Fraunhofer researchers develop carbon nanotube thin film heater for EVs

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The heating concept is based on a film that is coated with a very thin layer of conductive carbon nanotubes (CNTs). This would make the production process considerably more economical, particularly in comparison to wire-based solutions, Sahakalkan said.

2015 30

Hanyang/BMW team develops high-energy density Li-ion battery with carbon-nanotube-Si composite anode and NCM concentration gradient cathode

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A carbon nanotube (CNT)-Si composite anode with extremely stable long-term cycling provides a discharge capacity of 2364 mAh g -1 at a tap density of 1.1 Comparison of the CNT-Si/TSFCG against the currently developed LIBs.

2016 35

Trending Sources

New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

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A new black carbon (BC) emissions inventory from China found BC emissions levels in 2007 of 1,957 Gg BC—higher than reported in earlier studies. Black carbon China EmissionsBC emission map of China at 0.1° × 0.1° for year 2007.

2007 20

EPA report to Congress finds a strong scientific and technical foundation for mitigating black carbon emissions

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The US Environmental Protection Agency (EPA) has submitted its final Report to Congress on Black Carbon , in response to an October 2009 request from Congress to advance efforts to understand the role of black carbon (BC) in climate change. —Report to Congress on Black Carbon.

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Study: even with high LDV electrification, low-carbon biofuels will be necessary to meet 80% GHG reduction target; “daunting” policy implications

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An 80% reduction in US greenhouse gas (GHG) emissions by 2050 has been generally established as the de facto required domestic contribution to stabilizing global concentrations at low to medium levels, that is, 450 and 550 ppm carbon dioxide equivalent (CO 2 -equiv).

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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. What is different is that the electrode material that stores the Li is all-carbon for both the anode as well as the cathode.

Up close and personal with Volkswagen’s e-Golf carbon offset project: Garcia River Forest

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This project, to which Volkswagen contributes along with companies such as UPS, repairs and preserves a ~24,000-acre native redwood forest, increasing carbon sequestration and storage, while also helping to restore the natural wildlife habitat. Carbon offsets.

Argonne team finds copper cluster catalyst effective for low-pressure conversion of CO2 to methanol with high activity

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These catalysts work by binding to carbon dioxide molecules, orienting them in a way that is ideal for chemical reactions. These CO 2 conversion catalysts work by binding to carbon dioxide molecules, orienting them in a way that is ideal for chemical reactions.

2015 17

Ford Europe leading project investigating DME and OME1 as low carbon, near zero particulate fuels; power-to-liquids pathways using CO2

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The comparison to the electric vehicle is based on estimates which factor in the CO 2 emissions resulting from fuel production, with the DME-powered vehicle figure calculated from the use of renewable energy to generate the DME fuel, and the electric vehicle figure calculated from electricity generated from renewable resources.

U-Mich researcher’s first-principles analysis challenges conventional carbon accounting for biofuels; implications for climate policy

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System boundaries (red line) schematic for liquid fuel carbon balance. For biofuels, because biogenic carbon is automatically credited within a product lifecycle, the boundary effectively excludes vehicle end-use CO 2 emissions. Biofuel carbon. Carbon captured from energy system.

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California ARB biofuel carbon intensity data for LCFS highlights diversity of ethanol pathways

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g CO 2 e/MJ highlighted in red for comparison. The California Air Resources Board (ARB) staff has updated carbon intensities (CIs) and other information about registered biorefineries, and posted the information at the Low Carbon Fuel Standard (LCFS) biorefinery-registration webpage.

New modeling study finds thawing permafrost could release vast amounts of carbon and accelerate climate change by the end of this century

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Billions of tons of carbon trapped in high-latitude permafrost may be released into the atmosphere by the end of this century as the Earth’s climate changes, further accelerating global warming, a new computer modeling study indicates. Units are in grams of carbon per square meter per year.

