Dr Majumder and his team are working with graphite industry partner, Strategic Energy resources Ltd and an expert in polarized light imaging, Dr. Rudolf Oldenbourg from the Marine Biological Laboratory, USA,
exhibited a higher capacity than the theoretical capacity of graphite which was used previously in lithium-ion batteries.
and saw it was made up primarily of quartz, or silicon dioxide. His research is centered on building better lithium ion batteries, primarily for personal electronics and electric vehicles.
Graphite is the current standard material for the anode, but as electronics have become more powerful graphite's ability to be improved has been tapped virtually out.
Researchers are focused now on using silicon at the nanoscale, or billionths of a meter, level as a replacement for graphite.
The problem with nanoscale silicon is that it degrades quickly and is hard to produce in large quantities.
He researched sand to find a spot in the United states where it is found with a high percentage of quartz.
After that, he ground salt and magnesium, both very common elements found dissolved in sea water into the purified quartz.
With the salt acting as a heat absorber, the magnesium worked to remove the oxygen from the quartz,
The researchers made a thin film of graphene oxide by chemically exfoliating graphite into graphene flakes,
And the main ingredient, graphite, is mined and sold by the ton. h
#Nanostructured material based on repeating microscopic units has record-breaking stiffness at low density (w/Video) What's the difference between the Eiffel Tower and the Washington monument?
because its total charge capacity is 10 times higher than commercial graphite based lithium ion battery anodes.
Replacing the commonly used graphite anode with silicon anodes will potentially result in a 63 percent increase of total cell capacity and a battery that is 40 percent lighter and smaller.
and discharge rates nearly 16 times faster than conventionally used graphite based anodes. The researchers believe the ultrafast rate of charge
#Researchers find definitive evidence of how zeolites grow Researchers have found the first definitive evidence of how silicalite-1 (MFI type) zeolites grow showing that growth is concerted a process involving both the attachment of nanoparticles and the addition of molecules.
He and researcher Alexandra I. Lupulescu used a new technique allowing them to view zeolite surface growth in real time a breakthrough Rimer said can be applied to other types of materials as well.
Typically researchers examine zeolite growth by removing crystals from the natural synthesis environment and analyzing changes in their physical properties said Rimer Ernest J. and Barbara M. Henley Assistant professor of Chemical and Biomolecular engineering at UH.
That has made understanding the fundamental mechanism of zeolite growth more challenging. Zeolites occur naturally but can also be manufactured.
This research involved silicalite-1 a synthetic aluminum-free zeolite that has served as a prototype in literature for studying zeolite growth.
For more than two decades researchers have theorized that nanoparticles which are known to be present in zeolite growth solutions played a role in the growth
but there was no direct evidence. And while most crystals grow through classical means the addition of atoms
or molecules to the crystal the presence and gradual consumption of nanoparticles suggested a nonclassical pathway for zeolite crystallization.
The team previously made a prototype all-liquid battery filled with magnesium and an element called antimony.
and antimony mixed with lead. It has compared some advantages to its predecessor. Mixing the antimony with lead makes the materials cheaper.
Plus the battery can be kept at lower temperatures. It works at 450 degrees Celsius versus 700 degrees Celsius.
For Quartz Harris reported on Google's lobbying not to have to report#how often its cars turn over the controls to their human drivers
when used in solar cells made with organolead halide perovskite film a compound that is fast becoming competitive with silicon in solar power technology.
The group's work demonstrates that the perovskite created from the lead in just one old car battery could provide materials for 30 households-worth of solar energy cells.
Perovskite solar panels are also less energy-intensive to build compared to silicon-based cells and the leaded film would be contained completely within other materials.
The research Environmentally-responsible fabrication of efficient perovskite solar cells from recycled car batteries was published recently online by the journal Energy and Environmental science.
The spongey device is made of graphite on top, with a carbon foam on the bottom.
The graphite is highly porous and fractured, a crown of flakes, created by putting the material in a microwave oven
Graphite absorbs the sun's rays and heats up. This creates a pressure differential that sucks water from the bottom into the top
--whereas the graphite and carbon used in this sponge are relatively easy to get your hands on,
so they combine the calcium with carbonate ions to form calcite, or limestone, which closes up the cracks.
which could eventually replace the industry standard of synthetic graphite. Besides being less expensive and eco-friendlier
Synthetic graphite, on the other hand, has a relatively high manufacturing cost due to specific preparation and purification processes that can also be harmful to the environment, according to the research team.
as a rule, more tasty than graphite. Everybody wins. The research findings were published today in the journal Nature Scientific Reports e
That materialbbreviated GSTONSISTS of a thin layer of an alloy of germanium, antimony, and tellurium.
a type of lung cancer caused by inflammation following chronic exposure to asbestos, and colon cancer in people with a history of inflammatory bowel disease, says Bogdan Fedeles,
a type of lung cancer caused by inflammation following chronic exposure to asbestos, and colon cancer in people with a history of inflammatory bowel disease, says Bogdan Fedeles,
Most present lithium-ion batteries the most widely used form of rechargeable batteries use anodes made of graphite, a form of carbon.
