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New photocatalytic system converts carbon dioxide to valuable fuel more efficiently than natural photosynthesis

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The new system mimics a natural chloroplast to convert carbon dioxide in water into methane, very efficiently using light. Photosynthesis is the process by which chloroplasts in plants and some organisms use sunlight, water and carbon dioxide to create food or energy.

Convert 369
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Researchers split water by altering photosynthetic machinery in plants; semi-artificial photosynthesis

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They used natural sunlight to convert water into hydrogen and oxygen using a mixture of biological components and manmade technologies. Their method also managed to absorb more solar light than natural photosynthesis. —Katarzyna Sokó?, first author and PhD student at St John’s College.

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ExxonMobil, Georgia Tech and Imperial College London publish joint research on potential breakthrough in membrane technology for oil refining

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With this application in mind, we created spirocyclic polymers with N-aryl bonds that demonstrated noninterconnected microporosity in the absence of ladder linkages. The resulting glassy polymer membranes demonstrated nonthermal membrane fractionation of light crude oil through a combination of class- and size-based “sorting” of molecules.

Georgia 337
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Audi introduces new CNG A3 Sportback

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The cylinder head, injection system, turbocharger and catalytic converter were modified accordingly for the CNG engine. The ultra high-strength outer shell comprises two layers: an inner layer of carbon fiber-reinforced polymer (CFRP) and an outer layer of glass fiber-reinforced polymer (GFRP).

Audi 504
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Tunable high-yield catalytic approach converts pyrolysis oil to bio-hydrocarbon chemical feedstocks including fuel additives

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However, the resulting bio-oils are typically high in oxygen, water, solids and acids. The zeolite catalyst then converts these hydrogenated products into light olefins and aromatic hydrocarbons in a yield as much as three times higher than that produced with the pure pyrolysis oil. Credit: Science , Vispute et al.

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MIT researchers propose mechanism for overcoming bottleneck in electroreduction of CO2

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Researchers at MIT have identified , quantified, and modeled a major reason for the poor performance of electroreduction processes to convert CO 2 to fuel or other useful chemicals. The findings could spur progress on developing a variety of materials and designs for electrochemical carbon dioxide conversion systems.

MIT 284
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UC Berkeley hybrid semiconductor nanowire-bacteria system for direct solar-powered production of chemicals from CO2 and water

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Researchers at UC Berkeley have developed an artificial photosynthetic scheme for the direct solar-powered production of value-added chemicals from CO 2 and water using a two-step process involving a biocompatible light-capturing nanowire array with a direct interface with microbial systems. —Liu et al.

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