol and other fuels while storing excess electricity. The study optimized the process for high yie...
Researchers investigate Metal-Organic Frameworks (MOFs) and MXene, a two-dimensional material, for enhanced electrochemical properties. The hybrid materials show improved performance in various energy storage and conversion applications.
Researchers are working on a new concept for lithium-air batteries that could lead to significant improvements in energy storage capacity. A collaborative project in Germany aims to test new materials and components to enhance the stability of these battery cells. The goal is to overcome technical challenges such as unstable electrolyt...
Chung-Ang University researchers develop a novel flexible supercapacitor platform with vertically integrated gold electrodes in a single sheet of paper. The design shows low electrical resistance, high foldability, and good mechanical strength, making it suitable for wearable devices.
Researchers designed a heterostructured interface for Zn batteries with ultrahigh areal capacity and energy density. The new design stabilizes electrodeposition and dissolution of Zn at high capacities, enabling excellent cycling stability.
Carolina researchers have engineered silicon nanowires that can convert sunlight into electricity, splitting water into oxygen and hydrogen gas. This innovative design enables the production of a greener alternative to fossil fuels, making it more competitive with traditional energy sources.
Researchers at Berkeley Lab have developed a new technique that captures real-time movies of copper nanoparticles as they convert carbon dioxide into renewable fuels and chemicals. The study reveals that metallic copper nanograins serve as active sites for CO2 reduction, paving the way for advanced solar fuel technology.
Bacteria can survive antibiotics without acquiring new genes or mutating existing ones by maintaining high electrochemical energies. These high-energy cells exhibit a wide range of energy levels despite being in a state of arrested growth, enabling them to adapt and spread rapidly.
Assistant Professor Mohammad Asadi has published a paper in Science describing the chemistry behind his novel lithium-air battery design, which could store one kilowatt-hour per kilogram or higher. This breakthrough technology has the potential to revolutionize heavy-duty vehicles such as airplanes, trains, and submarines.
Researchers from City University of Hong Kong have developed a novel, tiny device to observe liquid-phase electrochemical reactions in energy devices at nanoscale. The device enables real-time and high-resolution visualization of complex electrochemical processes.
A new, low-cost battery made with sodium-sulphur holds four times the energy capacity of lithium-ion batteries and is cheaper to produce. This breakthrough has the potential to dramatically reduce costs and provide a high-performing solution for large renewable energy storage systems.
Researchers at Brookhaven Lab and PNNL develop a new method to study the solid-electrolyte interphase in lithium metal batteries, revealing its convoluted chemistry. The team's findings provide a foundation for building more effective battery cells with higher energy density.
This study employs machine learning to analyze existing experimental results and predict the device performance of metal halide perovskite solar cells. The authors applied shapley additive explanations (SHAP) analysis to understand the correlations between fabrication processes, composition, and device performance.
Researchers at Johannes Gutenberg University Mainz develop an electrochemical technique to recover halogens without burning carbon structures, reducing emissions and stabilizing energy supplies. The project aims to contribute to a circular economy of halogens and reduce dependence on fossil reserves.
Researchers have discovered an innovative way to enhance the energy efficiency of metal-carbon dioxide batteries by introducing unconventional phase nanomaterials as catalysts. The novel design boosts battery energy efficiency up to 83.8%, contributing to carbon-neutral goals.
Researchers discovered that dormant bacterial spores can evaluate their environment without waking up, using stored electrochemical energy to determine favorable conditions. They found that spores release their energy to perform a computation about their surroundings, similar to how neurons operate in the brain.
Researchers in China designed a strategy to improve zinc-air battery performance by combining two transition metals, atomic iron and nickel, which deliver high electrocatalytic activity. The resulting rechargeable batteries achieve high peak power density, working rates, and long lifespan.
Researchers have discovered that zinc ions enhance the electrochromic properties of titanium dioxide nanocrystals, resulting in fast switching, high contrast, and high stability. This breakthrough has significant implications for the development of cost-effective and rapid electrochromic devices.
