key enabling catalytic powder materials developed to reduce the dependence on the use of costly platinum group metals (PGMS) in vehicle emission control systems currently undergoing vehicle
The tiny amount of metal used in the spirals means they are not expensive to make-however,
if you shine any kind of radiation on a metal, you get this big flux of low energy electrons coming out. he finding suggests a new avenue for radiation oncology:
At its most basic level, a battery is made of two metal electrodes (an anode and a cathode) with some sort of solution between them (electrolyte.
and plastically deforms to weld the metal together. ach one of these reservoirs, until you open it,
Surface plasmons are confined to the surface of a metal. In order to create wakes through them, Capasso's team designed a faster-than-light running wave of charge along a one-dimensional metamaterial--like a powerboat speeding across a lake.
and flexible electronics. raphene is more conductive than any metal we know of, and it 200 times stronger than steel because of the way the atoms bond to form a hexagonal pattern (think of chicken wire) with a cloud of free electrons hovering above and below it,
and heavy metals, will revolutionize medical device industry. s
#Novel Method Utilizes Nanoparticles and UV Light to Isolate, Extract Contaminants In a new paper published this week in Nature Communications,
#Coral-Like Nanoplates Help Remove Toxic Heavy metals from Water A new material that mimics coral could help remove toxic heavy metals like mercury from the ocean,
Toxic heavy metal ions like mercury, lead and arsenic are released into the water through human activity, including manufacturing and industrial processes.
One major source of toxic metal contamination is the ocean. When mercury pollutes the water
Heavy metals are also toxic to corals: even at low concentrations, small amounts of heavy metal pollution can kill corals.
This heightened toxicity is due to coral being very efficient at collecting, or adsorbing, heavy metals. The researchers behind the new study have taken inspiration from this
and developed a device that mimics the way coral adsorbs heavy metals. Dr. Xianbiao Wang and colleagues have made coral-like nanoplates using aluminium oxide,
with the aim of adsorbing mercury from water. Aluminium oxide has previously been used to remove pollutants,
The advance offers a pathway for industries to wean themselves off of platinum, one of the scarcest metals in the earth's crust.
In an effort to reduce the catalysis world's dependence on this highly reactive and versatile--but also quite expensive--metal,
with the ultimate goal of replacing platinum and palladium with more affordable metals.""This demonstrates a completely new concept about how you can make materials that would utilize a minimal amount of precious metals,
"Mavrikakis says.""Platinum is likely the most widely used catalyst in the chemical industry, which means that using less of it helps make that industry more sustainable."
Arizona State university and Xiamen University in China have developed a new fabrication method that minimizes the need for expensive metal to induce catalytic activity in fuel cell applications.
The amount of precious metal that does not support the reaction is reduced through the hollowing out process.
The secret behind the new technology is a process of growing infrared-detecting crystals called Metal Organic Vapour Phase Epitaxial (or OVPE
Metals and even glass can also be used. So, we're talking about small routine parts here, rather than large structures-at the moment.
and plastically deforms to weld the metal together. ach one of these reservoirs, until you open it,
Previous research has evaluated the use of microneedles made of silicon or metal but they were shown not to be safe.
This created hollow tubes suitable for the addition of a liquid metal. For initial studies, silver was used to fill the tubes via nano-injection.
It can be inflated in less than one second by pulling a metal lever and triggering the CO2 cylinder to fill the balloon,
New alloy has highest melting point of any known metal at 4, 126°C a new material with a higher melting point than any other known substance has been invented by scientists.
460°F)- two thirds the temperature of the surface of the sun. The extreme melting point makes the metal a candidate for creating a real-life version of adamantium the almost indestructible fictional metal used to make Wolverine's claws in the X-men
Most metals require high temperatures to melt because they have stable molecular structures that require a lot of energy to break.
over the uneven metal layers. his is had why we to find a means of filling in
whose electronic properties are similar to those of metals, black arsenic phosphorus behaves like a semiconductor.
whose electronic properties are similar to those of metals, black arsenic phosphorus behaves like a semiconductor.
In contrast to the unidirectional current flow of electrons in a regular metal, a material that behaves as a opological insulatorwould be useful in several spintronic applications.
#Researchers developed hydrophobic metals using laser Engineers have spent decades studying super-hydrophobic surfaces because of the plethora of real-life applications.
Researchers from the University of Rochester have developed a method to make metals hydrophobic or waterproof when they are treated with lasers.
#How lasers make metal super water repellent Scientists have used lasers to turn metals into extremely water repellent materials without the need for temporary coatings.
