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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).

Low Cost 315
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Researchers use melamine to create effective, low-cost carbon capture; potential tailpipe application

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The low cost of porous melamine means that the material could be deployed widely. But this requires large amounts of energy to release the carbon dioxide once it’s bound to the amines, so that it can be concentrated and stored underground. The energy savings come from not having to heat the substance to high temperatures.

Low Cost 243
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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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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. We demonstrate in this study that, thanks to their high V OC , three series-connected SHJ cells can already stably drive the water splitting reaction at unprecedented SHE. Schüttauf et al.

Solar 150
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Waste Management and Renmatix to explore conversion of urban waste to low-cost cellulosic sugar via supercritical hydrolysis

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The water-based Plantrose Process consists of two core steps: Fractionation of biomass and separation of the remaining solids which contain cellulose and lignin. The stored solids are slurried with water and pumped and heated to reaction temperature and then fed to the fractionation reactor where the reaction takes place.

Waste 274
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MIT Researchers Identify New Low-Cost Water-Splitting Catalyst

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Daniel Nocera and his associates have found another formulation, based on inexpensive and widely available materials, that can efficiently catalyze the splitting of water molecules using electricity. Earlier post.). Materials for the new catalyst are even more abundant and inexpensive than those required for the first.

Low Cost 225
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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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Quinones are naturally abundant, inexpensive, small organic molecules, and similar to molecules that store energy in plants and animals. The technology could fundamentally transform the way electricity is stored on the grid, making power from renewable energy sources such as wind and sun far more economical and reliable. Background.

Low Cost 374
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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. ( Comparative costs of current different energy delivery options for transportation.

Renewable 150