Sentences with phrase «as electrodes for»

By employing proprietary pretreatment and processing, researchers at Oak Ridge National Laboratory and Drexel University have produced flexible polymer carbon composite films from scrap tires for use as electrodes for supercapacitors.

Now, Singapore - based researchers have developed improved catalysts as electrodes for efficient and more durable green energy devices.

Furthermore, the scientists proved the device's mechanical durability through repeated bending and stretching, exceeding 10,000 times, of a conductor attached on the forefinger; they also established its reliability as an electrode for electromyogram recordings when its readings of the electrical activity of muscles were comparable to those obtained through conventional gel electrodes.

Not exact matches

This structure is key to their potential for being used as electrode materials for lithium - sulfur batteries.

Having the electrode in the form of tiny suspended particles instead of consolidated slabs greatly reduces the path length for charged particles as they move through the material — a property known as «tortuosity.»

For the past eight years, he and his colleagues have been studying epilepsy patients who have had electrodes implanted in a region of their brains called the medial temporal lobe, as part of a study to identify the source of their seizures.

«Our electrodes are freestanding, thus eliminating the need for binders, whose processing can account for as much as 20 percent of the cost of manufacturing an electrode.»

In 1990, Garnier's team unveiled a transistor made mostly from plastics; but this still needed some metallic components, such as gold and silver for the electrodes (Technology, 15 December 1990).

«Being able to tell if there is a tendency for a reaction to take place in a specific part of the electrode, and better yet, the location of reactions within individual nanoparticles in the electrode, would be extremely useful because then you could understand how those localized reactions correlate with the behavior of the battery, such as its charging time or the number of recharge cycles it can undergo efficiently,» Cabana said.

One group turned to an electrochemical approach, which can be adapted for in - the - field use, but their technique involved toxic mercury as the electrode.

For power generation, the thread or «fiber - shaped fluidic nanogenerator» (FFNG), as the authors call it, was connected to electrodes and immersed into flowing water or simply repeatedly dipped into a saline solution.

But manufacturers of high - energy applications such as electric cars and power storage systems seek for new electrode materials and electrolytes.

Would it be cheating for a tennis player to wear a portable electrode as she practiced her serve?

The current isn't much (about 30 milliwatts from an electrode the size of a manhole cover), but it flows indefinitely, and for free — ideal, he suggests, for running low - power seafloor devices, such as ocean - monitoring instruments.

Furthermore, the process is easily scalable for creating large - area films which will be highly useful as electrodes and membranes for energy generation or storage.

But for all their perceived advantages, magnesium batteries have proven too good to be true since they were first proposed in the 1990s and essentially sidelined by a variety of problems; primarily, the lack of a suitable cathode, or positive electrode — otherwise known as the part of a battery where the magnesium ions enter during discharge of the battery to power an electronic device and then exit during charging.

When the electrodes and the active layer are printed as thin films on top of each other, defects in one layer will act as points of attack for the next layer to be printed.

The electrodes allowed them to record the activity of large groups of individual neurons as the animals moved their hands and reached for food.

Fine - tuning becomes critically important as materials scientists test more 2 - D materials like graphene and nanotubes for use as electrodes.

Further, the interleaved and porous structure of the paper electrode offers smooth channels for sodium to diffuse in and out as the cell is charged and discharged quickly.

Schematic shows the configuration for structural phase transition on a molybdenum ditelluride monolayer (MoTe2, shown as yellow and blue spheres), which is anchored by a metal electrodes (top gate and ground).

The device developed at UCLA has a third electrode that acts as both a supercapacitor, which stores energy, and as a device for splitting water into hydrogen and oxygen, a process called water electrolysis.

Using an onboard source of energy (such as a battery, ultracapacitor, solar panel or any combination thereof), the electrodes will send an electrical current into the plasma, causing the plasma to push against the neutral (noncharged) air surrounding the craft, theoretically generating enough force for liftoff and movement in different directions (depending on where on the craft's surface you direct the electrical current).

In the lab, they adapted the standard experimental technique for studying place cells: implanting electrodes directly into a rat's hippocampus and recording from them as the animal runs freely in a large box (see «A sense of place»).

By applying the method developed in this research, measurement of the negative ion flow at places still closer to the plasma electrode is possible for clarifying more detailed mechanism of the negative ions extracted as a beam.

Strontium cobaltites are just one example of a class of materials known as transition metal oxides, which is considered promising for a variety of applications including electrodes in fuel cells, membranes that allow oxygen to pass through for gas separation, and electronic devices such as memristors — a form of nonvolatile, ultrafast, and energy - efficient memory device.

