Sentences with phrase «electrode materials for»

«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.

PNNL's expertise in materials synthesis and processing will also contribute to the development of low - cost, high - capacity electrode materials for advanced batteries with unprecedented energy density and power.

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

In the first practical application for the machine learning, the team worked with Assistant Professor Jim Cahoon, Ph.D., in the UNC Department of Chemistry to design a new electrode material for a type of low - cost solar cells.

Not exact matches

The gold - polyurethane material could someday be used in the form of implantable electrodes in the brain for treating movement disorders or in the heart to help regulate cardiac activity.

To find catalytic material suitable for both electrodes, the Stanford team borrowed a technique used in battery research called lithium - induced electrochemical tuning.

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.»

«There are quite a few technical hurdles to overcome, including finding materials that are good electrodes for multivalent ions.

«Researchers developed manufacturing method for batteries with organic electrode materials.»

280 °C, which is a trait that is highly desired for an electrode material, but rather unusual for hybrid organic?inorganic thin films.

Phase evolution for conversion reaction electrodes in lithium - ion batteries Surface reconstruction and chemical evolution of stoichiometric layered cathode materials for lithium - ion batteries

Unlike traditional supercapacitors, which use the same material for both electrodes, the anode and cathode in an asymmetric supercapacitor are made up of different materials.

Testing showed the material makes an ideal electrode for highly efficient energy storage.

And what we do is, through kind of a combination, directed evolution and selection, kind of a Darwinian process, we force these viruses or encourage these viruses to work with materials that we are interested in — semiconductor materials and metal oxide materials for electrodes.

But since the material that will be needed for the electrode in these batteries is a mixture of the two, it may be possible to save on the initial materials costs by using «lower» grades of the two metals that already contain some of the other.

In order to implant such electrodes, the researchers have developed a technique for encapsulating the electrodes in a hard but dissolvable gelatine material that is also very gentle on the brain.

Next they scrape the accumulated materials off the electrode, melt them down, cast them into an ingot and pass the ingot to a refabrication line for conversion into fast - reactor fuel.

High electrical conductivity and large accessible surface area, which are required for ideal electrode materials in energy devices, are opposed to each other in current materials.

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

Standard rechargeable batteries are only marginally suited for high performance: «To raise the energy density, you need to increase the voltage or the capacity, and that is where traditional electrode materials and electrolytic fluids reach their limits,» explains the physicist.

For example, engineers are experimenting with special electrode materials that can provide a voltage of nearly 5 volts, instead of the current maximum of 4.2 to 4.3 volts.

Kensuke Kobayashi (Professor, Graduate School of Science, Osaka University) and Sadashige Matsuo (Assistant Professor, Graduate School of Engineering, The University of Tokyo), in cooperation with research groups led by Teruo Ono (Professor, Institute for Chemical Research, Kyoto University) and Kazuhito Tsukagoshi (Research Fellow, International Center for Materials Nanoarchitectonics, National Institute for Materials Science), produced graphene samples capable of forming p - n junctions by combining gate electrodes and performed precise measurements of current - fluctuation («shot noise») in the graphene p - n junction in the QH regime in the strong magnetic fields and at low temperatures.

One key to achieving efficient semitransparent solar cells is to develop a transparent electrode for the cell's uppermost layer that is compatible with the photoactive material.

«Most negative electrodes for sodium - ion batteries use materials that undergo an «alloying» reaction with sodium,» Singh said.

Nanostructured materials have shown extraordinary promise for electrochemical energy storage, but these materials are usually limited to laboratory cells with ultrathin electrodes and very low mass loadings.

We had to develop the membranes, the conducting plastic for the electrodes, the structures, the materials, the designs, the control systems — everything!»

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

«One of the direct benefits of utilizing such materials for both electrodes in the battery is that neither of the two electrodes fundamentally limits the power capability, cycle life, or cost of the device,» said Colin Wessells, CEO at Natron Energy.

In addition to memory devices, the material could ultimately find applications in fuel cells and electrodes for lithium ion batteries, Lu says.

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.

«An added requirement for a well - behaved (that is, long - lived) rechargeable battery is that not only must the electrochemical oxidation - reduction reactions be reversible, they must also return the electrode materials to their original physical state.

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

In nickel - cadmium (NiCad) batteries, for example, the Cd (OH) 2 and Ni (OH) 2 that are formed during cell discharge are readily converted back to the original electrode materials (Cd and NiOOH), when the cell is recharged.

Materials like this can be used for fuel cell electrodes, with far lower costs than the current ones.

INL capability experts in this area have a long history in developing electrode and electrolyte materials for various fuel cells using both conventional and high - throughput methodologies.

about Advanced Electrode and Solid Electrolyte Materials for Elevated Temperature Water Electrolysis

Growing a material directly on the surface eliminates steps in testing new ideas for electrodes or catalysts.

In 2012, DOE established the Joint Center for Energy Storage Resarch (JCESR), a DOE Energy Innovation Hub, which significantly enhanced the Materials Project with new simulations of next - generation battery electrodes and liquid organic electrolytes.

«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.

Creating the electrodes needed for these technologies demands rational design, building the material rather than discovering it through trial and error.

Designed at Pacific Northwest National Laboratory, a new device shows what happens where the electrolyte and active material in the electrode meet; this fundamental research has implications for energy storage, generation, and chemical manufacturing technology.

Scientists in the consortium will be studying different materials that could be used for a lithium - metal battery's positive electrode, while working to prevent unwanted chemical reactions that could impair the battery's performance.

«The pellet material is stronger and lighter than commercial graphite electrodes and could be promising for electrical storage applications with high energy and power densities,» he said.

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.

Once we fabricate electrodes and measure their surface areas, we use a suite of characterization methods to determine unknown semiconductor properties by the following procedure: We determine the conductivity type of an unknown material by monitoring the open - circuit potential response upon illumination, which is important to establish the reverse - bias conditions used for all subsequent testing.

The research team, which consists of graduates and undergraduates in Vanderbilt's interdisciplinary materials science program and department of mechanical engineering, describe this achievement in a paper titled «From the Junkyard to the Power Grid: Ambient Processing of Scrap Metals into Nanostructured Electrodes for Ultrafast Rechargeable Batteries» published online this week in the journal ACS Energy Letters.

Dr. Rosso's current projects include the following: (1) characterizing the kinetics and mechanisms of elementary charge and ion transport processes in redox transformation of iron oxide minerals, (2) predicting molecular - scale electron transfer kinetics in microbially - mediated reduction of bioavailable iron in subsurface environments, (3) studying mechanisms of heterogeneous reduction of contaminant U (VI) and Tc (VII) by Fe (II)- bearing minerals, (4) simulation of coupled charge and ion transport in transition metal oxide electrodes for advanced materials applications, (5) probing mechanisms and kinetics of mineral transformation to metal carbonates for geological carbon sequestration, and (6) studying mechanisms of uptake and retention of uranium in sediments.

The IFE Battery Material Laboratory was established in 2010 and has facilities for manufacturing and testing battery materials and electrodes

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.

As for applications, «the graphene market isn't one size fits all», says Coleman, but the researchers report testing it as the electrode materials in solar cells and batteries.