Articles tagged with Electrochemical Reactions
Researchers at Drexel University have developed a new method that combines UV-visible spectroscopy with cyclic voltammetry to track ion movement in batteries and supercapacitors. This breakthrough could lead to the design of higher performing energy storage devices.
Researchers have developed a novel process to convert nitrogen and hydrogen into ammonia at ambient temperature and pressure with high energy efficiency. The process uses a solid polymeric electrolyte and eliminates the need for purification, producing pure ammonia gas.
A team of researchers at KAUST has developed a biological method to produce size-controlled palladium nanoclusters anchored on the surface of Geobacter sulfurreducens, outperforming benchmark catalysts in water-splitting reactions. This eco-friendly approach could provide a sustainable solution for high-performance catalysis.
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.
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 discovered the most efficient way to produce ammonia through electrochemical synthesis, increasing its sustainability. The D5 step site on ruthenium nanoparticles was found to be the most active site for the nitrogen reduction reaction.
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 team of researchers from GIST created a protection layer for nickel-iron catalysts using tetraphenylporphyrin, increasing their life and performance. This innovation reduces the dissolution of iron atoms during oxygen evolution reactions, resulting in prolonged hydrogen production.
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.
Researchers from City University of Hong Kong developed a new ultra-stable hydrogen evolution reaction electrocatalyst based on two-dimensional mineral gel nanosheets. The catalyst exhibits excellent electrocatalytic activity and long-term durability, with an overpotential of only 38.5 mV at 10 mA cm−2.
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 at KAUST developed conductive membranes that stimulate microbial growth and separate biochemical products, reducing the CO2 conversion time from over 30 days to just one month. The membranes use nickel nanoparticles to catalyze hydrogen production, enhancing efficiency and stability in microbial electrosynthesis systems.
A national collaboration will focus on creating durable and scalable soft semiconductor technologies for low-cost, highly efficient solar fuel production. Organic polymers offer 'exquisite control' over material properties, allowing for tunability and dynamic adjustment to maintain equilibrium.
Researchers discovered a 'volcano-shaped' relationship between polysulfide adsorption and catalytic activity in lithium-sulfur batteries. This finding modifies the long-standing principle that strong adsorption leads to good catalytic activity, suggesting catalysts should be designed separately to improve performance.
Researchers at the University of Surrey have successfully increased the lifespan and stability of solid-state lithium-ion batteries. The new high-density batteries are less likely to short-circuit, addressing a common issue in previous models.
A team of researchers has developed a proof-of-concept for electrochemical polymerization without an external power supply, opening up new avenues for environmentally-friendly synthesis reactions. The innovation uses streaming potential-driven electrochemistry to achieve organic synthesis.
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.
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 at MIT have developed a new, inexpensive catalyst material that can produce oxygen from water, potentially replacing rare metals and reducing the cost of producing carbon-neutral fuels. The material, made of abundant components, allows for precise tuning and matches or exceeds the performance of conventional catalysts.
A team of researchers from Shibaura Institute of Technology has developed a transducer powered by electrochemical reactions to drive fluid pumps without cumbersome parts in soft robots. The ECDT enables self-sensing technology, enhancing the multifunctionality of soft robots and allowing for miniaturization.
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.
Cornell University chemists have developed a class of nonprecious metal derivatives that can efficiently power cars and generate electricity with minimal greenhouse gas emissions. The breakthrough could enable wider deployment of hydrogen fuel cells, replacing combustion engines and reducing waste.
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 research group synthesized a Pb-alloyed Cu catalyst, showing high activity for electrochemical CO2 reduction with selectivity to formate. The study reveals a multi-path mechanism for CO2 reduction through COOH* and HCOO* intermediates.
Researchers at Shinshu University successfully insert Mg2+ between graphite layers, achieving a large reversible capacity of ~200 mA h g-1. This breakthrough paves the way for developing magnesium secondary batteries with high energy density and long lifespan.
Researchers developed direct cellulose fuel cells that directly use cellulose as fuel without reforming processes. The study found that gold is highly active in the cleavage reaction at negative potential and nickel and palladium are active in decomposition reactions at positive potential.