Such qualities make them suitable for storing electric charge in batteries and supercapacitors, and as catalysts in solar and fuel - cell electrodes.

The researchers viewed the porous, conductive material as a perfect electrode for supercapacitors or electronic circuits.

Since then more than 100 of his epileptic patients with electrodes implanted in their brains for diagnostic purposes have volunteered as subjects for basic research.

The answer to this question has been slow in coming, as the tufted cells are extremely small — much too small for sticking an electrode into them and capturing their electrical signals.

Electrodes implanted in the brain that electrically stimulate specific regions are now being tested as treatments for depression and other mental illnesses; conceivably this technology also could be used to induce mystical states.

Other methods of interfacing with the brain via electrodes include those put on the scalp for electroencephalography (EEG) and ones placed under the skull on the brain's surface, known as electrocorticography (ECoG).

To build the map, Mesgarani's team turned to a group of volunteers who already had electrodes implanted in their brains as part of an unrelated treatment for epilepsy.

In this application, a nanotube film with an array of electrodes can be used as an electrically configurable diffraction grating for an infrared spectrometer, allowing the wavelength of light to be scanned without moving parts.

«We believe that the crumpled graphene surfaces can be used as higher surface area electrodes for battery and supercapacitor applications.

Noninvasive brain stimulation is having its heyday, as scientists and hobbyists alike look for ways to change the activity of neurons without cutting into the brain and implanting electrodes.

Robinson, J.T., Jorgolli, M., Shalek, A.K., Yoon, M.H., Gertner, R.S., and Park, H., «Vertical Nanowire Electrode Arrays as a Scalable Platform for Intracellular Interfacing to Neuronal Circuits,» Nature Nanotech.

Such instruments utilise a wide range of state - of - the - art technology such as sensors, detectors and pick - up electrodes, ultra-high vacuum, precision mechanics, optics, electronics for conditioning, treatment, acquisition and control of signals, and computer science.

Low - energy electrons will be filtered as they travel through a series of electrodes placed within the vacuum chamber as the magnetic field first dips in strength and then rises again as the electrons enter the second magnet, leaving only the highest - energy electrons for the calorimeter to analyze.

«This is a tremendous innovation for in situ studies as a new means to interrogate the chemical language of microbial system interactions, as well as being relative to the discovery and development of new electrode materials for energy storage,» said Dr. Louis Terminello, who leads chemical imaging work at PNNL.

«If we use the results of this paper [published in the Journal of Physical Chemistry B], we can grow nanoparticles in the confined matter to create larger, uniformly sized nanoparticles of metal oxides, such as titanium dioxide, which is very important to creating the materials you need for electrodes for batteries,» said Sushko.

Preparation and characterization of superporous agarose — reticulated vitreous carbon electrodes as platforms for electrochemical bioassays.

N - Heterocyclic carbenes as promoters for the heterogeneous reduction of CO2 at metal electrodes.

The paper PSCs were developed with a low - temperature Paper / Au / SnO2 / meso - TiO2 / CH3NH3PbI3 / Spiro - OMeTAD / MoOx / Au / MoOx architecture utilizing a Au / SnO2 and MoOx / Au / MoOx stack as electron - and hole - extracting electrodes respectively, delivering state of the art power conversion efficiency of 2.7 % for solar cells prepared directly on the opaque paper substrate.

To make these batteries more stable, researchers have traditionally worked to develop protective coatings for their electrodes, and to develop new polymer binders that act as the glue holding battery components together.

This webinar aims to highlight the benefits of correlative Raman imaging for the analysis of chemical composition, crystallinity, stress and optoelectronic properties of materials such as semiconductors, 2D materials and electrodes.

Research at the PPPL Laboratory for Plasma Nanosynthesis develops new insight into the use of plasma to synthesize nanomaterials — particles such as carbon nanotubes that are measured in billionths of a meter, are found in everything from swimwear to electrodes and have a tensile strength, or resistance to breaking when stretched, that is stronger than steel.

In this study, a chronically stable class of thin ‐ film devices for electrocorticography is manufactured incorporating silicon carbide and diamond ‐ like carbon as adhesion promoters between glassy carbon (GC) electrodes and polyimide and between GC and platinum traces.

Though the value of m / e came out the same whatever the material of the electrode, the appearance of the discharge varied greatly; and as the measurements showed, the potential - difference between the cathode and anode depended greatly upon the metal used for the electrode; the pressure being the same in all cases.

Mehdi was chosen for her research into the protective and eventually smothering layer, known as the solid - electrolyte interphase (SEI) layer, that forms around a lithium - ion battery's electrode.