Water splitting–biosynthetic system with CO 2 reduction efficiencies exceeding photosynthesis
Harvard University · Nanyang Technological University · +1 more institution
Abstract
Artificial photosynthetic systems can store solar energy and chemically reduce CO2 We developed a hybrid water splitting-biosynthetic system based on a biocompatible Earth-abundant inorganic catalyst system to split water into molecular hydrogen and oxygen (H2 and O2) at low driving voltages. When grown in contact with these catalysts, Ralstonia eutropha consumed the produced H2 to synthesize biomass and fuels or chemical products from low CO2 concentration in the presence of O2 This scalable system has a CO2 reduction energy efficiency of ~50% when producing bacterial biomass and liquid fusel alcohols, scrubbing 180 grams of CO2 per kilowatt-hour of electricity. Coupling this hybrid device to existing…
Citation impact
- FWCI
- 62.56
- Percentile
- 100%
- References
- 46
Authors
5- CLChong LiuCorresponding
Harvard University, Nanyang Technological University
- BCBrendan ColónCorresponding
Harvard University, Center for Systems Biology
- MZMarika Ziesack
Harvard University, Center for Systems Biology
- PAPamela A. SilverCorresponding
Harvard University, Center for Systems Biology
- DGDaniel G. NoceraCorresponding
Harvard University
Topics & keywords
- Artificial photosynthesis
- Biomass (ecology)
- Chemistry
- Water splitting
- Photosynthesis
- Bioproduction
- Catalysis
- Hydrogen