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Graphene Converts Heat Into Electricity

Graphene Converts Heat Into Electricity | Air Pollution | Scoop.it

Graphene was first isolated at the University of Manchester in 2004 by Sir Andre Geim and Sir Kostya Novoselov. In 2010, they were awarded the Nobel Prize for Physics for their discovery. Graphene’s most unique property is that it is only 1 atom thick, making it the first 2-dimensional material. Today, the university remains the home of graphene research, with over 40 industrial partners working on graphene-related projects.


Recently, its scientists, working with European Thermodynamics Ltd, created low-cost thermoelectric materials that could be used to capture heat from automobiles and convert it into electricity. That electricity can then be used to recharge the batteries in hybrid, plug-in hybrid, and electric cars to give them more range.


The team—led by Prof Ian Kinloch, Prof Robert Freer, and Yue Lin—added a small amount of graphene to strontium titanium oxide. The resulting composite was able to convert heat that would otherwise be wasted into an electric current over a broad temperature range, beginning at room temperature. Previously, thermoelectric materials only functioned at extremely high temperatures around 700 degrees Celsius.


“Our findings show that by introducing a small amount of graphene to the base material can reduce the thermal operating window to room temperature which offers a huge range of potential for applications,” says Prof Freer. “The new material will convert 3-5% of the heat into electricity. That is not much but, given that the average vehicle loses roughly 70% of the energy supplied to it by its fuel to waste heat and friction, recovering even a small percentage of this with thermoelectric technology would be worthwhile.”


The numbers get a bit confusing, but if a conventional internal combustion engine only converts 30% of its fuel into forward motion, recapturing just 3% of its wasted heat could translate into a 10% improvement in fuel economy. Car manufacturers today would be thrilled to make their cars 10% more fuel efficient as they struggle to comply with tough new regulations set to begin shortly in the US and Europe.


Via Dr. Stefan Gruenwald
Patrick Gaddy's insight:

This Graphene material could be very useful. As the article states Graphene can be in any shape, it converts 3% of wasted heat the heat produced into energy, and it harder than diamond and stronger than steel so it has many uses for it. Now it just needs more work done on it.

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Think the Air Pollution Is Bad? China Faces a Water Contamination Crisis

Think the Air Pollution Is Bad? China Faces a Water Contamination Crisis | Air Pollution | Scoop.it
The Xinhua news agency reported that 60 percent of China's groundwater is either "bad" or "very bad"
Patrick Gaddy's insight:

China really needs to get their act together. First of all the air is choking them now they have toxic water. As the sentence above would accurately describe it "60 percent of China's groundwater is either "bad" or "very bad"".  They can't even grow crops with this sludge. Most of the blame falls on the businesses' money hungry schemes

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Kentucky Coal Company Falsified Water Pollution Reports, Environmental Group Alleges | Environment

Kentucky Coal Company Falsified Water Pollution Reports, Environmental Group Alleges | Environment | Air Pollution | Scoop.it
Water flowing from one of the discharge points in Floyd County, KY where Frasure Creek Mining was turning in false water monitoring reports.
CREDIT: Appalachian Voices A major Kentucky coal company falsified its pollution reports in the first...
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Basically a Kentucky coal company gave false water pollution reports this year. The mine where the coal is dug up was prone to polluting the water in the past and they're trying to cover it up. They've been duplicating the reports instead of giving new ones for a while and no one knows the actual pollution levels. The process used to get the coal is mountaintop removing and is very dangerous to the water quality. Frasure Creek Mining is in deep trouble now.
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Ozone-destroying chemical making comeback, scientists find

Ozone-destroying chemical making comeback, scientists find | Air Pollution | Scoop.it
Hydrogen chloride was long thought to be in the decline in upper atmosphere
Patrick Gaddy's insight:

Somehow rogue CFL emissions have risen in a higher concentration. The hypothesis that the ozone will rise again in 50 years has not changed. I'm wondering where it's comming from.