-and nanoscale structures to give the metals their new properties. This work builds on earlier research by the team in which they used a similar laser-patterning technique that turned metals black.
Guo says that with this technique, they can create multifunctional surfaces that are not only super-hydrophobic but also highly-absorbent optically.
Guo adds that one of the big advantages of his team process is that he structures created by our laser on the metals are intrinsically part of the material surface.
And it is these patterns that make the metals repel water. he material is so strongly water-repellent,
Unlike Guo laser-treated metals, the Teflon kitchen tools are not super-hydrophobic. The difference is that to make water to roll off a Teflon coated material,
You can make water roll off Guo metals by tilting them less than five degrees. As the water bounces off the super-hydrophobic surfaces
but ultra-short laser pulses to change the surface of the metals. A femtosecond laser pulse lasts on the order of a quadrillionth of a second
MULTIFUNCTIONAL METALS Guo is keen to stress that this same technique can give rise to multifunctional metals.
Metals are naturally excellent reflectors of light. That why they appear to have a shiny luster.
The combination of light-absorbing properties with making metals water repellent could lead to more efficient solar absorbersolar absorbers that don rust
and metal the material has a special superconducting property at very low temperatures. The superconductor in this case is aluminium.
The atoms sit in a perfectly ordered lattice in the nanowire crystal not only in the semiconductor and the metal but also in the transition between the two very different components which is significant in itself explains Peter Krogstrup an assistant professor who helped develop the contact.
Previous research has evaluated the use of microneedles made of silicon or metal, but they were shown not to be safe.
or the interaction between light and free electrons on a metal's surface. When exposed to light,
gold is a popular metal for plasmonic photothermal heating since it is extremely efficient at absorbing light.
#3d printing breakthrough creates metal and copper structures The method developed at the University of Twente in The netherlands involves microscopic drops created from a thin metal film that is melted by a pulsed laser.
The key to this breakthrough in printing metals seems to be using a higher energy laser than in previous attempts.
creating drops of metal that maintained a more spherical shape and led to the creation of a stack that was less stable.
The team plans to look into this effect to improve printing capability not just in metals
Other efforts around the globe to print metals are also beginning to bear fruit, including hopes to exploit Australia's plentiful titanium reserves.
The key to this breakthrough in printing metals seems to be using a higher energy laser than in previous attempts.
creating drops of metal that maintained a more spherical shape and led to the creation of a stack that was less stable.
The team plans to look into this effect to improve printing capability not just in metals
Other efforts around the globe to print metals are also beginning to bear fruit, including hopes to exploit Australia's plentiful titanium reserves.
which is a compound of transition metal niobium and phosphorus, dramatically increases its resistance in a magnetic field.
and threads of metal soldered onto the surface) to exploit a phenomenon known as magnetoresistance to develop a high electric resistance,
#Metal foams could provide lightweight radiation shielding Radiation generally comes under the heading of"things you want to stay away from,
so a North carolina State university team is developing a new lightweight shielding based on foam metals that can block X-rays, gamma rays,
foam metals have been around for over a century. In its simplest form a foam is made by bubbling a gas through molten metal to form a light froth that cools into a lightweight matrix.
This produces a foam that is lighter than conventional metals, but has comparable strength. Foams can also be made by milling or 3d printing,
but whatever the method, they are expensive and difficult to manufacture, so their uses are restricted to very specialized applications, such as spacecraft or advanced cooling systems.
The new foam metal being developed by the NC State team led by Afsaneh Rabiei, a professor of mechanical and aerospace engineering, was created originally as a strong,
According to the team, the foam metal was subjected to multiple tests, which showed that it was effective in blocking X-rays, various forms of higher and lower energy gamma rays, and neutron radiation.
"We are working to modify the composition of the metal foam to be even more effective than lead at blocking X-rays
In addition, the extraordinary mechanical and thermal properties of composite metal foams, and their energy absorption capabilities, make the material a good candidate for various nuclear structural applications. n
#Synthetic material mimics coral's ocean-cleaning attributes Researchers from China's Anhui Jianzhu University have developed a synthetic substance that mimics coral's ability to collect harmful heavy metals from water.
