Material World
These crystalline compounds soak up CO2 like sponges.

MOF-200 Courtesy UCLA

It goes without saying that global warming is one of the thorniest problems of our time. If only we had some kind of sponge to just soak up all that carbon dioxide! The Metal Organic Frameworks (MOFs) developed by UCLA researchers might not be a catchall solution. But as the most porous materials on earth, they can be used to store, separate or convert molecules--and could help absorb harmful gases before they reach the air.

MOF-210:  Courtesy UCLA

Lead researcher Omar Yaghi discovered a way to make highly porous MOFs in 1999, and his team continues to update that work today--their most porous materials to date are called MOF-200 and MOF-210. The pore aperture measures of these materials is 32 by 24 angstroms (ten billionth of a meter). The internal diameter is 47 angstroms. We're talking in pretty tiny terms here, but those are the largest reported MOF pore measurements we know of. Other materials like mesoporous silica and porous carbon have very large aperture and pore sizes, too. One difference: they don't have the same flexible structure as MOFs. The researchers found that the pore aperture of MOFs can be controlled on the angstrom level by increasing the number of atoms in the organic links of its design.

Even though MOF-200 and 210 are the most porous materials on earth by a long shot, other materials in this category are still pretty impressive gas absorbers. Check out how a chemical company in Germany, applies MOFs ability to store gases for an application in vehicle fuel tanks.

Fun fact: MOFs also have very high surface area. (After all, more pores equal more surfaces.) Northwestern University researchers designed two MOFs that hold the award for greatest internal surface area. Is there a world record for the material with the most world records?

19 Comments

The most porous material on Earth is Obama's brain.

@gizmowiz
That is some mighty fine trolling! Way to contribute to the community! Let's hear some more off topic bitterness!

This could speed adoption of natural gas vehicles in the U.S. The most expensive part of a natural conversion on a car engine is the storage tank. It has to stand immense pressure to hold enough gas to give the vehicle reasonable range. MOFs could dramatically improve the amount of gas stored--and at much lower pressure. With natural gas prices averaging less than half the price of regular unleaded, as well as much cleaner emissions and massive natural gas reserves in the U.S., this is very good news.

On a different note, it does not go without saying that global warming is one of the thorniest problems of our time. In fact, it's a non-problem, except to easily excitable people. Surveys show it ranks really low on the list of human concerns. Humans didn't cause global warming so it goes without saying that humans can't fix it. Despite the assurances of James Hansen, Michael Mann, Al Gore and others that the science is settled, no one actually knows what causes the earth to warm and cool over thousands of years. They know it happens. They know it appears to be cyclical. As for why and how, there are plenty of theories, but in most theories greenhouse gases like CO2 are the product of a warming climate, not the cause.

Warming happens so gradually that adaptation, especially for humans, is extremely simple. It doesn't require government intervention, taxpayer-funded programs, or global initiatives. Billions of people adapt to much larger environmental changes by themselves all the time without the help of government or global initiatives. It's called life. My advice: keep calm and carry on.

Patricia answered I didn't even know that a single mom can earn $6571 in four weeks on the computer. did you read this website.. {{{ trunc.it/mfgjz }}}

Gizmowiz - Yet he is President of the United States and here you are trolling.

the president is a pretty big idiot, but america's problem doesn't lie solely with our idiot president. our problem is the us senate and the house of representatives, they are the ones who don't call Obama out on his executive orders (unconstitutional)and they are the ones who ratify stupid proposals for BS reasons ("we have to pass it in order to understand what's in it").

as for the material it's pretty freaking awesome!

to mars or bust!

Ball bondage is so bizarre, but not boring, lol.

Wouldn't a turbine engine be better than a piston engine in "plug-in" hybrid vehicles?

Why is this thread trolled by so many right-wing nutcases?

yeah wow who trolls on a science article?
@laurenra7 you have a very narrow mind. People can adapt, but unfortunately we all live in this thing called a biosphere, and most everything else that lives in the biosphere will have a very difficult time adapting to the anthopogenic climate change caused not only by our greenhouse gas emissions but also our myriad activities that are destroying the planet's natural capacity to absorb those greenhouse gases. How can plants/animals shift their habitats (which they will need to do to adapt to the changing climate) if highways, roads, suburbs, farms, cities, etc. are in the way?
And OF COURSE the climate has always changed, and OF COURSE greenhouse gases are emitted regardless of human activity, but our burning of fossil fuels mixed with worldwide deforestation has totally messed with whatever relative equilibrium there would otherwise be.
And sorry, to say that there is any compelling evidence that suggests humans aren't accelerating processes that do already exist is completely idiotic.

Ghost....please refrain from off topic posts. Apparently you need to check your facts about executive orders and past presidents.

right wing/nutcases = one in the same

Actually, the current President and past Presidents are not idiots at all. The Presidents are elected by popularity and puppets on a string from the privately Owned Federal Reserve Bank. There true purpose is to pacify us citizens as the new world order comes into being and we are all search, followed, being stalked and controlled by the new NSA in Utah and the new world currency that will come into play, after we have our world economic collapse.

