Format

Send to

Choose Destination
See comment in PubMed Commons below
Science. 2012 Mar 30;335(6076):1596. doi: 10.1126/science.1217643.

Integrated electromicrobial conversion of CO2 to higher alcohols.

Author information

  • 1Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA.

Abstract

One of the major challenges in using electrical energy is the efficiency in its storage. Current methods, such as chemical batteries, hydraulic pumping, and water splitting, suffer from low energy density or incompatibility with current transportation infrastructure. Here, we report a method to store electrical energy as chemical energy in higher alcohols, which can be used as liquid transportation fuels. We genetically engineered a lithoautotrophic microorganism, Ralstonia eutropha H16, to produce isobutanol and 3-methyl-1-butanol in an electro-bioreactor using CO(2) as the sole carbon source and electricity as the sole energy input. The process integrates electrochemical formate production and biological CO(2) fixation and higher alcohol synthesis, opening the possibility of electricity-driven bioconversion of CO(2) to commercial chemicals.

PMID:
22461604
DOI:
10.1126/science.1217643
[PubMed - indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center