and even low levels of heavy metals can prove fatal. While this attribute is unfortunate for the coral,
That coated metal foil then has to be dried in a series of ovens, before it sent off for further processing,
By placing a positive or negative electrical voltage across the interface between the liquid metal and an electrolyte,
they found that they could cause the liquid metal to spread (flow into a capillary)
and radiation pattern. sing a liquid metal such as eutectic gallium and indium that can change its shape allows us to modify antenna properties such as frequency more dramatically than is possible with a fixed conductor,
The positive voltage lectrochemically deposits an oxide on the surface of the metal that lowers the surface tension,
These differences in surface tension dictate which direction the metal will flow. This advance makes it possible to emove
or regenerate enough of the xide skinwith an applied voltage to make the liquid metal flow into or out of the capillary.
which is much like an electrochemical pump for the liquid metal, Adams noted. Although antenna properties can be reconfigured to some extent by using solid conductors with electronic switches,
the liquid metal approach greatly increases the range over which the antenna operating frequency can be tuned. ur antenna prototype using liquid metal can tune over a range of at least two times greater than systems using electronic switches,
he pointed out. Previous liquid-metal designs typically required external pumps that can be integrated easily into electronic systems.
Liquid metal systems ield a larger range of tuning than conventional reconfigurable antennas, and the same approach can be applied to other components such as tunable filters,
In the long term, Adams and colleagues hope to gain greater control of the shape of the liquid metal in two-dimensional surfaces to obtain nearly any desired antenna shape. his would enable enormous flexibility in the electromagnetic properties of the antenna
The electronics that ecoatm reclaims can be mined for the valuable and rare metals they contain.
and it is nearly impossible for these printers to produce semiconductors or single crystalline metals,
springy metal interconnect coils and antennas for soft electronic devices designed to integrate with the human body,
Because of the tiny quantities of metal actually used, they can be made inexpensively out of precious metals,
and energy to move around until it found its preferred spot in the metal crystalline structure.
the highest strengths ever measured in that crystal structure of metal so theye going to be attractive to use in all sorts of devices
Surface plasmons are confined to the surface of a metal. In order to create wakes through them, Capasso's team designed a faster-than-light running wave of charge along a one-dimensional metamaterialike a powerboat speeding across a lake.
Typically, scientists who study these circuits have to choose between injecting drugs through bulky metal tubes
Metals at atomic scale March 2nd, 2015waterloo invention advances quantum computing research: New device, which will be used in labs around the world to develop quantum technologies,
and other novel lower dimensional materials. 2d materials such as graphene and few-layer transition metal dichalcogenides (TMDCS) have been attracting a lot of research interest in recent years
"Any time you use a nanoscale emitter to perform super-resolution imaging near a metal
EEJA), which operates the Tanaka Precious metals Group's plating business, together with Professor Junichi Takeya of the University of Tokyo's Graduate school of Frontier Sciences, has achieved the world's first success in the development of technology for the simultaneous formation of contact electrodes for p-type and n-type*1
The metal that is easier to be injected with a charge varies depending on whether it is a p-type or n-type.*
Holding company of Tanaka Precious metals) Headquarters: 22f, Tokyo Building, 2-7-3 Marunouchi, Chiyoda-ku, Tokyo Representative:
import and export of precious metals (platinum, gold, silver, and others) and various types of industrial precious metals products.
Recycling and refining of precious metals. Website: http://www. tanaka. co. jp/english (Tanaka Precious metals), http://pro. tanaka. co. jp/en (Industrial products) Electroplating Engineers of Japan Ltd.
EEJA) Head office: 5-50 Shinmachi, Hiratsuka-shi, Kanagawa Representative: Koichiro Tanaka, President & CEO Established:
1965 Capital: 100 million yen Employees: 94 (FY2013) Sales: 23,360 million yen (FY2013) Areas of Business:
1. Development, production, sales and export of Sel-Rex precious metal and base metal plating solutions, additives,
www. eeja. com/About the Tanaka Precious metals Established in 1885, the Tanaka Precious metals has built a diversified range of business activities focused on the use of precious metals.
On April 1, 2010, the group was reorganized with Tanaka Holdings Co.,Ltd. as the holding company (parent company) of the Tanaka Precious metals.
In addition to strengthening corporate governance, the company aims to improve overall service to customers by ensuring efficient management and dynamic execution of operations.
Tanaka Precious metals is committed, as a specialist corporate entity, to providing a diverse range of products through cooperation among group companies.
Tanaka Precious metals is in the top class in Japan in terms of the volume of precious metal handled
and stably supplied industrial precious metals, in addition to providing accessories and savings commodities utilizing precious metals. As precious metal professionals, the Group will continue to contribute to enriching people's lives in the future.
