Articles tagged with Electrochemical Currents
Researchers have developed solid-state batteries that can charge in a fraction of the time and pack more energy into less space than traditional lithium-ion versions. These batteries use stable solid materials instead of liquid electrolytes, enabling faster charging, reduced safety risks, and improved efficiency.
The grant aims to develop an electrochemical system capable of recovering uranium from wastewater, improving ecosystem health and addressing uranium security. The project will focus on designing electrode materials for efficient uranium extraction and minimizing toxic waste.
Scientists have developed a novel synthesis method for trivalent phosphorus compounds, leveraging an adduct-catalyzed tandem electro-thermal approach to produce high-yielding organophosphorus compounds with improved efficiency and selectivity. The approach also enables the in-situ consumption of renewable energy sources.
A team at Zhejiang University developed a novel strategy for early detection of high-altitude hypoxic brain injury using changes in oxygen content in brain regions over time. They found that brain regions with higher tolerance for hypoxia received less oxygen to support supply to more important areas.
KAIST researchers developed a new electrochemical impedance spectroscopy (EIS) technology using small currents to diagnose electric vehicle batteries with high precision. This low-current EIS system minimizes thermal effects and safety issues during measurement, making it suitable for integration into vehicles.
Dr. Abdoulaye Djire, a Texas A&M chemical engineer, has received the Army Research Office Early Career Award for his research on electrochemical ammonia production. His project aims to develop more efficient and environmentally friendly methods for producing ammonia using 2D nanostructured nitride MXenes.
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 at Pohang University of Science & Technology have developed a novel analog hardware using ECRAM devices that maximizes AI computational performance. Their technique, which uses a three-terminal structure with separate paths for reading and writing data, demonstrates excellent electrical and switching characteristics.
Researchers at the University of Washington have solved a long-standing chemical mystery in organic electrochemical transistors (OECTs), which allow current to flow in devices like implantable biosensors. The study reveals that OECTs turn on via a two-step process, causing a lag, and off through a simpler one-step process.
Researchers from GIST have developed a new electrode using Schottky junctions to overcome the conductance limit of active catalysts, achieving high-performance water splitting and hydrogen evolution reactions. The electrode demonstrated remarkable current density and durability during continuous operation for 10 days.
Researchers have developed a novel chloride-based solid electrolyte with exceptional ionic conductivity, addressing material limitations that hindered previous attempts. This breakthrough is expected to pave the way for commercialization of solid-state batteries, promising improved affordability and safety.
Chung-Ang University researchers create an electrochemical DNA biosensor that detects HPV-16 and HPV-18 with high specificity, facilitating early diagnosis of cervical cancer. The sensor uses a graphitic nano-onion/MoS2 nanosheet composite to enhance conductivity.
Researchers from The University of Warwick and The University of Manchester have solved the long-standing puzzle of why graphene is permeable to protons. Protons are strongly accelerated around nanoscale wrinkles in perfect graphene crystals, which could lead to more sustainable hydrogen production.
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 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 from Dalian Institute of Chemical Physics developed a strategy to inhibit lithium dendrite growth on modified 3D carbon film. Uniform bottom-up Li deposition behavior was achieved, enabling stable lithium stripping/plating cycling up to 4000 hours.
Researchers developed a method to heal and recycle garnet electrolytes with Li dendrite penetration through heat treatment, increasing ionic conductivity and relative density. The recycled pellets showed improved densification and suppressed Li dendrite penetration, enabling higher critical current density.
A bilayer, nonwoven PET microfiber/polyvinylidene fluoride nanofiber membrane acts as a separator for LIB systems and prevents short circuits. The substrate significantly improves the mechanical and thermal properties of solid polymer electrolytes, enabling cells to operate over 2000 hours.
A new method for measuring bifacial solar panel performance has been developed by the University of Ottawa SUNLAB team. The study proposes a characterization method that considers external effects of ground cover like snow, grass, and soil, providing a way to accurately test panel performance indoors.
Researchers at Nanyang Technological University have developed a technique to convert waste paper into lithium-ion battery electrodes, reducing greenhouse gas emissions and increasing durability. The new method uses carbonisation and laser cutting to create reusable batteries with superior properties.
Researchers at UNIST developed superaerophobic polyethyleneimine hydrogels to improve electrochemical hydrogen production by promoting bubble detachment. These hydrogels can be easily coated on electrodes, allowing for controlled pore size and porosity, leading to enhanced performance.
A team of researchers at Harvard University has developed an ionic circuit that performs analog matrix multiplication, a key operation in neural networks, using ions in liquid. The breakthrough uses a pH-gated ionic transistor and expands to a 16x16 array for more complex computations.
Researchers at PNNL have developed a sodium-ion battery with greatly extended longevity in laboratory tests. The new electrolyte recipe stabilizes the protective film on the anode and generates an ultra-thin protective layer, providing long cycle life and stability. This technology has potential for applications in light-duty electric ...
A new electrode design boosts carbon dioxide electroreduction, converting CO2 to CO with 54% efficiency and stable large current densities. The results demonstrate a promising approach for scalable CO2 abatement and renewable energy consumption.