Graphite has a charge storage capacity of 0. 35 ampere-hours per gram (Ah/g; for many years, researchers have explored other options that would provide greater energy storage for a given weight.
The result is an electrode that gives more than three times the capacity of graphite (1. 2 Ah/g) at a normal charging rate
#Nanoscientists Improve the Stability of Perovskite Solar cells UCLA researchers have taken a step towards next-generation perovskite solar cells by using a metal oxide andwich.
whose team in recent years has developed next-generation solar cells constructed of perovskite, which has remarkable efficiency converting sunlight to electricity.
the delicate nature of perovskite a very light, flexible, organic-inorganic hybrid material stalled further development toward its commercialized use.
perovskite cells broke down and disintegrated within a few hours to few days. The cells deteriorated even faster
when also exposed to moisture, mainly due to the hydroscopic nature of the perovskite. Now Yang team has conquered the primary difficulty of perovskite by protecting it between two layers of metal oxide.
This is a significant advance toward stabilizing perovskite solar cells. Their new cell construction extends the cell effective life in air by more than 10 times
with only a marginal loss of efficiency converting sunlight to electricity. The study was published online in the journal Nature Nanotechnology.
Postdoctoral scholar Jingbi You and graduate student Lei Meng from the Yang Lab were the lead authors on the paper. here has been much optimism about perovskite solar cell technology,
In less than two years, the Yang team has advanced perovskite solar cell efficiency from less than 1 percent to close to 20 percent. ut its short lifespan was a limiting factor we have been trying to improve on since developing perovskite cells with high efficiency.
Endowed Chair in Engineering at UCLA, said there are several factors that lead to quick deterioration in normally layered perovskite solar cells.
and can effectively protect the perovskite layer from moisture in the air, speeding cell degradation. The buffer layers are important to cell construction
Meng said that in this study the team replaced those organic layers with metal oxide layers that sandwich the perovskite layer,
now that the main perovskite problem has been solved. This research is a joint project with National Cheng Kung University in Taiwan.
However, it was demonstrated a decade ago that graphite could be induced into behaving like a superconductor.
If it possible with graphite it should be with graphene, right? Other research groups believed
The researchers who demonstrated last year the role phonons played in the superconductivity of graphite and calcium, Patrick Kirchmann and Shuolong Yang of the SLAC National Accelerator Laboratory
#Graphene and Perovskite Lead to Inexpensive and Highly Efficient Solar cells Perovskite is the new buzzword in photovoltaics.
In the design of the Hong kong researcherssolar cell, the perovskite serves as active layer for harvesting the light,
The researchers improved on the conductivity of the graphene by coating it with a thin layer of a polymer that also served as an adhesion layer to the perovskite active layer during the lamination process.
#Graphene and Perovskite Lead to Inexpensive and Highly Efficient Solar cells Perovskite is the new buzzword in photovoltaics.
In the design of the Hong kong researcherssolar cell, the perovskite serves as active layer for harvesting the light,
The researchers improved on the conductivity of the graphene by coating it with a thin layer of a polymer that also served as an adhesion layer to the perovskite active layer during the lamination process.
The accelerator itself is a quartz capillary about 1. 5 centimeters long and 940 micrometers in diameter
The quartz walls are 270 m thick, leaving a central vacuum 400 m in diameter.
In operation, a 0. 45 THZ pulse is polarized radially bounced off a mirror to enter at one end (call it the right end) of quartz tube.
by adding conducting CNTS into the bioprinted polymer and mineral prosthetic bone implant, you can stimulate the regrowth of the actual bone cells.
Each surface layer of the 3d printed silicone was coated with graphite, capable of acting as a DEA electrode.
It could also be used to capture valuable minerals from fluid mixtures. Other contributors to the work include Lynn M Mcgregor and Yolanda Vasquez from Harvard university;
Most present lithium-ion batteries the most widely used form of rechargeable batteries use anodes made of graphite, a form of carbon.
Graphite has a charge storage capacity of 0. 35 ampere-hours per gram (Ah/g; for many years, researchers have explored other options that would provide greater energy storage for a given weight.
