Articles tagged with Electrochemistry
Researchers at MIT have developed a new kind of battery using abundant and inexpensive materials, offering a potential solution for large-scale backup power systems. The battery's molten salt electrolyte has been shown to prevent dendrite shorting, a common reliability issue in lithium-ion batteries.
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...
Researchers have developed instruments for single-molecule electrochemistry and spectroscopy, aiming to design and synthesize materials with chemistry, physics, and engineering at the atomic scale. They discuss challenges and opportunities in functionalizing molecular junctions and forming stable molecular electronic devices.
A team of researchers from Tokyo University of Science has developed a novel multi-proton carrier complex that shows efficient proton conductivity even at high temperatures. The resulting starburst-type metal complex acts as a proton transmitter, making it 6 times more potent than individual imidazole molecules.
Researchers developed a method for detecting cancer miRNA patterns using DNA computing technology, enabling simple and early cancer diagnosis from liquid biopsies. The technology uses nanopore decoding to recognize cancer-specific expression patterns even at extremely low concentrations of miRNA.
Harvard researchers develop new method to extend the lifetime of organic molecules in organic aqueous flow batteries, improving their commercial viability. The approach works by periodically providing a shock to revive decomposed molecules, resulting in a net lifetime increase of up to 260 times.
Researchers at the University at Buffalo have developed a new magnetic material that can help monitor the amount of charge left in lithium-ion batteries. By tracking changes in the material's magnetism, scientists can estimate the battery's state of charge.
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.
A team led by UMass Amherst food scientist Matthew Moore has received a $750,000 grant to develop portable biosensors for detecting noroviruses and mycotoxins in foods. The technology aims to provide quick, cheap, and effective detection without lab testing.
Scientists have developed a sustainable method to create valuable aroma compound mixtures from limonene, the main compound in orange peel oil. The process generates an amber-colored liquid with a pleasant odor and 17 different compounds with fruity, herbal, citrus, and resinous notes.
The electrochemistry designette is a pedagogical tool that enables instructors to visualize students' competence and misconceptions on electrochemical principles. Developed by SUTD researchers, the designette has proven highly effective in allowing instructors to spot misconceptions and provide prompt intervention.
Researchers developed a disposable electrochemical sensor using graphite-based molecularly imprinted polymers to detect theophylline levels. The sensor can identify low concentrations of theophylline (2.5 μg/mL) in whole blood within 3 seconds, enabling real-time monitoring and potential overdose prevention.
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.
A team of researchers has developed a tunable graphene-based platform to study exceptional points, which exhibit unique properties when light and matter interact. The breakthrough could lead to advancements in optoelectronic technologies and potentially contribute to the development of 'beyond-5G' wireless technology.
Scientists have created a quasi-solid-state cathode for solid-state lithium metal batteries, achieving significant reduction in interfacial resistance. The new design uses an ionic liquid to maintain excellent contact with the electrolyte, promising new directions in battery development.
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 used x-rays to track lithium deposition and removal from a battery anode during cycling, identifying irregularities that lead to reduced capacity and lifespan. Incomplete lithium stripping causes dead spots on the anode, reducing cell capacity and electron flow.
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.
Researchers developed a novel electroanalytical technique that co-detects dopamine and uric acid in urine samples, overcoming interference from ascorbic acid. The technique uses a gold-containing ternary nanocomposite electrode, enabling simultaneous detection of low-level DA and UA under physiological conditions.
Scientists at Linköping University successfully integrated artificial nerve cells with a living plant using printed organic electrochemical transistors. The system mimics the ion-based mechanism of pulse generation in plants, inducing action potentials that cause the leaves to close.
Scientists at Hokkaido University have developed an electrochemical method to recycle waste CO2 while producing molecules useful for drug development. The method utilizes an electron added to either the CO2 molecule or another molecule in the solution, making it easier to react with each other.
Researchers at Tokyo University of Science have discovered a method to improve the crystallinity of coordination nanosheets by mixing two metal ion solutions. This approach results in higher crystallinity and improved performance in devices such as electronics and batteries. The findings open a new pathway for tuning the functional pro...
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.
A new method to produce hydrogen from water has been discovered, using cobalt and manganese as catalysts. This breakthrough could lead to a cleaner and more sustainable hydrogen economy, reducing reliance on fossil fuels.
Researchers at the University of Tsukuba have developed a new technique for detecting hydrogen fuel cell failures using magnetic flux sensors. This breakthrough may lead to more reliable and efficient zero-emission vehicles with reduced carbon footprint.
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.
A team of scientists from Korea Maritime and Ocean University has developed a novel synthesis route to produce a high-performance co-doped anode material for rechargeable seawater batteries. This breakthrough enables the creation of efficient and sustainable maritime applications, including emergency power supply for coastal nuclear pl...
Researchers from Waseda University have developed an alternative technique, sampled current voltammetry (SCV), to accurately determine the activity of electrocatalysts used in water-splitting reactions. The study shows that SCV can provide reliable measurements of electrocatalytic performance at constant steady-state applied voltages.
A cost-effective artificial leaf from the University of Illinois Chicago can capture carbon dioxide at rates 100 times better than current systems. It works in real-world environments and releases CO2 for fuel and materials.
A team of researchers has successfully developed a material-based reservoir computing device using single-walled carbon nanotubes and porphyrin-polyoxometalate composites. This innovation enables AI robots to classify grasped objects based on tactile signals, demonstrating the potential for energy-saving AI systems and situational awar...
Scientists develop a sensitive electrochemical detector using cerium oxide nanozyme to identify organophosphate pesticides in plants. The method provides an unprecedented wider linear range and a detection limit of 0.06 mmol/L, making it suitable for detecting trace amounts of pesticide residues.
