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U Chicago, MIT study suggests ongoing use of fossil fuels absent new carbon taxes

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A paper by a team from the University of Chicago and MIT suggests that technology-driven cost reductions in fossil fuels will lead to the continued use of fossil fuels—oil, gas, and coal—unless governments pass new taxes on carbon emissions. Their analysis is published in the Journal of Economic Perspectives.

Chicago 150
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MIT team develops first supercapacitor made entirely from neat MOFs, without conductive additives or binders

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Researchers at MIT have shown that a MOF (metal-organic framework) with high electrical conductivity—Ni 3 (2,3,6,7,10,11-hexaiminotriphenylene) 2 (Ni 3 (HITP) 2 )—can serve as the sole electrode material in a supercapacitor.

MIT 150
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RPI researchers develop safe, long-cycling Li-metal rechargeable battery electrode; demonstrate Li-carbon battery

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Ce 0.02 (PO 4 ) 3 /C) measured at comparable current densities has been included for comparison. The RPI team also demonstrated the use of the PGN material as a high-capacity anode, and demonstrated a full-cell configuration with a PGN anode and a lithium-metal/PGN cathode, thus creating a Li-carbon rechargeable battery. Background.

Recharge 252
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New FOX method estimates black carbon emissions from civil aviation ~2.7 times higher than standard estimates

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Comparison between estimated EI BC and measured EI BC derived FOA3 (black open box), the FOA3 approach with the updated SN-CI correlation (blue triangle), and estimates obtained from the new FOX method (red circle) that are not dependent on SN. Barrett (2013) Global Civil Aviation Black Carbon Emissions. Credit: ACS, Stettler et al.

Emissions 199
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Stretchable Batteries Make Flexible Electronics More So

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“For many applications, such as wearables, stretchability is necessary since our skin stretches as we move,” said James Pikul , a professor of mechanical engineering at the University of Wisconsin, Madison. “A The wire battery uses a metal anode, typically zinc, and a carbon cloth loaded with platinum, as the “air” cathode.

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MIT Researchers Find That Elastic Energy Storage Systems Built With Carbon Nanotubes Could Match Li-ion Battery Energy Densities

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Densities for steel springs and Li-ion batteries provide a comparison. Carol Livermore, associate professor of mechanical engineering and her team used an ordered grouping of carbon nanotubes (CNT) as a spring to store elastic energy for later use—much as a steel spring stores energy in a mechanical watch. Hill et al.

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New Study Finds Flaw in Carbon Accounting for Bioenergy, Another Contends That Indirect Land Use Change Emissions for Biofuels Will Be Up To Twice Direct Land Use Change Emissions

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Thirteen scientists and land use experts conclude in a new paper that an important but fixable error in legal accounting rules used to measure compliance with carbon limits for bioenergy could undermine efforts to reduce greenhouse gas emissions by encouraging deforestation. Their paper is published in the 23 Oct. Accounting rules.

Emissions 285