The result is an electrode that gives more than three times the capacity of graphite (1. 2 Ah/g) at a normal charging rate
It is a perovskite a family member of complex oxide materials with distinctive cubic crystal structures.
Perovskites have long been recognized for a variety of useful physical properties, including superconductivity, ferromagnetism and ferroelectricity.
whether other perovskite materials will exhibit the same qualities. e don know if this effect is unique to strontium titanate,
but we hope that this approach can be extended to other perovskite dielectrics in which polar nanoregions are controlled by careful engineering of film defect structure,
This acid is a crystalline solid at room temperature with a structure made up of antimony phosphorous, oxygen and hydrogen atoms. t long been known to scientists that this material is able to take up water
antimony and tellurium. Applying a small jolt of electricity to the alloy results in a change in its structure.
a solid mineral found in eggshells, the shells of various marine organisms, calcium supplements and cement.
Air force Chief Scientist Mica Endsley told Military. com that the Air Force and Darpa, the Pentagon's research entity, plan to have a new and improved hypersonic air vehicle by 2023.
While current lithium ion batteries use graphite a form of carbon it has limited a storage capacity. Metals like lithium can store 10 times as much energy
A lithium ion battery using graphite has a storage capacity of 0. 35 ampere-hours per gram. The researchers also found they could achieve very fast charging times with the'yolk and shell'battery
However, this reduces the capacity of the battery by half to 0. 66 ampere-hours per gram, still tice that of graphite batteries.
The researchers'geospeedometer is sized based on millimeter quartz crystals that grew within the magma bodies that produced these giant eruptions.
Quartz crystals are typically found in magmas that have a high percentage of silica. This type of magma is very viscous
In quartz, the element titanium can vary sharply between different zones or layers within the crystal.
as long as they erupt magmas that contain quartz crystals, 'said Pamukcu.''We are also confident that we can adapt these techniques to work with other minerals,
which will allow us to make similar timescale calculations for other types of magmas and volcanoes,
using natural mineral-based geopolymers. The technology, funded by the National Science Foundation, allows for natural clays found readily all over the planet to be turned into reliable masonry products and offers a sustainable alternative to traditional concrete masonry,
In place of these materials, Watershed Materialstechnology activates globally abundant natural clay-based minerals to form strong geopolymer reactions.
Similar to graphite consisting of weakly bound graphene layers, WTE2 is layered a material that could be reduced to few layers in thickness
scientists discovered that the main reason lithium ion batteries lose their capacity over many charge-discharge cycles has to do with expansion and contraction of the graphite electrodes at either end.
This expansion problem is one of the reasons graphite has been used for so long since it undergoes relatively little change throughout the battery use.
In particular, aluminum has been a frequent candidate to replace graphite, but tends to get discarded because it expands
which enabled researchers to find telltale signs of hydrated minerals on streaked-looking slopes. These dark, narrow,
#Blackberry introduces Porsche Design P983 Graphite at Rs 99,990 in India Blackberry has launched the Blackberry Porsche Design P983 Graphite smartphone in India at a price of Rs 99,990.
Commenting on the launch, Hitesh Shah, Director of Sales and Distribution, at Blackberry India stated, ith the launch of the new P983 Graphite from Blackberry,
Blackberry Porsche Design P983 Graphite, Blackberry Porsche Design P983 Graphite features, Blackberry Porsche Design P983 Graphite launch, Blackberry Porsche Design
P983 Graphite price, Blackberry Porsche Design P983 Graphite spec r
#Google Project Ara modular smartphone delayed to 2016 Google had announced earlier this year, that it will unveil the modular smartphone in Puerto rico as part of a pilot program that will allow people to choose their own hardware based on their needs and interests.
The supplement sector was one of 12 key priorities of the single-market project with plans to harmonise safety standards, health claim substantiation and upper levels for vitamins and minerals and potentially other nutrients.
According to co-author Professor Bert Sels of hape-selective zeolite catalysis for bioplastics productionthe production process for PLA is expensive because of the intermediary steps."
"We speed up and guide the chemical process in the reactor with a zeolite as a catalyst,
added Co-author and postdoctoral researcher Michiel Dusselier. eolites are porous minerals. By selecting a specific type on the basis of its pore shape,
we were able to convert lactic acid directly into the building blocks for PLA without making the larger by-products that do not fit into the zeolite pores. ur new method has compared several advantages to the traditional technique:
Professor Dai said that his team accidentally discovered that a simple solution is using graphite.
This is why the Stanford researchers placed the aluminum anode, a graphite cathode and an ionic liquid electrolyte inside of a polymer-coated pouch.
