But hitherto, converting organic waste to fuel has not been economically viable. Excessively high temperatures and too much energy are required.
Currently, it is possible to make fuels out of CO2–plants do it all the time–but researchers are still trying to crack the problem of artificially producing the fuels at large enough scales to be useful.
The MIT Energy Initiative( MITEI ) is MIT’s hub for multidisciplinary energy research, education, and outreach.
Ethanol was a surprise — it’s extremely difficult to go straight from carbon dioxide to ethanol with a single catalyst.
Finding an inexpensive, readily-available photocathode material could open up new options to create cheaper, more energy-effective solar fuel cells.
Researchers in the past believed that algae only produce hydrogen in the course of a single microburst at dawn lasting just a few minutes.