The eight core companies in the Tanaka Precious metals are as follows. -Tanaka Holdings Co.,Ltd. pure holding company)- Tanaka Kikinzoku Kogyo K. K.-Tanaka Kikinzoku Hanbai K. K.-Tanaka Kikinzoku International K. K.-Tanaka Denshi Kogyo
K. K.-Electroplating Engineers of Japan, Limited-Tanaka Kikinzoku Jewelry K. K.-Tanaka Kikinzoku Business Service K. K K
#Nanotechnology Raises Possibility to Produce Strongest Commercial Pure Aluminum Alloy Iranian researchers from Amirkabir University of Technology in association with Spanish researchers presented a new process to obtain highly strong
automobile manufacturing and all industries related to aluminum and light metals. Novel technologies take step towards the production of lighter but stronger alloys to save energy.
but growing Bi2pt2o7 directly as a film requires oxidizing the platinum metal--a challenging step.
Conventional materials used today to shield from incoming electromagnetic waves tend to be sheets of metal or composites,
Because of the tiny quantities of metal actually used they can be made inexpensively out of precious metals,
which resist chemical degradation. They can also be made on plastic, paper and a number of other substrates."
A wide range of reactive or conductive metals can be used, including platinum, gold, and palladium.
"We can stack metals on insulators, too, embedding different functional properties and interactions within one lattice structure."
which endow them with several advantages compared to traditional metal-based metamaterials. The key advantages include enormous degree of tunability, relatively low losses,
which contains impurities (e g. carbon monoxide) that poison precious metal catalysts (e g. platinum) only at low temperatures (less than 120°C)
#Measurement of Tiny Amounts of Heavy metals in Baby Food Samples Abstract: Iranian researchers produced a nanosorbent that can adsorb
and measure small amounts of heavy metals in children food samples. The nanosorbent has speed high and accuracy and can be produced through a cost-effective method.
and measurement of heavy metals in foodstuff and environmental samples to reduce and eliminate the chemical harms caused by metals.
Detection and measurement of cadmium is very important among all different metals. In addition, although small amounts of zinc is necessary to the body
its high concentration causes digestive malfunctions and results in the related diseases due to its toxicity.
Therefore, the researchers focused on the detection of these metals, specially in foodstuff that are complicated very in terms of measurement.
Magnetic organometallic framework (MOF) nanocomposite has been used to selectively separate these metals from the foodstuff and their pre-concentration.
and measure heavy metals. Among the most important advantages of this nanosorbent, mention can be made of reducing the cost of food sample evaluation,
The embedded metal ions in the Ni1-xcuxcr2o4 spinel system cause a distortion of the crystal structure.
as temperature-induced damage, strains, metal spiking and unintentional diffusion of dopants may occur.""Thus, although the conventional graphene fabrication method of chemical vapor deposition is used widely for the large-area synthesis of graphene on copper and nickel films,
#Rice university finding could lead to cheap, efficient metal-based solar cells: Plasmonics study suggests how to maximize production of'hot electrons'Abstract:
or nanostructure is that you can excite some subset of electrons in the metal to a much higher energy level,
or to drive chemical reactions on otherwise inert metal surfaces. Today's most efficient photovoltaic cells use a combination of semiconductors that are made from rare and expensive elements like gallium and indium.
and subsequently, these metals, if they are contained in the food, can be detected by sensing their magnetic fields using SQUID sensors.
or through the use of symmetric molecules with different metals as the two electrodes. However, the resulting asymmetric junctions yielded low rectification ratios,
Most commercial RFID tags are made from metals like aluminium and copper, Huang said, expensive materials with complicated fabrication processes that increase the cost."
#Exciton, exciton on the wall Researchers have observed, in metals for the first time, transient excitons the primary response of free electrons to light.
Here, the researchers discovered that the surface electrons of silver crystals can maintain the excitonic state more than 100 times longer than for the bulk metal,
Detecting excitons in metals could provide clues on how light is converted into electrical and chemical energy in solar cells and plants.
This research may also provide ways to alter the function of metals in order to develop active elements for technologies such as optical communications by controlling how light is reflected from a metal.
The act of looking in a mirror is an everyday experience, but the quantum mechanical description behind this familiar phenomenon is still unknown.
the light shakes the metals free electrons and the resulting acceleration of electrons creates a nearly perfect replica of the incident light providing a reflection.
studying and proving how excitons function in metals is difficult because they are extremely short-lived,
For the first time researchers have observed excitons at metallic surfaces that maintain the excitonic state 100 times longer than in the bulk metal,
This discovery sheds light on the primary excitonic response of solids which could allow quantum control of electrons in metals, semiconductors,
It can be used wherever metals are exposed to severe weather conditions, aggressive gases, media containing salt, heavy wear or high pressures.