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Climate Change And Air Pollution Could Join Forces To Make The World Even Hungrier

Climate Change And Air Pollution Could Join Forces To Make The World Even Hungrier | Air Pollution | Scoop.it
Reducing air pollution, on the other hand, could actually increase wheat production in the U.S. and China.
Patrick Gaddy's insight:

The pollution and the climate change are causing crop to go bad in different areas. Scienctist have estimated that if emissions were decreased by 2040 it could decrease the climate change impact on crops. I find this interesting because this is a potential solution to our food problem.

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Urban Algae Farm Gobbles Up Highway Air Pollution | IFLScience

Urban Algae Farm Gobbles Up Highway Air Pollution | IFLScience | Air Pollution | Scoop.it
A French and Dutch design firm has come up with an elegantly simple way to harness the wonderful power of nature in order to clean up the environment: an algae farm suspended over a small stretch of highway in Geneva, Switzerland. Gizmodo/Cloud Collective
Patrick Gaddy's insight:

There was an algae farm built over a highway in Switzerland. This not only filters the Carbon into Oxygen it also filters the water in the pipes, generates biodiesel, electricity, and it's good for food and medications. I like that this was built over a highway in Switzerland.

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The negative impact of water pollution is turning Canadian lakes into Jelly | CTA News

The negative impact of water pollution is turning Canadian lakes into Jelly | CTA News | Air Pollution | Scoop.it
Patrick Gaddy's insight:

The lakes are like Jell-o Pudding. The industries in Canada are polluting the Lakes that Canada takes pride in. Then the lakes retaliated by turning into jelly.

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Water Pollution Documentary - YouTube

Water Pollution
Patrick Gaddy's insight:

This documentary is about what pollutes the water and how it effects the things around it. First of all it gives examples about what pollutes the water like throwing things on the street that eventually make it to rivers. Next he talked about how the things in the water stunt plant growth by both reflecting the sunlight and overriding the nutrients. Next he talks about how the cars we drive are also polluting the water. Then we end on keeping our street and water ways clean.

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Still a Lot to Learn About India’s Deadly Air Pollution

Still a Lot to Learn About India’s Deadly Air Pollution | Air Pollution | Scoop.it
There is still a lot that scientists don’t know about air pollution, but the severe pollution common in much of India offers scientists an opportunity to better understand its causes and effects. Lawrence Berkeley National Laboratory researcher Josh Apte is developing some unique approaches to studying air pollution in India and hopes to apply what he learns to developing global strategies for combating it.
Patrick Gaddy's insight:

India has a still rising high air pollution. It has one of the top pollution levels in the world. India needs to get their act together.

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Air Pollution Linked to 1.2 Million Deaths in China

Air Pollution Linked to 1.2 Million Deaths in China | Air Pollution | Scoop.it
Air pollution was the fourth leading risk factor for deaths in China, accounting for the loss of 25 million healthy years of life from the population, a study said.
Patrick Gaddy's insight:

The air pollution in China is causing people to die prematurely. This shows what way to much pollution could do. I know what not to do now.

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stephanie mckenzie's curator insight, November 6, 2014 10:07 PM

I feel some type of way because Chinese people can only have one kid. Its like Yea, honey we no longer have a kid due to pollution..... i don't even know who to sue for that one. It article shows how bad it really is in China, I give props to the Chinese kids. No only are the smart, they have amazing lumps.

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Children's Attention Deficit Linked to Air Pollution

Children's Attention Deficit Linked to Air Pollution | Air Pollution | Scoop.it
New York City children exposed in the womb to high levels of pollutants in vehicle exhaust had a five times higher risk of attention problems at age 9, according to new research
Patrick Gaddy's insight:

Basically the pollution from exhaust hare affecting children's growth in the womb and causing them to have ADHD. There were traces of polycyclic aromatic hydrocarbons (PAHs) in the blood of the mothers whose children show signs of ADHD. Of course the smoke makes the kids brain go screwy.

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Eco optimized's curator insight, November 6, 2014 4:47 PM

Yet another issue to deal with in New York city caused by pollution emitted from the cars and trucks.