Articles tagged with Electrochemistry
Researchers stabilize β-NaMnO2 electrodes by Cu doping, reducing capacity loss and enabling enhanced cycle stability. The study advances understanding of phase transitions in Na-based oxides, paving the way for sustainable energy storage solutions.
Researchers at WVU have designed a fuel cell that can switch between storing and generating electricity, making it suitable for balancing an overwhelmed US electrical grid. The new design, called conformally coated scaffold, stays stable even at high temperatures and humidity levels.
Researchers at KAIST develop a 'pedestrian-friendly smart window' technology that reduces heating and cooling energy consumption in urban buildings while resolving light pollution issues. The RECM system operates in three modes, allowing for real-time adjustment of light and heat transmission.
A team of researchers from Shibaura Institute of Technology, Japan, has developed a novel fluorinating quaternary ammonium complex with extremely low hygroscopicity, making it an excellent reagent for electrochemical fluorination. The new agent was synthesized by combining KF with tetrabutylammonium bromide and showed promise in pharma...
Researchers at Seoul National University have developed a novel water electrolysis operation strategy that can produce green hydrogen without complex catalyst manufacturing processes. The 'Electrochemical Activation' method allows for high-efficiency and long-lasting hydrogen production using commercial nickel electrodes, eliminating t...
Researchers at Politecnico di Milano have developed a system that allows bacteria to sense light and convert it into electrical signals without genetic modification. This method has the potential to develop next-generation antimicrobial platforms and biocompatible 'bacterial robots' for targeted drug delivery.
Researchers at Pohang University of Science & Technology have developed a novel iron-based catalyst that more than doubles the conversion efficiency of thermochemical green hydrogen production. The new catalyst, iron-poor nickel ferrite (Fe-poor NiFe2O4), enables significantly greater oxygen capacity even at lower temperatures.
Researchers from Xiamen University have developed a novel high-temperature shock method to synthesize SACs, achieving copper loading of 0.54 wt%. The study introduces a rapid and effective energy input approach for atomicization synthesis, overcoming challenges in traditional pyrolysis methods.
Researchers at MIT have developed a new fuel cell that can carry three times as much energy per pound as current EV batteries, offering a lightweight option for electrifying transportation systems. The technology has the potential to enable electric aviation and other sectors like marine and rail transportation.
Researchers developed amorphous Ni-Fe mixed oxides using sol-gel method to enhance oxygen evolution reaction (OER) activity and operational durability in anion exchange membrane water electrolyzers (AEMWEs). The material demonstrated optimal OER performance, achieving a low overpotential of 291 mV and remarkable stability.
Researchers developed a simple, economical and environmentally friendly purification method for mullite-type bismuth ferrite, improving its efficiency in producing green hydrogen. The process uses light and glycerol to eliminate unwanted compounds, resulting in high-purity material suitable for photoelectrochemical reactions.
Researchers at POSTECH have developed an interlocked electrode-electrolyte system that forms covalent chemical bonds between the electrode and electrolyte, maintaining long-term stability. The IEE-based pouch cell demonstrated significantly higher energy density compared to traditional lithium-ion batteries.
Researchers from the University of Oklahoma have made significant breakthroughs in protonic ceramic electrochemical cells (PCECs), addressing challenges in manufacturing and efficiency. A new approach eliminates cerium-based materials, allowing pure barium zirconate-based electrolytes to remain stable at record-low temperatures.
Researchers at TUM have developed a new material that exceeds existing records for ion conductivity in solid-state batteries by incorporating scandium into a lithium antimonide compound, creating specific gaps for easier lithium movement
Researchers discovered that metal fatigue in the anode is the primary cause of solid-state battery failure, leading to microcracks and dendrite growth. The study provides a predictable framework for designing longer-lasting batteries using established mechanical laws.
Researchers at Tsinghua University developed a ball milling-assisted technique to revitalize aged LiCoO₂ cathodes, achieving high discharge capacity and initial Coulombic efficiency. The method offers compelling advantages over conventional recycling pathways in terms of efficiency, cost, and environmental footprint.
Researchers have developed a new approach to optimize the performance of aqueous zinc-ion batteries by designing electrolyte additives with stereoisomeric structures. The study found that certain additives exhibit stronger adsorption capacities and can promote uniform charge distribution, leading to improved battery lifespan.
Researchers have developed self-healing materials for electrodes, electrolytes, and encapsulation layers to restore performance and extend battery lifespan. The technology has the potential to revolutionize consumer electronics, electric vehicles, and renewable energy storage systems with improved safety and reliability.