Researchers develop TiO2-δNδ nanowire arrays to enhance N2 reduction to ammonia, achieving high yields and efficiency. The study demonstrates synergistic effects of oxygen vacancies and titanium ions in improving electrocatalytic performance.
Researchers from Tokyo University of Science create a metal–organic framework-based magnesium ion conductor showing superionic conductivity at room temperature, overcoming the limitations of magnesium ion-based energy devices. The novel Mg2+ electrolyte exhibits a high conductivity of 10−3 S cm−1, making it suitable for battery applica...
The Electrifying Technical Organic Syntheses (ETOS) research network, coordinated by JGU, will be funded from BMBF to support the development of new techniques for organic chemical synthesis using electrolysis. The cluster aims to promote forward-looking innovations and secure technological sovereignty.
A new battery health assessment indicator SoNA was proposed to evaluate nonlinear aging in lithium batteries. The research developed a multidimensional grading system combining traditional SoH with SoNA to comprehensively assess battery safety and nonlinearity.
Scientists designed novel hard carbon anodes with controlled defects, pore structures, and cation doping to boost sodium storage capacity. The optimized materials showed improved rate capability, cycling stability, and energy density. Introducing potassium ions regulated the microstructure and surface functionality of the anodes.
Researchers at Idaho National Laboratory developed a simple acid treatment to improve the efficiency of protonic ceramic electrochemical cells (PCECs), overcoming long-standing challenges. The treatment increases the surface area between the electrode and electrolyte, allowing for more efficient flow of hydrogen atoms and improved cell...
The study demonstrates a sulfide coating, amorphous Li2S via ALD, that protects the NMC811 cathode and improves capacity retention, rate performance, and mitigates voltage reduction. The coating also removes O2 released from the NMC cathode during charging.
Scientists have created new photoelectrode materials with improved performance by rapidly heating metal-oxide thin films to high temperatures without damaging the underlying glass substrate. This breakthrough increases the efficiency of solar water splitting and has potential applications for producing 'green' hydrogen and quantum dots.
Researchers at Dalian Institute of Chemical Physics developed a low-cost hydrocarbon membrane that enables commercial-scale flow batteries for long-duration energy storage. The membrane's high stability and conductivity enabled the creation of an alkaline zinc-iron flow battery stack with high energy efficiency.
Researchers have discovered the opto-ionic effect, where light increases the mobility of ions in ceramic materials, improving the performance of devices such as solid-state electrolytes in fuel cells and lithium-ion batteries. This effect could lead to higher charging speeds and more efficient energy conversion technologies.
A unified approach to electrochemical energy storage involves recognizing a spectrum between chemical and physical retention of ions. This understanding can lead to the development of devices that combine high energy and high power, such as flexible batteries for wearable electronics.
Scientists at the University of Groningen have designed a new type of flow battery that stores power in a simple organic compound. This breakthrough addresses the limitations of traditional flow batteries, which contain rare metals and are expensive.
Researchers developed a method to modulate molecular orbital energies, charge transport capacities, and spin electron densities of active units in covalent organic frameworks. This approach improves the stability of organic radicals and enhances the redox activity of COFs, leading to optimized lithium ion storage.
Researchers develop alternative diagnostic technology to evaluate Li-ion battery degradation mechanism quickly and efficiently. The approach allows for rapid detection of LLI degradation, facilitating real-time monitoring of individual cells' state of health.
A research team has developed a highly active catalyst for CO2 reduction using electrocatalysts with dual-atom iron sites. The catalyst shows a 2.8 times higher conversion efficiency compared to single-atom catalysts.
A team of scientists is mapping out California's Lithium Valley and assessing the Salton Sea geothermal field's potential for sustainable, environmentally friendly lithium extraction. The goal is to meet America's urgent demand for lithium in a way that doesn't harm the environment.
Researchers developed a novel coating material based on methylene blue dye to mitigate the polysulfide shuttling effect in lithium-sulfur batteries, improving their durability and electrochemical performance. This breakthrough could lead to the widespread adoption of sustainable energy storage systems.