It is suitable for steels, metal alloys and metals such as aluminum, magnesium and copper, and can be used to coat any shape of plates, pipes, gear wheels, tools or machine parts.
it does not contain chromium VI or other heavy metals. INM conducts research and development to create new materials for today, tomorrow and beyond.
A reproducible molten state of a metal such as platinum could have useful catalytic properties while preserving the integrity and large surface area of the particle.
Because of the tiny quantities of metal actually used, they can be made inexpensively out of precious metals,
simple process for making platinum"nano-raspberries"microscopic clusters of nanoscale particles of the precious metal("Stability and phase transfer of catalytically active platinum nanoparticle suspensions").
the metal is expensive and was used only as a model. The study will actually help guide the search for alternative catalyst materials
#3d printing of metal with microscale droplets A team of researchers from the University of Twente has found a way to 3d print structures of copper and gold,
If metals could be used for 3d printing as well, this would open a wide new range of possibilities.
Metals conduct electricity and heat very well, and they're very robust. Therefore, 3d printing in metals would allow manufacturing of entirely new devices and components,
such as small cooling elements or connections between stacked chips in smartphones. However, metals melt at a high temperature.
This makes controlled deposition of metal droplets highly challenging. Thermally robust nozzles are required to process liquid metals,
but these are hardly available. For small structures in particular (from 100 nanometres to 10 micrometres) no good solutions for this problem existed yet.
This means that the results can be translated readily to other metals as well. One remaining problem is that the high laser energy also results in droplets landing on the substrate next to the desired location.
to enable clean printing with metals, gels, pastas or extremely thick fluids s
#Engineers'synthetic immune organ produces antibodies Cornell engineers have created a functional, synthetic immune organ that produces antibodies
He and his colleagues therefore came up with the idea of investigating a compound consisting of the transition metal niobium (Nb)
A wide range of reactive or conductive metals can be used, including platinum, gold, and palladium.
"We can stack metals on insulators, too, embedding different functional properties and interactions within one lattice structure."
The device, described in a study published June 23 in Nature Communications("Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting"),could provide a renewable source of clean
typically platinum and iridium, two rare and costly metals. But in 2014, Stanford chemist Hongjie Dai developed a water splitter made of inexpensive nickel and iron that runs on an ordinary 1. 5-volt battery.
is actually more stable than some commercial catalysts made of precious metals.''We built a conventional water splitter with two benchmark catalysts, one platinum and one iridium,
At its most basic level, a battery is made of two metal electrodes (an anode and a cathode) with some sort of solution between them (electrolyte.
and plastically deforms to weld the metal together. Each one of these reservoirs, until you open it,
which unlike metals do not absorb light. This cloak includes two dielectrics, a proprietary ceramic and Teflon,
'Using widely-available polycrystalline metals in this way can open up many possibilities for cost-reduction and larger-scale graphene production for applications where very high quality graphene is needed.'
as temperature-induced damage, strains, metal spiking and unintentional diffusion of dopants may occur.""Thus, although the conventional graphene fabrication method of chemical vapor deposition is used widely for the large-area synthesis of graphene on copper and nickel films,
"The inclusion of a noble metal like silver in the ultraviolet-responsive Tio2 has extended significantly the spectrum towards the visible light through localized surface plasmon resonance effects,
You can use either a paramagnetic metal or a paramagnetic insulator to do it now
#Superfast fluorescence sets new speed record (Nanowerk News) Researchers have developed an ultrafast light-emitting device that can flip on and off 90 billion times a second
a quality found normally in metals and new"metamaterials, "which contain features, patterns or elements that enable unprecedented control of light by harnessing clouds of electrons called surface plasmons.
Doping the zinc oxide causes it to behave like a metal at certain wavelengths and like a dielectric at other wavelengths.
or is shot down there is no terrible news to pass to the families of the aircrew just a pile of crumpled metal.
this project will utilize 3ds's Direct Metal Printing technology as well as the additive manufacturing and materials expertise of Penn State's Center for Innovative Materials Processing through Direct Digital Deposition (CIMP-3d).
and Direct Metal 3d printing capabilities to meet the high standards of production demanded by the US Air force.
aerospace and defense manufacturers are expected to gain full control of the direct metal manufacturing process at the layer level,
delivering"fully dense, chemically-pure, flightworthy metals parts
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