Posted: Today 11:55:51 AM EST
I stumbled across this Rice University professor’s youtube channel: Can You Make Graphene with Amazon Parts? We Did! ??? #science #chemistry #graphene Supposedly during covid, his students figured out a way to make graphene at home using “metallurgy coke”, a terracota flower pot, two welding rod electrodes, a cheap welder, and a rotating “turn table”. I did a search on google for “ar15.com + graphene” . It appears that the Chinese have figured out how to make body armor from graphene. It is supposedly strong enough to stop a .50 BMG bullet. Graphene seems to hyped up as some “miracle material”. Is it really all that? |
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It's useful for a lot of things and potentially extremely strong if they can figure out how to arrange it in the right way and mass produce it. My daughter's summer research this year was in "Synthesis of light-responsive metal-organic frameworks for switchable catalysis." which is one potential use for graphene. She produced a catalyst that only functioned when exposed to light, providing precise time and location control of the catalyst. I believe you can do the same thing with electrical conductivity so you can make really fast switches and such. Graphene has lots of potential uses in energy, environment, and industrial processes, but most people are excited about its potential as a structural material, where it's theoretically significantly stronger than anything we can produce and makes all sorts of crazy stuff possible. |
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Originally Posted By BoneB1B: It’s really expensive Has some cool properties. There is a bike frame available that has sone graphene added. Superlight and it transmits gear change signals and performance data through the frame. Yeah, I read some stuff about it being used in electronics. And I read about graphene being used in fabrics. So the first thing I thought of was Batman’s cape (“memory cloth”):  Batsuit | Batman: Begins \ The Dark Knight |
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Originally Posted By K2QB3: It's useful for a lot of things and potentially extremely strong if they can figure out how to arrange it in the right way and mass produce it. My daughter's summer research this year was in "Synthesis of light-responsive metal-organic frameworks for switchable catalysis." which is one potential use for graphene. She produced a catalyst that only functioned when exposed to light, providing precise time and location control of the catalyst. I believe you can do the same thing with electrical conductivity so you can make really fast switches and such. Graphene has lots of potential uses in energy, environment, and industrial processes, but most people are excited about its potential as a structural material, where it's theoretically significantly stronger than anything we can produce and makes all sorts of crazy stuff possible. So like carbon fiber on steroids??? What was the end goal or what would be the real world application of a catslyst that only worked in the light? |
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Graphene is a single, one-atom-thick layer of carbon atoms arranged in a hexagonal honeycomb lattice. It is essentially a 2D sheet made from graphite (the stuff in pencils), where graphite consists of many graphene layers stacked on top of each other. ### Key properties that make graphene extraordinary: - **Strongest material ever measured** About 200 times stronger than steel by weight. - **Lightest** One square meter weighs only ~0.77 milligrams. - **Best conductor of electricity** at room temperature (better than copper). - **Best conductor of heat** known. - **Almost completely transparent** Absorbs only ~2.3% of visible light. - **Impermeable** to gases Even helium atoms can't pass through a perfect sheet. - **Extremely flexible and stretchable** Can be stretched up to 20 25% of its length without breaking. ### How it was discovered Graphene was first isolated in 2004 by Andre Geim and Konstantin Novoselov at the University of Manchester using a surprisingly simple method: they peeled layers off graphite with ordinary Scotch tape until they got a single layer. They won the 2010 Nobel Prize in Physics for this work. ### Common forms today - **Single-layer graphene** (the "true" graphene) - **Few-layer graphene** (2 10 layers) - **Graphene oxide** and **reduced graphene oxide** (chemically modified versions that are easier/cheaper to produce in bulk) ### Current and potential applications - Ultra-fast transistors and next-gen electronics - Flexible/wearable electronics and foldable screens - Super-efficient batteries and supercapacitors - Water filtration (can desalinate water or remove contaminants) - Stronger, lighter composites (aircraft, cars, sports equipment) - Biomedical uses (drug delivery, cancer treatment, biosensors) - Transparent conductive coatings (touchscreens, solar cells) ### Challenges Perfect single-layer graphene is still expensive and hard to produce at large scale without defects. Most commercial "graphene" products today contain graphene oxide, flakes, or multi-layer material rather than pristine single-layer sheets. In short: Graphene is often called a "wonder material" because it combines extreme strength, flexibility, and conductivity in a single atomic layer and it's made entirely of carbon, one of the most abundant elements on Earth. |
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Don’t know if it is marketing or next gen stuff, but Caterpillar hand held power tools use graphine batteries Cat power tools graphine batteries ETA yes I spelled graphene wrong in most of my post, f-it I’m leaving it |
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Originally Posted By WeimaranerDad: So like carbon fiber on steroids??? What was the end goal or what would be the real world application of a catslyst that only worked in the light? "Potential uses for light-switchable catalysts include precise control over chemical synthesis for applications like drug discovery, environmentally friendly processes such as carbon dioxide reduction and water splitting, and advanced materials and technologies like magnetic data storage and pathogen inactivation. The ability to turn these catalysts "on" and "off" with light allows for the creation of complex molecules with high specificity, the development of smart materials, and more efficient chemical manufacturing." She's going to major in Chemical Engineering, just finished her college applications. |
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Originally Posted By LoBrau: Link to study re: graphene body armor stopping 50cal?  More to the point, would the terminal effect on the impacted person be much different if the projectile energy was spread out over a square foot or so? Particularly if deflection of the armor was involved? |
It's true no matter who you are, the worst thing you can do for someone is give them something for nothing. - 3rdpig
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Do not handicap your children by making their lives easy. - Heinlein
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Originally Posted By lumper: More to the point, would the terminal effect on the impacted person be much different if the projectile energy was spread out over a square foot or so? Particularly if deflection of the armor was involved? Originally Posted By lumper: Originally Posted By LoBrau: Link to study re: graphene body armor stopping 50cal? More to the point, would the terminal effect on the impacted person be much different if the projectile energy was spread out over a square foot or so? Particularly if deflection of the armor was involved? Yes that too. I have many questions regarding the claim. |
Strange women lying in ponds distributing swords may not be a basis for a system of government, but strange men distributing Kalashnikovs from the back of a Toyota certainly can be.