Researchers at Stanford University and SLAC National Accelerator Laboratory have created a new catalyst that accelerates the first step in turning carbon dioxide into fuel in two different ways: with heat and electricity. This breakthrough could lead to more efficient and sustainable production of chemicals and fuels by reducing greenh...
Researchers at MIT have discovered three ways bubbles form and release from porous electrodes, which can be controlled by adjusting surface treatment. The team found that the wettability of the surface is crucial in determining bubble formation, allowing for precise control over system performance.
Researchers at Okayama University create novel electrochemical reaction to produce thienoacenes, key building blocks in organic semiconductors. The new method replaces expensive rare metal catalysts with an eco-friendly approach, reducing manufacturing costs and environmental impact.
Modestino's research advances organic electrosynthesis, a mission to drive sustainability in the chemical manufacturing industry. He plans to identify key factors limiting electrochemical reactor performance and derive rules for optimal operation.
Scientists at Ruhr-University Bochum created a new approach to observe nanoparticles before, during and after electrochemical reactions. The method allowed them to monitor the structure and composition changes of individual particles throughout their entire lifecycle.
Researchers at Scripps Research Institute create a battery-like system to manufacture medicines, avoiding safety risks and increasing versatility. They use additives from lithium-ion battery manufacturing to conduct reductive electrochemistry safely and efficiently.
Researchers from NIMS and Hokkaido University discovered that proton transfer in electrochemical reactions is governed by the quantum tunneling effect, revealing a novel physical process. This breakthrough may accelerate basic research leading to highly efficient electrochemical energy conversion systems based on quantum mechanics.
Researchers at the University of Illinois Chicago have developed 15 new types of 2D transition metal dichalcogenides that can act as catalysts in lithium-air batteries. These materials enable batteries to store up to 10 times more energy and charge faster, potentially increasing electric vehicle range to 400-500 miles on a single charge.
A team of researchers has successfully replicated the internal channel structures of natural enzymes in metallic nanoparticles, resulting in three times greater catalytic activity. The study focused on the oxygen reduction reaction and found that active centers within the channels enhanced reaction efficiency.
Researchers have developed a catalyst that converts CO2 into liquid alcohols like ethanol and propanol, offering a potential solution for renewable transportation fuels. The new catalyst design enhances CO2 reduction by incorporating sulfur atoms and copper vacancies, inspiring more efficient catalysts.
A new electrode material for lithium-ion batteries with high capacity has been proposed using phosphorus-encapsulated carbon nanotubes. The electrodes showed an improvement in electrochemical reactivity and reversible charge-discharge reactions, resulting in capacities two times higher than that of graphite used in commercial LIBs.
Researchers at ORNL developed a nanoscale catalyst that converts carbon dioxide directly into ethanol with high selectivity. The process uses low-cost materials and operates at room temperature in water, making it suitable for industrially relevant applications.
A Stanford-led team has devised a way to visualize the fundamental building blocks of lithium-ion batteries, revealing a complex process that was previously understood in average terms. The study could lead to better battery designs and longer lifetimes by improving uniformity and reducing mechanical stress.
A new prototype lithium-air battery has been shown to produce only lithium superoxide, not peroxide, as it discharges, offering high efficiency and good cycle life. This discovery was made using a state-of-the-art mass spectroscopy apparatus that measures electrochemical reaction products in situ during charging or discharge.
Scientists create ultra-thin FeSe films using electrochemical etching, increasing superconducting transition temperature from bulk form to 40K. This method enables exploration of nontrivial physical phenomena in 2D materials, previously difficult to address.
A new method combining electrochemistry and photovoltaics is being explored to clean up oxidation reactions. By harnessing solar energy, the need for toxic chemicals can be eliminated, reducing environmental harm. The research aims to make chemical synthesis more efficient and environmentally friendly.
A chemist at Washington University in St. Louis has developed a technique that allows for the simultaneous monitoring of up to 12,000 molecules on an electrochemically addressable computer chip. The method uses a polymer substrate and confining agents to selectively initiate chemical reactions on individual electrodes.
Researchers at the University of Illinois developed a simple electrochemical process for direct patterning of metallic interconnects and nanostructures. The S4 process uses a patterned superionic material as a stamp, etching a metallic film in a single step.