Researchers have developed a new sensor to detect hazardous gas leaks in lithium-ion batteries, which could prevent catastrophic failures and enhance the reliability of battery-powered technologies. The sensor detects trace amounts of ethylene carbonate vapour, targeting potential battery failures before they escalate into disasters.
A collaboration between Japanese, Korean, and American researchers found that larger cations suppress platinum dissolution compared to smaller cations. The study reveals a 'cation effect' influencing electrode durability.
Researchers have developed cost-effective and efficient water-splitting catalysts using cobalt and tungsten, which surprisingly increase in performance over time. The unique self-optimization process involves changes in the chemical nature of the catalyzing oxide, leading to improved activity and reduced overpotentials.
Researchers have developed a novel electrochemistry approach to build new molecules using micelles from naturally occurring amino acids and coconut oil. This breakthrough method could reduce the cost of making medicines by combining solvents, electrolytes, and reaction boosters into one simple tool.
A team of researchers, led by Kelsey Hatzell from Princeton University, has made breakthroughs in developing anode-free solid-state batteries. These batteries have the potential to store more energy in less space and operate with high performance at a wider range of temperatures.
University of Missouri researchers developed a solution to improve solid-state battery performance by understanding the root cause of issues. They used 4D STEM to examine atomic structures without disassembling batteries, ultimately determining the interphase layer was the culprit.
Recent developments in bismuth-based catalysts for electrochemical CO2 reduction to formate highlight their potential as a promising strategy. Advances include the use of innovative synthesis techniques and engineering to attain high cathodic current densities.
Scientists from SANKEN at Osaka University created an electrically controlled nanogate that can be tailored for specific molecules. The gate's diameter was adjusted using voltage, leading to distinct ion transport behaviors. This technology has the potential to enable precise control over molecule transport and reaction systems.
The study introduces a game-changing concept in dual-mode display design by uniting luminescence and coloration within a single device. The device leverages smectite clay to stabilize europium(III) complexes for vibrant luminescence and heptyl viologen derivatives for striking color changes.
Scientists introduce a novel approach to construct robust electrode/electrolyte interphase layers on both cathode and anode of aqueous zinc batteries. The use of glutamate additives enables efficient suppression of undesirable side reactions, leading to improved electrochemical performance and cycling stability.
Researchers unveiled an innovative system that outperforms conventional filtration methods by combining microbial electrochemical technologies with enhanced biodegradation processes. The biofilter demonstrates significant removal of pharmaceuticals and herbicides, altering their chirality to influence toxicity and biodegradability.
Scientists have identified a metal-free carbon-nitrogen carbon-type hybrid electrocatalyst, CN@C, that enhances the selectivity of hydrogen peroxide production through an electrocatalytic oxygen reduction reaction. The findings show that CN@C outperforms other catalysts in terms of stability and durability.
Researchers at Case Western Reserve University have developed high-performance, low-cost zinc-sulfur batteries with enhanced energy capacity, improved conductivity and stability. These advancements address long-standing safety concerns and enable smaller, longer-lasting designs.
Chemists at Ohio State University have developed a novel way to capture and convert carbon dioxide into methane, utilizing nickel-based catalysts and reducing the need for massive amounts of energy. This breakthrough could pave the way for more efficient climate mitigation technologies and help close the carbon cycle.
A team of scientists at Johannes Gutenberg University Mainz has developed an electrocatalytic conversion technique that converts carbon dioxide into ethanol. The cobalt-copper tandem system achieves selective conversion with an 80% yield, opening up a sustainable method for chemical applications and food conservation.
Combining visible light with electrochemistry improves CO2 conversion rates and selectivity, enabling the production of valuable products such as carbon monoxide and hydrogen. The study's findings have significant implications for catalysis research and industrial applications.
Researchers developed a wearable sensor using single-atom materials to detect uric acid, a biomarker for various health conditions. The sensor offers improved sensitivity and selectivity compared to conventional nanomaterials.
Scientists have developed an electrochemical approach using catalysts derived from used lithium-ion batteries to produce hydrogen peroxide. The method utilizes carbon nanostructures and cobalt, displaying catalytic properties in oxygen reduction reactions.
Researchers have developed a lithium-sulfur battery with improved iron sulfide cathode, retaining capacity over 300 charge-discharge cycles. The battery also withstands physical stress, including folding or cutting, making it safer and more efficient.
Researchers found that biological condensates, previously overlooked cellular structures, play a significant role in modulating cell activity and influencing global traits such as antibiotic resistance. These 'blobs' can separate or trap proteins and molecules, affecting cellular behavior and electrochemical processes.