A novel InOOH electrocatalyst with frustrated Lewis pairs enables efficient urea synthesis from CO2 and N2 at room temperature. The catalyst achieves a high urea yield rate of 6.85 mmol h-1 g-1, promising a sustainable solution to excessive CO2 emissions during N2 fixation.
Researchers at the University of Texas at Austin have developed a new sodium-based battery material that overcomes the dendrite problem in earlier sodium batteries. The new material recharges as quickly as a traditional lithium-ion battery and has a higher energy capacity than existing sodium-ion batteries.
Researchers at Lehigh University are working on a project funded by the Good Food Institute grant to adapt human tissue engineering techniques for growing meat in the lab. The team is developing a scaffold for meat cells to grow on and using electrochemistry, nanomaterial design, and liposomal delivery vehicles to promote fibrous growth.
Researchers in Japan have designed the first de novo-designed peptides that can form artificial nanopores to identify and enable single molecule-sorting of genetic material in a lipid membrane. The peptides can detect specific molecules, including DNA, and have the potential to mimic natural proteins' ability to detect specific proteins.
Researchers have developed a new electrochemical technique for printing metal objects at the nanoscale, achieving resolutions of up to 25 nanometres in diameter. This technology has vast potential applications in fields like microelectronics, sensor technology, and battery production.
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.
Researchers at the University of Basel have developed a new family of iron-based sensitizers for dye-sensitized solar cells, promising a low-cost supplement to traditional photovoltaic systems. The new materials achieve overall efficiency of 1 percent, but represent a milestone in further research and development.
The study found that applying an electrical potential can stabilize high-temperature superconducting superhydrides at much lower pressures than previously thought. This new method could lead to the creation of new materials with broad applications in consumer and industrial sectors.
Researchers at UNSW have developed liquid metal enabled continuous flow reactors that can produce materials with tuneable system performance and controlled material quality. The systems rely on surface tension to pump fluids, eliminating the need for mechanical parts.
Researchers at Osaka Prefecture University create a high-capacity Li2S-based positive electrode using an oxidation-tolerant solid electrolyte, bringing all-solid-state batteries closer to reality. The study found that the electrochemical window of solid electrolytes must exceed 0.2V for high energy capacity.
Researchers at Washington University in St. Louis have developed a bifunctional catalyst for the oxygen electrode, enabling high round-trip energy efficiency in unitized regenerative fuel cells. The catalyst, Pt-Pyrochlore, has a bifunctionality index of 0.56 volts and achieved a RTE of 75%.
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 at Mainz University have conducted a literature review on cathodic corrosion in electrosynthesis, highlighting the need for new materials and methods to prevent electrode dissolution. The team aims to develop a method to generate plastic precursors from agricultural waste using electrosynthesis.
North Carolina State University researchers develop a soft and stretchable device that harnesses kinetic energy from movement to generate electricity. The device works in both dry and wet environments, including underwater, with a power density comparable to popular energy harvesting technologies.
High-energy-density Li–S batteries have been evaluated for their cycling lifespan, showing that considerable lithium polysulfides exist in the electrolyte despite high specific capacities. The actual capacity loss is mainly attributed to dissolved sulfur species rather than Li anode depletion.
Researchers from USTC create NIR-active lattice-matched morphological photoanodes with high efficiency and wide light absorption. The new design reduces carrier-trapping defects and enhances ultrafast charge transfer, paving the way for efficient NIR-based PEC devices.
Researchers at NC State re-examined birnessite's behavior, finding that nanoconfined interlayer structural water mitigates ion interactions, enabling an intermediate adsorption mechanism. This leads to capacitive behavior without significant structural change.
Scientists from Tokyo Metropolitan University have developed a scalable method to create ordered porous metallic oxide thin films using a range of transition metals. The process enables the production of highly ordered nanohole arrays ideal for various industrial applications.
A team at NYU Tandon School of Engineering developed planar micro-sensors using nano-graphitic carbon, increasing sensitivity and spatial resolution for brain studies. The sensors' performance can be adjusted by engineering material structure, offering new prospects for future brain studies.
A new method developed at KAUST uses laser beams to produce uniform, three-dimensional graphene electrodes with high porosity and surface area. The electrodes exhibit excellent electrocatalytic activity and distinguish paracetamol and other compounds. Researchers plan to optimize the fabrication of sensors and expand their applications.
Chemistry Professor Siegfried R. Waldvogel from Johannes Gutenberg University Mainz has received the 2020 Manuel M. Baizer Award, an international recognition of his pioneering work in electrochemistry and its applications. The award highlights Waldvogel's contributions to sustainable chemical product manufacturing through electrosynth...
Researchers use electrochemistry to synthesize difficult-to-make compounds and reduce waste and toxic byproducts compared to traditional chemical reagents. The ElectraSyn 2.0 module has enabled chemists to access the technology without electronics expertise, but scaling up production remains a challenge.
Scientists at Lomonosov Moscow State University have developed a new theory explaining the inertial lift force acting on finite-sized particles in microchannels. This phenomenon enables efficient particle sorting, including separation of healthy cells from cancerous ones.
Researchers have developed a proof-of-concept for producing drop-in fuels from biomass and electric energy through combined microbial and electrochemical conversion. The process achieved a 50% yield using corn beer as feedstock, with potential to scale up and improve yields.
A team of Italian scientists has created a hybrid device that links biological and electronic systems, leveraging pectin to replicate memristive behavior. The device features a double-layered polyelectrolyte structure that enables it to learn and perform logic/classification functions.
The Electrochemical Society (ECS) has removed the paywall to its digital library during Open Access Week, providing free access to over 132,000 scientific articles. This move is a precursor to ECS's Free the Science initiative, which aims to make the entire digital library open access by 2024.