This has to be a gentle long-term motivated movement of manipulation to get all the people on boards.

What is the value of the dollar, whatever the Federal Reserve Bank says will be. Who own most of everything in the world, the 1% rich do. Who owns the major multimedia, the new world order does.

Who has a monopoly on power our USA government and who controls them, the Federal Reserve Bank.

And there is an outside source that has motivated and got weapons for Gaza. This whole thing stinks of manipulation to get Israel to commit their weapons resources.

I would be surprise sometime soon another country, (hint IRAN), and begin an attack on Israel.

This outside source country wants Israel to committed military recourses, so Israel is concurred.

When anonymous finds out whom the true bad guy is, they kick his a#s.

Meanwhile where is our Pres.,; he is chumming with the Chinese.... sheesh.

I do pray and hope that Israel and Gaza find a truce.

Trolling?

PopSci Blogs are mostly just examples of trolling. Though they occasionally do report on a new tech innovation.

Bagpipes100,
Or it could be an open conversation with its own natural flow. In life natural conversation often goes off into tangents. So Bagpipes100 what productive things in conversation have you offered today or you just a whiner?

Dear awey0404, other organisms adapted (or didn't) to climate change long before humans arrived on the scene.

FYI, rapid deforestation happens during the phase of economic growth when nations go from pre-industrial (poor) to post-industrial (wealthy). Once nations achieve a certain level of wealth and their standard of living improves, they begin to replenish their forests (and clean their air and water). Lumber companies replant forests all the time because it makes economic sense. In the U.S. we have more forest and tree cover now than we did a hundred years ago.

Also FYI, two other significant things happen when nations graduate from poverty to relative wealth: they use energy more efficiently, which reduces greenhouse gas emissions, and the birth rate declines. In most European countries, the U.S., Canada, Japan, and other wealthy countries, the birth rate has dropped to below replacement level, which means those populations are, or soon will be, in decline.

What does it all mean? You can count on global greenhouse gas emissions to eventually decline, say sometime in the next 50 years, without any government intervention.

Climate scientists know this, so the ones who are most invested in promoting alarm say that the planet is nearing a "point of no return" where greenhouse gases and warming will create a positive feedback cycle that accelerates warming and its effects. Problem is, there is no evidence that such a "point of no return" exists and if it does, no ones knows what the numbers are. It's simply speculation.

As for the suggestion that human emissions accelerate planetary warming; there is no conclusive evidence of that either. In fact there is no evidence that warming is accelerating (except for a famously debunked "hockey stick" temperature graph). In the ancient past it appears that increases in greenhouse gases were a result of warming, not a cause. Why would that be any different now?

It's true that in a closed system increasing CO2, methane, and water vapor increase warming logarithmically (ie.; not very much at all). The earth's biosphere is not a closed system and behaves differently. Climate scientists know this and use computer models with their variable "forcings" and "feedbacks" to try and predict the warming effects of increases in greenhouse gases. When compared with real world measurements, the computer models usually significantly overstate the effects predicted. In other words, they aren't very accurate.

So, back to what I originally said: no one really knows what causes the earth to warm and cool, as it has done cyclically for hundreds of thousands of years or more.

Far more effective than counterproductive "carbon taxes" and "cap-and-trade" schemes to solve a problem that may only exist in the minds of alarmists, the best thing we can do to "prevent warming" is to promote freedom, peace, free markets and free trade to help other countries (in Africa, the Middle East, and southeast Asia) to quickly achieve a level of wealth that will ultimately reduce their carbon footprints.

FYI: Gaza source of weapons...

security.blogs.cnn.com/2012/11/19/smuggling-weapons-to-gaza-the-long-way/?hpt=hp_c2

Not all residents of the USA are Cloward-Piven Clones, Radical is Hate Science and the Megaphones that Echo the Mantra.
And it is still a free Country.

@gizmowiz comment, anyone see the irony in his post?

I wonder how this material would hold up to being scaled up to say a lighter than aircraft? It seems flexible yet strong(ish). So many applications, but if not scalable or mass produceable it is just becomes and experimental exercise.


140 years of Popular Science at your fingertips.

Innovation Challenges



Popular Science+ For iPad

Each issue has been completely reimagined for your iPad. See our amazing new vision for magazines that goes far beyond the printed page



Download Our App

Stay up to date on the latest news of the future of science and technology from your iPhone or Android phone with full articles, images and offline viewing



Follow Us On Twitter

Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed


February 2013: How To Build A Hero

Engineers are racing to build robots that can take the place of rescuers. That story, plus a city that storms can't break and how having fun could lead to breakthrough science.

Also! A leech detective, the solution to America's train-crash problems, the world's fastest baby carriage, and more.



Online Content Director: Suzanne LaBarre | Email
Senior Editor: Paul Adams | Email
Associate Editor: Dan Nosowitz | Email

Contributing Writers:
Clay Dillow | Email
Rebecca Boyle | Email
Colin Lecher | Email
Emily Elert | Email

Intern:
Shaunacy Ferro | Email

circ-top-header.gif
circ-cover.gif