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Researchers develop titanium and copper heterostructured photocatalyst for conversion of CO2 into CH4

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Under illumination for 6 hours, the optimized reduced titania-Cu 2 O photocatalyst enables 0.13% photoreduction of highly diluted CO 2 with water vapors to 462 nmol g ?1 What if we drew inspiration from photosynthesis, the process by which plants use sunlight to convert CO2 and water into useful chemicals?

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Audi partnering with Climeworks on CO2 direct air capture and storage

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Water from the Hellisheiði power plant then flows through the facility and transports the carbon dioxide roughly 2,000 meters below the surface of the Earth. The water returns to the cycle of the geothermal power plant. —Hagen Seifert, Head of Sustainable Product Concepts at Audi.

Audi 446
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Audi in new e-fuels project: synthetic diesel from water, air-captured CO2 and green electricity; “Blue Crude”

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Audi’s latest e-fuels project is participation in a a pilot plant project in Dresden that produces diesel fuel from water, CO 2 and green electricity. The sunfire plant, which operates according to the “power-to-liquid” (PtL) principle, requires carbon dioxide, water and electricity as raw materials. The process is up to 70% efficient.

Audi 400
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Sandia team puts power into local grid with supercritical CO2 closed-loop Brayton-cycle turbine

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Because so much energy is lost turning steam back into water in the Rankine cycle, at most a third of the power in the steam can be converted into electricity. —Rodney Keith, manager for the advanced concepts group working on the Brayton cycle technology. It may not sound super significant, but it was quite a path to get here.

Grid 396
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PSI team demonstrates direct hydrocarbon fuel production from water and CO2 by solar-driven thermochemical cycles

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syngas—from water and CO 2. Now, a team from the Paul Scherrer Institute (PSI) in Switzerland has demonstrated the direct production of hydrocarbon fuel—specifically methane—from water and CO 2 by incorporating a catalytic process into STCs. Click to enlarge. —Lin et al.

Water 170
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EPFL team develops on-board system to capture CO2 from trucks; reducing emissions by 90%

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Researchers at EPFL have patented a new concept that could cut trucks’ CO 2 emissions by almost 90%. The patented concept is the subject of an open-access paper published in Frontiers in Energy Research. First, the vehicle’s flue gases in the exhaust pipe are cooled down and the water is separated from the gases.

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United announces investment in, commercial agreement with Dimensional Energy; CO2-to-SAF

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million award from ARPA-E ( earlier post ), has developed a reactor and catalysts to convert CO 2 and hydrogen from water into syngas for use in the Fischer-Tropsch process. United and United Airlines Ventures (UAV) announced an investment in and commercial agreement with Dimensional Energy. Dimensional Energy, which recently received a $3.1-million