The prototype battery features an anode made of aluminum, a cathode of graphite and an ionic liquid electrolyte,
The lithium-ion batteries in our phones, tablets and laptops store their energy-carrying ions inside negative electrodes made of graphite.
Lithium could store about 10 times more energy per unit weight than graphite, but it's prone to short-circuiting and catching fire;
silicon and tin could also vastly outperform graphite, but only if the battery is charged at a slow rate,
like lithium or silicon, can store much more energy per unit weight than conventional graphite.
While standard graphite can store approximately 0. 35 ampere-hours per gram (Ah/g), the new electrode can reportedly store over three times as much energy per unit mass (1. 2 Ah/g) at a normal charging rate.
"The biodegradable polymer is reinforced with montmorillonite clay nanoparticles (we've seen nanoparticles used in other ways to heal bones) for strength,
they tested these compounds for their adhesion to a mica surface submerged in a saline solution.
and the catechol comes down and hydrogen bonds to the mica surface.""They created a synthetic version of CTC that offers similar adherence strengths
Magnesium is found as olivine in asteroids, but Neumann has achieved promising results with titanium, aluminium and other widely used metals.
but instead are from the presence of the mineral pyroxene. RSL occur in many different locations on Mars, from equatorial regions up to the planet's middle latitudes.
Most present lithium-ion batteries the most widely used form of rechargeable batteries use anodes made of graphite, a form of carbon.
Graphite has a charge storage capacity of 0. 35 ampere-hours per gram (Ah/g; for many years, researchers have explored other options that would provide greater energy storage for a given weight.
The result is an electrode that gives more than three times the capacity of graphite (1. 2 Ah/g) at a normal charging rate
From sticky tape to chemical synthesis Media-friendly Nobel laureates peeling layers of graphene from bulk graphite with sticky tape may capture the public imagination,
which one electrode is made of maghemite, a ferromagnetic iron oxide(?-Fe2o3), and the other electrode consists of pure lithium metal.
Experiments revealed that lithium ion intercalation in maghemite reduces its magnetization at room temperature. By the specific control of the lithium ions,
magnetization of maghemite can be controlled. Similar to conventional lithium-ion accumulators, this effect can be repeated.
#New material science research may advance tech tools The researchers manipulated a steel gray mineral called manganite,
or antidots, in thin films of manganite. It was discovered that the edges of the antidots were magnetic."
The magnetic phase state at the edges of the antidots raised the metal-to-insulator phase transition temperature of the manganite film.
consists of a 200 nanometre thin layer of yttrium iron garnet (a mineral and magnetic insulator, YIG in short), with a conducting platinum strip on top of that on both sides.
by showing that potassium can work with graphite in a potassium-ion battery-a discovery that could pose a challenge and sustainable alternative to the widely-used lithium-ion battery.
"For decades, people have assumed that potassium couldn't work with graphite or other bulk carbon anodes in a battery,"said Xiulei (David) Ji,
because they open some new alternatives to batteries that can work with well-established and inexpensive graphite as the anode,
as the charge carrier whose ions migrate into the graphite and create an electrical current.
The new findings show that it can work effectively with graphite or soft carbon in the anode of an electrochemical battery.
graphite fills that role, but it has limited a energy capacity. To improve the energy storage, manufacturers are looking for an alternative material to replace graphite.
Cao team wanted to see if they could develop such a material using a sustainable source.
Their material stores five times more lithium than graphite can a capacity that is critical to improving battery performance.
which by using minerals we can induce differentiation in stem cells and promote formation of bonelike tissue.
Those minerals, Gaharwar explains, are largely orthosilicic acid, magnesium and lithium combined in tiny nanosilicate particles that are 100,000 times thinner than a sheet of paper.
Removing salt and other minerals from our biggest available source of water--seawater--may help satisfy a growing global population thirsty for fresh water for drinking, farming, transportation, heating, cooling and industry.
or Antimony-Telluride (Sb2te3) alloys and had a peak efficiency (zt) of 1. 1, meaning the electricity going in was only slightly less than the heat coming out.
which combined all three antimony, bismuth and telluride granules into one alloy (Bi0. 5sb1. 5te3).
