December 2016 Current Affairs

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Scientists recycle carbon dioxide to create usable fuel

Scientists recycle carbon dioxide to create usable fuel
03 August 2016 Current Affairs: American researchers have developed a mechanism to convert greenhouse gas carbon dioxide (CO2) into carbon monoxide (CO) that can be recycled into usable fuel.

The mechanism is based on the photosynthesis process that trees uses to convert CO2 into sugars.

It was developed by US Department of Energy's Argonne National Laboratory and the University of Illinois at Chicago.

The study, "Nanostructured transition metal dichalcogenide electrocatalysts for CO2 reduction in ionic liquid," was published in Science.

Mechanism

Although the reaction to transform carbon dioxide into carbon monoxide (CO) is different from anything found in nature, it requires the same basic inputs as photosynthesis.

The setup for the reaction is almost similar to nature in this case that the research team was able to construct an "artificial leaf" that could complete the entire three-step reaction pathway.

1 Incoming photons -- packets of light -- are converted to pairs of negatively-charged electrons and corresponding positively-charged "holes" that then separate from each other.

2  The holes react with water molecules, creating protons and oxygen molecules.

3 The protons, electrons and carbon dioxide all react together to create carbon monoxide and water.

Although carbon monoxide is also a greenhouse gas, it is much more reactive than carbon dioxide and scientists already have ways of converting carbon monoxide into usable fuel, such as methanol.

 


December 2016 Current affairs

November 2016 Current affairs
30 NOV
NEWS
29 NOV
NEWS
28 NOV
NEWS
26 NOV
NEWS
25 NOV
NEWS
24 NOV
NEWS




October 2016 Current affairs
31 OCT
NEWS
27 OCT
NEWS
26 OCT
NEWS
25 OCT
NEWS
24 OCT
NEWS
22 OCT
NEWS

September 2016 Current affairs
30 SEP
NEWS
29 SEP
NEWS
28 SEP
NEWS
27 SEP
NEWS
26 SEP
NEWS
24 SEP
NEWS

August 2016 Current affairs
31 AUG
NEWS
30 AUG
NEWS
29 AUG
NEWS
27 AUG
NEWS
26 AUG
NEWS
25 AUG
NEWS



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