Researchers have identified a class of calcium-based cathode materials that show promise for high-performance rechargeable batteries. By running quantum mechanics simulations, the team pinpointed cobalt as a well-rounded transition metal for a layered Ca-based cathode.
Researchers have developed a new nanocatalyst for the dry reforming of methane, overcoming coking resistance with its confined core-shell structure. The catalyst's superior carbon resistance is attributed to the confinement and electron transfer between In and Ni.
A study by Oregon State University has discovered a method to enhance the round-trip efficiency of compressed air energy storage, which could be crucial for renewable energy. The researchers developed a thermochemical energy storage scheme that captures heat in chemical bonds, resulting in a higher energy density and improved performance.
A new device has been developed that converts sunlight into two promising sources of renewable fuels – ethylene and hydrogen. The researchers found that by optimizing the working conditions for cuprous oxide, a promising artificial photosynthesis material, they can create a more stable system.
Researchers investigated the effect of temperature on Ionic-liquid-modified non-precious metal catalysts for oxygen reduction reactions, demonstrating that IL modification significantly increases ORR activity and stability, even at elevated temperatures. The study confirms the SCILL concept's potential in improving LTFCs.
Researchers have developed highly efficient flexible perovskite solar cells by annealing a SnO2 ETL in a rough vacuum at a low temperature, achieving 20.14% efficiency and improved interface connection.
Scientists from City University of Hong Kong successfully developed battery-like electrochemical Nb2CTx MXene electrodes with stable voltage output and high energy density. The findings break the performance bottleneck of MXene devices, exhibiting superior rate capability, durable cyclic performance, and high energy density.
A new approach controls the coffee ring effect in spray-coating, leading to high-performance perovskite solar cells with 19.17% power conversion efficiency. The reaction-dependent method uses solvent selection to regulate solute distribution and achieve uniform films.
A new process for decentralized hydrogen production has been developed, using chemical-looping to produce high-purity hydrogen directly from biogas. The technology is now ready for commercial use and could make hydrogen production more competitive with other methods.
A team of researchers from Osaka University has designed a sulfonated polyaniline network for reservoir computing, achieving 70% accuracy in speech recognition tasks. The device uses an electrochemical approach and has potential applications in the development of artificial intelligence devices.
Researchers have discovered a three-part catalyst configuration that transforms CO2 into ethanol through a well-tuned interplay between cesium, copper, and zinc oxide sites. The study provides a fundamental understanding of the reaction mechanism and will drive further research towards developing practical industrial catalysts.
Researchers develop a novel method to convert nitrate in wastewater into ammonia with nearly 100% efficiency and zero greenhouse gas emissions. The system utilizes cobalt catalysts and solar power to achieve unprecedented solar-to-fuel efficiency, outperforming existing technologies.
A new study from the University of Illinois at Urbana-Champaign introduces an electrochemical redox desalination process that removes up to 99% of excess salt from whey while refining over 98% of its valuable protein content. The process uses less energy and operates at a lower cost compared to conventional desalination systems.
Researchers at Pusan National University have developed a novel electrocatalyst that can effectively produce hydrogen and oxygen from water at low cost. The catalyst, composed of transition metal phosphates, achieves high surface area and fast charge transfer, making it suitable for commercial on-site production of hydrogen.
A recent award will aid a project that aims to produce more hydrogen gas while reducing electric power consumption. The goal is to increase clean hydrogen production, which can benefit various sectors such as household power, electric vehicles, and industrial applications.
This study introduces a Zr-doped Na3V2(PO4)2F3 coated with N-doped carbon, which improves SIB performance by increasing reversible capacity and rate capacity. The optimized electrode demonstrates excellent cycling stability.
The review discusses defect and interface engineering for e-NRR electrocatalysts, emphasizing active sites and intrinsic mechanisms. It highlights the potential strategies to develop more advanced NRR electrocatalysts, promoting the creation of more efficient catalysts for electrochemical nitrogen reduction.