graphite – Shamskm: A site to exchange knowledge and solutions

What Could Graphene Mean For Your Future Smartphone?

By Guest PostDecember 19, 2013Technology3g broadband, apple, biocompatibility tests, digital ink, future smartphone, gadgets, graphene, graphene revolution, graphene super capacitor, graphite, hexagonal carbon atoms, humdrum, imb, iphone 6, lcd technology, microelectronic, mobi data, nokia, oled, Samsung, silicon, tech addicts, technological age

Graphene is the material of the future, it could even help us to achieve invisibility. So what could it mean for your smartphone?

Scientists, engineers and tech-addicts everywhere are getting very excited about Graphene. It may sound like the stuff you get in your pencils but this newly discovered material could help us enter an entirely new technological age. Work is already underway to make invisibility a possibility – all thanks to the wonders of Graphene.

We’re already living in an exciting age of communication. With superfast, super accessible and super affordable 3G broadband from providers like Mobi-data we now have access to the online world wherever we are and wherever we’re travelling all over the world. Yet Graphene is set to take us into the realms of science fiction – giving smartphones and tablets the power to bend and flex, making annoying charging up a thing of the past and making our gadgets more or less indestructible. (more…)

Researchers Create ‘Nanoflowers’ for Energy Storage, Solar Cells

By Guest PostOctober 18, 2012Scienceacs nano, atomic structure, batteries, carnation, chun li, device, energy storage, flow, flower like, flower structure, gayatri pongur snigdha, germanium sulfide, ges, ges nanoflower, ges powder, ges vapor, graphite, liang huang, linyou cao, lithium ion, marigold, material, micrometer, nanometer, next generation, non-toxic, north Carolina, petal, semiconductor, solar cell, state university, structure, surface area, toxic, useable power, vaporize, yifei yu

Researchers from North Carolina State University have created flower-like structures out of germanium sulfide (GeS) – a semiconductor material – that have extremely thin petals with an enormous surface area. The GeS flower holds promise for next-generation energy storage devices and solar cells.

“Creating these GeS nanoflowers is exciting because it gives us a huge surface area in a small amount of space,” says Dr. Linyou Cao, an assistant professor of materials science and engineering at NC State and co-author of a paper on the research. “This could significantly increase the capacity of lithium-ion batteries, for instance, since the thinner structure with larger surface area can hold more lithium ions. By the same token, this GeS flower structure could lead to increased capacity for supercapacitors, which are also used for energy storage.” (more…)

Nearby Super-Earth Likely a Diamond Planet

By Guest PostOctober 11, 2012Science55 cancri e, atmosphere, cancer, carbon, carbon rich, chemistry, compound, constellation, core, david spergel, Diamond, diamond planet, earth, earth mass, element, fahrenheit, formation, gas planet, graphite, habitable world, hyper speed, interior, kanani lee, mass, mineral, molten iron, mountain formation, nikku madhusudhan, olivier mousis, oxygen, planet, plate tectonics, princeton university, radius, rocky planet, scientist, seismic activity, silicates, silicon carbide, size, specific characteristics, star, stellar composition, super earth, surface, temperature, thermal evolution, volcanism, water, yale university

New research led by Yale University scientists suggests that a rocky planet twice Earth’s size orbiting a nearby star is a diamond planet.

“This is our first glimpse of a rocky world with a fundamentally different chemistry from Earth,” said lead researcher Nikku Madhusudhan, a Yale postdoctoral researcher in physics and astronomy. “The surface of this planet is likely covered in graphite and diamond rather than water and granite.”