Researchers create silver nanoparticles infused with azithromycin that effectively break down biofilms and unveil a new sensing method to assess antimicrobial activity. The novel approach offers a promising solution against antibiotic-resistant bacteria, with potential applications in coating medical devices.
Researchers have developed a cost-effective and easily reproducible point-of-care testing device that can accurately measure cortisol levels in the blood. The device uses iridium oxide nanoparticles to improve stability, sensitivity, and selectivity, allowing for commercial use.
Researchers from UNSW used magnetic fields to study singlet fission, a process that breaks light particles into smaller chunks, increasing efficiency. The study could lead to improved silicon solar cell technologies, potentially achieving over 30% efficiency and reducing energy costs.
Researchers from Ruhr University Bochum elucidate the mechanism of hydrogen peroxide formation in water electrolysis by adding carbonates. The presence of hydrogen carbonate in the electrode vicinity facilitates the production of hydrogen peroxide, reducing unwanted oxygen formation.
A new study by Prof. Daniel Mandler and his team found that organic molecules can significantly influence the electrical properties of gold nanoparticles, up to 71 mV. The research highlights the importance of capping agents in controlling nanoparticle behavior and provides insights for customizing their interactions.
Researchers have created a novel process for producing acetylene from CO2, reducing reliance on petroleum feedstocks. The new method achieves high current efficiency of 92% and produces CaC2 with minimal sulfur and phosphorous content.
A research team at Ruhr University Bochum has developed a catalyst that can convert ammonia into hydrogen and nitrite, producing both a clean energy carrier and a fertilizer precursor simultaneously. The process doubles the hydrogen yield while minimizing nitrogen production.
A team of scientists and engineers designed an electrolyte that maintains high power delivery during charging and discharging cycles. This innovation addresses the key challenge of low power delivery at landing stages in electric aircraft, where batteries are not fully charged.
Researchers developed a technique to separate well-mixed mixtures, creating an economically viable process for synthesizing and purifying ionic liquids like [bmim][BF4]. High-purity [bmim][BF4] was produced with a purity exceeding 99%, and the recovered layer containing methylimidazole could be recycled.
Researchers from Doshisha University have developed a cost-effective method to produce valuable hydrocarbons from CO2. The study uses an ionic liquid containing metal hydroxides as the electrolyte, achieving high current efficiencies for ethylene and propane production.
Researchers from Pohang University of Science & Technology have developed a high-energy, high-efficiency all-solid-state sodium-air battery that can reversibly utilize sodium and air without additional equipment. The breakthrough overcomes the challenge of carbonate formation, increasing energy density and reducing voltage gap.
Researchers developed polymeric protective films to improve anode interface stability in sulfide-based all-solid-state batteries. The films, made from various polymers, showed improved interfacial stability and high-capacity retention rates after multiple cycles.
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.
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 at Pitt and Drexel have discovered that electrocatalysts can promote chemical reactions that generate ozone in water through corrosion and solution phase reactions. This breakthrough could lead to the development of more efficient and sustainable electrochemical ozone production technologies.
Researchers at RIKEN have improved the stability of a green hydrogen production process by using a custom-made catalyst, increasing its lifetime by almost 4,000 times. The breakthrough uses earth-abundant materials, making it more sustainable and potentially cost-effective for widespread industrial use.
A handheld device developed by Osaka Metropolitan University's team can detect multiple bacterial species within an hour, including disease-causing E. coli and salmonella. The sensor uses organic metallic nanohybrids to distinguish electrochemical signals on the same screen-printed electrode chip.
Researchers used operando spectroscopy to study the oxygen evolution reaction in iridium oxide catalysts. The team found that binding of reaction intermediates to the electrode was controlled by long-range interactions between the intermediates and the solution, which depended on pH.
Scientists have successfully converted methane (CH4) into formic acid (HCOOH) using oxygen (O2) at room temperature through an electrochemical process. The high-pressure electro-Fenton strategy achieved a Faradaic efficiency of 81.4% with an ultra-low cathodic overpotential of 0.38 V.
Researchers have developed an innovative detection method using artificial glycocalyx to capture and identify specific bacteria. The sensor can detect intact bacteria, even in small quantities, and distinguish them from harmless bacteria.
Researchers at the University of Illinois have developed a novel electrochemical process to extract precious metals, including gold and platinum group metals, from discarded electronics and low-grade ores. This method uses less energy and fewer chemical materials than current methods, producing high-purity metals with minimal waste.
Researchers at a FAPESP-supported research center have developed an electrochemical nitrogen reduction process using iron oxide and molybdenum disulfide catalysts. This method eliminates the need for high temperatures and pressures, reducing power consumption and greenhouse gas emissions.