Novel technique produces ethanol from carbon monoxide | GizMag.com

Ethanol may be touted as a more eco-friendly alternative to fossil fuels, but it’s not without its own drawbacks. Most importantly, the corn or other plants required as feedstock often take up field space that could otherwise be put to use growing food crops. Also, as with other plants, the feedstock crops require large amounts of water and fertilizer. Now, however, scientists at Stanford University have devised a method of producing liquid ethanol from carbon monoxide gas.

 

The technology was developed by assistant professor of chemistry Matthew Kanan and graduate student Christina Li. Whereas plant-based ethanol is obtained through a fermentation process, their technique involves taking water saturated with carbon monoxide gas, and placing it in an electrochemical cell at room temperature.

 

Like other fuel cells, theirs has two electrodes (an anode and a cathode), which an electrical current flows between. In the case of a hydrogen fuel cell, the application of that current would convert ordinary water contained within the cell into oxygen gas and hydrogen gas. By using a cathode made of oxide-derived copper, however, Kanan and Li were able to reduce the carbon monoxide in their water into ethanol and acetate.

 

Click headline to read more–

 

Source: www.gizmag.com

See on Scoop.itGlobal Sustainable Energy

Advertisements
This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s