T Venky Venkatesan led to the discovery of this new magnetic phenomenon by growing perfectly-crystalline atomic layers of a manganite, an oxide of lanthanum and manganese {Lamno3},
The manganite is an antiferromagnet when it is atomically thin and shows no magnetism. The new discovery is that its magnetism is switched on abruptly when the number of Manganese atomic layers changes from 5 to 6 or more.
inside the manganite. As a consequence of this charge transfer, the manganite layer switches to a strongly ferromagnetic state,
as could be visualised by a magnetic microscopy technique called Scanning SQUID Microscopy. This was conducted by Dr Xiao Renshaw Wang,
The new perovskite film, with the formula Srxla1-xcro3,(x up to 0. 25), conducts electricity more effectively than the unmodified oxide and yet retains much of the transparency to visible light exhibited by the pure material.
"The new perovskite film falls into this category. The development of high-performance transparent conducting oxides (TCOS) is critical to many technologies ranging from flat panel displays to solar cells.
Being structurally and chemically compatible with other perovskite oxides, perovksite LSCO offers considerable promise in the design of all-perovskite oxide electronics s
made of graphite with additional compounds bonded to the edges of two-dimensional sheets of graphene that make up the material.
the Journal of the American Chemical Society("Graphite-Conjugated Pyrazines as Molecularly Tunable Heterogeneous Electrocatalysts"),by MIT assistant professor of chemistry Yogesh Surendranath and three collaborators.
His team was able to accomplish that by taking graphite and finding a way to chemically modify its surface to give it the desired tunability.
and demonstrates how nanotechnology can add significant value to natural graphite. The research is published in Nature Communications("Highly efficient and ultra-broadband graphene oxide ultrathin lenses with three-dimensional subwavelength focusing)
by showing that potassium can work with graphite in a potassium-ion battery-a discovery that could pose a challenge and sustainable alternative to the widely-used lithium-ion battery.
"For decades, people have assumed that potassium couldn't work with graphite or other bulk carbon anodes in a battery,"said Xiulei (David) Ji,
because they open some new alternatives to batteries that can work with well-established and inexpensive graphite as the anode,
as the charge carrier whose ions migrate into the graphite and create an electrical current.
The new findings show that it can work effectively with graphite or soft carbon in the anode of an electrochemical battery.
The new SLIPS-enhanced steel is described in Nature Communications("Extremely durable biofouling-resistant metallic surfaces based on electrodeposited nanoporous tungstite films on steel"."
In The Journal of Physical chemistry("Birnessite: A Layered Manganese Oxide To Capture Sunlight for Water-Splitting Catalysis"),Assistant professor of Chemical engineering Jose L. Mendoza-Cortes details how this new material efficiently captures sunlight and then,
To do this, he initially developed a multilayered material out of manganese oxide, commonly known as birnessite.
inexpensive and high-energy density anode material and paired it with pyrite, which is made of iron and sulfur,
a type of lung cancer caused by inflammation following chronic exposure to asbestos, and colon cancer in people with a history of inflammatory bowel disease, says Bogdan Fedeles,
it reacts with silicate minerals in rocks to form a carbonate deposit. In the lab, the team has mimicked conditions in the Marcellus shale, a vast hive of fracking activity beneath New york state and Pennsylvania.
The project so far includes instructions for making your own soil moisture sensors (based on the gypsum mineral found in plaster of paris;
together with low cost gypsum soil moisture sensors, provides all that
#Plug Your Toaster Into the Sun Sunport lets you use solar power at homeithout the panels.
the negative electrode is made of graphite (a form of carbon), the positive electrode is made of a metal oxide, such as lithium cobalt oxide,
Scientists have experimented for decades with a class of catalysts known as zeolites that transform alcohols such as ethanol into higher-grade hydrocarbons.
As ORNL researchers were developing a new type of zeolite-based conversion technology, they found the underlying reaction unfolds in a different manner than previously thought."
Instead, an energy-producing"hydrocarbon pool"mechanism allows the zeolite catalysts to directly produce longer hydrocarbon chains from the original alcohols."
"Mike Murphy explains at Quartz. Loaded with highly sensitive torque sensors, the device could detect changes in pressure as they are applied to the fingers,
"It stores data using the same material that found in rewritable CDS and DVDS-a phase-change alloy of germanium-antimony-tellurium known as GST."
The prototype developed in the Research Department in Zeolites, at the Institute of Science of the Meritorious University of Puebla (BUAP), in center Mexico,
Methanol is used as a refrigerant and as zeolite (mineral) as an adsorbent. Toledo Flores says the system has two stages, during the day"warming,
Solar energy heats the zeolite and increases the methanol vapor pressure, the refrigerant is condensed and stored in a tank flowing to the evaporator."
and is adsorbed again by zeolite generating cooling temperatures of five degrees Celsius. The adsorption process continues all night until morning."
thereby knows how many zeolite to use. She also considers the room temperature, in this case of 20 degrees Celsius.
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