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PNNL team develops new low-cost method to convert captured CO2 to methane

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By using a water-lean post-combustion capture solvent, (N-(2-ethoxyethyl)-3-morpholinopropan-1-amine) (2-EEMPA), they achieved a greater than 90% conversion of captured CO 2 to hydrocarbons—mostly methane—in the presence of a heterogenous Ru catalyst under relatively mild reaction conditions (170 °C and 2 pressure).

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Researchers use melamine to create effective, low-cost carbon capture; potential tailpipe application

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millimoles per gram at 1 bar), fast adsorption time (less than 1 minute), low price, and extraordinary stability to cycling by flue gas. The low cost of porous melamine means that the material could be deployed widely. The energy savings come from not having to heat the substance to high temperatures.

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Swiss team develops effective and low-cost solar water-splitting device; 14.2% solar-to-hydrogen efficiency

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Their high production volumes have largely contributed to a price drop of 80% since 2008, currently reaching levels below $1 per watt peak. As the V OC of the presented c-Si cells is only ∼600 mV, four cells need to be connected in series to achieve stable water splitting performance. Schüttauf et al. Jan-Willem Schüttauf, Miguel A.

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

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The resulting CNT wool is of length suitable for weaving into carbon composites and textiles and is highly conductive; the calculated cost to produce the CNTs is approximately $660 per ton, compared to the current $100,000+ per ton price range of CNTs. The process is constrained by the (low) cost of electricity.

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DOE to award $35M for bioenergy feedstock and algae R&D

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DE-FOA-0002423 ) Topic Areas ins the FOA support DOE’s Bioenergy Technologies Office’s (BETO’s) objectives to reduce the minimum selling price of drop-in biofuels, lower the cost of biopower, and enable high-value products from biomass or waste resources. Development of novel methods for rapid/real-time measurements.

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Harvard team demonstrates new metal-free organic–inorganic aqueous flow battery; potential breakthrough for low-cost grid-scale storage

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The two main components—the electrochemical conversion hardware through which the fluids are flowed (which sets the peak power capacity) and the chemical storage tanks (which set the energy capacity)—may be independently sized. The design permits larger amounts of energy to be stored at lower cost than with traditional batteries.

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New $30M ARPA-E program to produce renewable liquid fuels from renewable energy, air and water

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The US Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) announced up to $30 million in funding for a new program for technologies that use renewable energy to convert air and water into cost-competitive liquid fuels. ( kWh—the price needed to be competitive with other carbon-free delivery methods.

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