Researchers have identified a biomarker that indicates high risk of impending stroke post-subarachnoid hemorrhage, enabling early treatment initiation in comatose patients. Electrodiagnostic monitoring detects 'spreading depolarizations' caused by toxic by-products of blood breakdown, allowing clinicians to intervene before it's too late.
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 at the University of Bath have developed a novel chemical glucose sensing method based on boronic acids and graphene foam. The new technique can accurately detect lower glucose concentrations than current systems, making it ideal for chronic conditions like diabetes.
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.
Scientists investigated nanoparticle dispersions in aqueous solution to track down capacitance and rearrangement processes at platinum and gold nanoparticles. They found that dissolved ions accumulate between compact water layers, leading to unexpectedly high capacitances.
A team of researchers from Osaka University has developed a simple system based on electrochemical reactions that can perform complex calculations. The system uses polyoxometalate molecules and deionized water to process information and solve nonlinear problems.
Scientists at ORNL developed a scalable, low-cost method to improve materials joining in solid-state batteries, resolving one of the big challenges in commercial development. The electrochemical pulse method increases contact at the interface without detrimental effects, enabling an all-solid-state architecture.
Researchers focus on cathode materials in rechargeable aluminum batteries to improve electrochemical performance. Current studies classify cathode materials into four groups based on ion charge carriers and discuss their respective electrode structures, optimization strategies, and charge storage mechanisms.
Researchers at University of California San Diego have created a flexible, rechargeable silver oxide-zinc battery with areal energy density five to ten times greater than state-of-the-art batteries. The device can be used in wearables and soft robotics.
Sodium-ion batteries have great potential to represent the next generation of low cost and environmentally friendly energy storage solutions. The technology offers attractive properties such as low cost, sustainable precursors, and secure raw material supplies.
A new manganese-based single-atom catalyst has been developed, exhibiting high Faradaic efficiency and current density in electrochemical CO2 reduction. The catalyst outperforms all reported Mn SACs, paving the way for low-cost and efficient conversion of CO2 into useful chemicals.
Researchers synthesized Nb2O5 nanotubes on carbon cloth via a simple hydrothermal process, achieving high reversible capacity of 175 mAh/g and energy density of 195 Wh/kg. The material shows good conductivity, reduced volume expansion, and flexible operation conditions.
Researchers at Tianjin University develop a potential-tuned strategy for efficient synthesis of azoxy, azo- and amino-aromatics via aqueous selective reduction of nitroarene feedstocks over a CoP nanosheet cathode. The method yields products with up to 99% selectivity and 99% yield.
Researchers developed a new type of hydrogen production catalyst with low cost, high catalytic activity, and high stability. The S, N co-doped carbon nanotube-encapsulated CoS2@Co composite exhibits excellent electrocatalytic properties, including rapid water dissociation under various operating currents.
Researchers at Ruhr-University Bochum gained new insight into the processes involving oxygen-depolarised cathodes, which consume less current than conventional systems. They found that reaction conditions change constantly during chlorine production and are not uniform throughout the electrode surface.
Researchers at UNIST have developed a highly stretchable rechargeable lithium-ion battery based on aqueous electrolytes, using a simple and cost-effective solution process. The breakthrough involves a bioinspired Jabuticaba-like hybrid carbon/polymer composite that retains its electrical conductivity under high strain rates.
Researchers developed a new type of cathode that addresses electrochemical stability issues in lithium-oxygen systems. The ultralight all-metal cathode outperforms carbon-based cathodes with higher capacity and improved stability for 286 cycles.
A novel 3D porous aluminum-graphite battery exhibits excellent long-term cycling stability of over 1000 cycles with 89.4% capacity retention at 2C current rate. The design features a uniform carbon layer, alleviating mechanical stress and surface reactions.
Researchers at Imperial College London have developed a new sensor material that can detect biological signals, including heartbeats and brainwaves, with enhanced sensitivity. The material uses an ambipolar design, allowing for the transport of both electrons and holes, which enables improved signal detection in water-based environments.
Researchers at INRS have developed a micro-supercapacitor with unprecedented energy density, exceeding existing electrochemical capacitors by 1,000 times. This innovation combines the strengths of supercapacitors and lithium-ion batteries, making it suitable for various applications.
Researchers at Toyohashi University of Technology developed a novel negative electrode material for Li-ion batteries with improved high power and safety. Vacuum annealing enhances the electronic conductivity of Ti-Nb oxide, leading to better performance at high current rates.
A team of engineers at Washington University in St. Louis will receive $2 million to design a battery management system for lithium-ion batteries, guaranteeing their longevity and safety. The project aims to push the current technology to 100-percent efficiency while maintaining battery lifetime.
Scientists at Case Western Reserve University create an electrochemical cell with a stable plasma electrode, allowing for controlled electron transfer and reducing losses. The technology has the potential to improve battery and fuel cell efficiency and enable new applications such as hydrogen production and nanomaterial synthesis.
Scientists at Arizona State University have developed a new imaging technology that can detect tiny particles of explosives, proteins, and heavy metals. This technique combines optical microscopy with electrochemical detection to provide a detailed map of the surface under study.