The paper reporting the findings has been accepted for publication in the journal Astrophysical Journal Letters. (more…)

Diamond in The Rough: Half-Century Puzzle Solved

By Guest PostJuly 25, 2012Sciencecold compressed, conduct, Diamond, electricity, experiment, graphite, hard material, high pressure, industrial application, joseph panzik, m carbon, oakland university, optical technique, puzzle, raman spectroscopy, structure, symmetry, synthesize, university, xray diffraction, yale, yuejian wang

A Yale-led team of mineral physicists has for the first time confirmed through high-pressure experiments the structure of cold-compressed graphite, a form of carbon that is comparable in hardness to its cousin, diamond, but only requires pressure to synthesize. The researchers believe their findings could open the way for a super hard material that can withstand great force and can be used — as diamond-based materials are now — for many electronic and industrial applications. The study appears in Scientific Reports, a Nature journal.

Under normal conditions, pure carbon exhibits vastly different physical properties depending on its structure. For example, graphite is soft, but diamond is one of the hardest materials known. Graphite conducts electricity, but diamond is an insulator. (more…)

Microprocessors From Pencil Lead

By Guest PostMarch 31, 2012Scienceatomic scale, boron nitride, brian leroy, credit card, electron, electron microscope, electronic circuit, grapheme, graphene age, graphite, matthew yankowitz, nano-scale, pencil lead, quantum mechanical effect, relativistic, relativistic quantum effect, semiconductor, sheets of graphite

UA physicists are making discoveries that may advance electronic circuit technology.

Graphite, more commonly known as pencil lead, could become the next big thing in the quest for smaller and less power-hungry electronics.

Resembling chicken wire on a nano scale, graphene – single sheets of graphite – is only one atom thick, making it the world’s thinnest material. Two million graphene sheets stacked up would not be as thick as a credit card. (more…)

Graphene and DNA

By Guest PostMarch 24, 2012Scienceatom, branislav nikolic, carbon atom, cees dekker, device concept, dna detection, dna sequencing, electron beam, electronic current, genetic sequencing, grapheme, graphite, honeycomb pattern, jene golovchenko, kamal saha, marija drndic, nanodevice, nanopores, nanoribbon, nobel prize, quantum, university of delaware, university of pennsylvania, wonder material

‘Wonder material’ may hold key to fast, inexpensive genetic sequencing

Look at the tip of that old pencil in your desk drawer, and what you’ll see are layers of graphite that are thousands of atoms thick. Use the pencil to draw a line on a piece of paper, and the mark you’ll see on the page is made up of hundreds of one-atom layers.

But when scientists found a way—using, essentially, a piece of ordinary sticky tape—to peel off a layer of graphite that was just a single atom thick, they called the two-dimensional material graphene and, in 2010, won the Nobel Prize in physics for the discovery. (more…)

Ions Control Shape of Nanofibers Grown on Clear Substrate

By Guest PostAugust 20, 2011Scienceacetylene, acetylene gas, ammonia gas, anatoli melechko, atoms, biomedical research tools, c2h2, carbon nanofibers, catalytic action, cfd research corporation, chromium grid, dale hensley, electrode, fused silicon, gene delivery tools, gene therapy, graphite, graphitic carbon nanofibers, hexagonal structure, ions, nanofiber coatings, nanofibers, nickel nanoparticles, north carolina state university, oak ridge national laboratory, positively charged atoms, pure silicon dioxide, ryan pearce, solar cells, transparent substrate, water repellent coatings

Researchers from North Carolina State University, the Oak Ridge National Laboratory and CFD Research Corporation have found a new way to develop straight carbon nanofibers on a transparent substrate. Growing such nanofiber coatings is important for use in novel biomedical research tools, solar cells, water repellent coatings and others. The technique utilizes a charged chromium grid, and relies on ions to ensure the nanofibers are straight, rather than curling – which limits their utility.

“This is the first time, that I know of, where someone has been able to grow straight carbon nanofibers on a clear substrate,” says Dr. Anatoli Melechko, an associate professor of materials science and engineering at NC State and co-author of a paper describing the research. “Such nanofibers can be used as gene-delivery tools. And a transparent substrate allows researchers to see how the nanofibers interact with cells, and to manipulate this interaction.” (more…)

Tag Archives: graphite