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New system for more efficient CO2 electrolysis to hydrocarbon products

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A team of researchers from Canada and the US has developed a system that quickly and efficiently converts carbon dioxide into simple chemicals via CO 2 electrolysis. The electrode architecture enables production of two-carbon products such as ethylene and ethanol at current densities just over an ampere per square centimeter.

CO2 414
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Molten carbonate electrolysis can produce a range of carbon nanomaterials, including graphene, from CO2 at high yield

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Researchers from Huazhong University of Science and Technology in China and George Washington University in the US report in a new paper in the ACS journal Accounts of Chemical Research that a range of important carbon nanomaterials can be produced at high yield by molten carbonate electrolysis. Source: Prof.

Carbon 376
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BMW i Ventures invests in Prometheus Fuels; CO2 air-capture and conversion to carbon-neutral gasoline

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BMW i Ventures has invested in Prometheus Fuels ( earlier post ), a company removing CO 2 from the air and turning it into zero-net carbon gasoline that it will sell at gas stations, at a price that competes with fossil fuels, starting as early as this year. The separation of ethanol and other fuel products from water.

Gasoline 321
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Sandia team puts power into local grid with supercritical CO2 closed-loop Brayton-cycle turbine

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Sandia National Laboratories researchers recently delivered electricity produced by a new power-generating system to the Sandia-Kirtland Air Force Base electrical grid. The system uses heated supercritical carbon dioxide instead of steam to generate electricity and is based on a closed-loop Brayton cycle.

Grid 396
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GWU team demonstrates highly scalable, low-cost process for making carbon nanotube wools directly from CO2

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Stuart Licht have demonstrated the first facile high-yield, low-energy synthesis of macroscopic length carbon nanotubes (CNTs)—carbon nanotube wool—from CO 2 using molten carbonate electrolysis ( earlier post ). This synthesis consumes only CO 2 and electricity, and is constrained only by the cost of electricity.

Low Cost 300
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New highly efficient catalyst for photoelectrochemical CO2 reduction toward methane

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The researchers think that it could be recycling smokestack carbon dioxide into clean-burning fuel within 5-10 years. Thirty percent of the energy in the US comes from natural gas. The chief advance is that the team has harnessed relatively large electrical currents with a device that should be possible to mass produce.

CO2 349
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MIT researchers propose mechanism for overcoming bottleneck in electroreduction of CO2

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The findings could spur progress on developing a variety of materials and designs for electrochemical carbon dioxide conversion systems. Depending on the material choice for the electrocatalysis, a certain variety of products is expected from the carbon dioxide reduction reaction (CO 2 RR). —Soto et al.

MIT 284