Stanford researchers develop copper-based catalyst that produces ethanol from CO at room temperature; potential for closed-loop CO2-to-fuel process

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Researchers at Stanford University have developed a nanocrystalline copper material that produces multi-carbon oxygenates (ethanol, acetate and n-propanol) with up to 57% Faraday efficiency at modest potentials (–0.25?volts We have discovered the first metal catalyst that can produce appreciable amounts of ethanol from carbon monoxide at room temperature and pressure—a notoriously difficult electrochemical reaction. Carbon Capture and Conversion (CCC) Catalysts Ethanol

Researchers find that the global carbon pool in seagrass beds is as much as 19.9B metric tons

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Per unit area, seagrass meadows can store up to twice as much carbon as the world’s temperate and tropical forests, according to a paper this week in the journal Nature Geoscience. The paper, “Seagrass Ecosystems as a Globally Significant Carbon Stock,” is the first global analysis of carbon stored in seagrasses. Pg carbon. Tg carbon per year, assuming that all of the organic carbon in seagrass biomass and the top metre of soils is remineralized.

DOE awards ~$25M to 8 projects for CO2 capture and compression; $15M for novel Direct Fuel Cell system

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The US Department of Energy’s (DOE) National Energy Technology Laboratory (NETL) has selected eight projects to receive almost $25 million in funding to construct small- and large-scale pilots for reducing the cost of CO 2 capture and compression through DOE’s Carbon Capture Program.

Study concludes permanent loss of peatlands in open-pit oil sands mining adds significantly to carbon burden of oil sands production

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Researchers at the University of Alberta (Canada) have quantified the transformation of the boreal landscape by open-pit oil sands mining in Alberta, Canada to evaluate its effect on carbon storage and sequestration. Their analysis suggests that carbon storage loss caused by peatland conversion could be equivalent to as much as 7 years worth of carbon emissions by mining and upgrading (at 2010 levels). million metric tons of stored carbon.

Geely invests in Carbon Recycling Intl.; vehicles fueled by methanol from CO2, water and renewable energy

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million in Carbon Recycling International (CRI). Geely’s CRI investment and work with renewable methanol is similar to the approach Audi is taking with its own e-fuels projects—producing very low carbon liquid or gaseous fuels using only renewable energy, water and CO 2. Renewable methanol is also a low-carbon feedstock for production of synthetic materials. Their results showed that in comparison with gasoline mode, CO emitted in methanol mode decreased 11.2%.

PNNL study outlines requirements for grid storage, reviews four electrochemical energy storage systems: vanadium redox flow, Na-beta, Li-ion and lead-carbon

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published in the ACS journal Chemical Reviews , reviews in detail four stationary storage systems considered the most promising candidates for electrochemical energy storage: vanadium redox flow; sodium-beta alumina membrane; lithium-ion; and lead-carbon batteries. Lead-carbon battery.

Stanford team develops new approach to overcoming capacity fading in Lithium-sulfur batteries

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Electrochemical performance of the modified hollow carbon nanofiber cathode. (a) b) Comparison of cycling performance at C/2 with and without the PVP modification. To overcome this mechanism, they introduced amphiphilic polymers to modify the carbon surface.

Ballard, Nisshinbo collaborate to offer first PEM fuel cell using non-precious-metal catalyst

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Nisshinbo’s Non Precious Metal Catalyst is based on a carbon alloy material which further reduces the cost of an air-cooled fuel cell stack. Nisshinbo has been a long-time leading global supplier of carbon plates used in the construction of PEM fuel cells for various market applications.

2017 26

Stanford team develops new ultrahigh surface area 3D porous graphitic carbon material for improved energy storage

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Stanford University scientists have created a new ultrahigh surface area three-dimensional porous graphitic carbon material that significantly boosts the performance of energy-storage technologies. The maximum surface area achieved with conventional activated carbon is about 3,000 m 2 g –1.

Single Pt atom catalysts show enhanced catalytic activity for water-splitting; potential to drive down electrolysis cost

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In an open-access paper published in Nature Communications , the researchers reported that the single Pt atom catalysts exhibit significantly enhanced catalytic activity (up to 37 times) and high stability in comparison to the state-of-the-art commercial platinum/carbon (Pt/C) catalysts.

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Lawrence Livermore team shows carbon nanotube porins are fastest known proton conductors; potential application for PEM fuel cells

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Lawrence Livermore National Laboratory (LLNL) researchers have shown that 0.8-nm-diameter carbon nanotube porins, which promote the formation of one-dimensional water wires, can support proton transport rates exceeding those of bulk water by an order of magnitude.

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. We need both a policy like a carbon tax and to put more R&D money into renewables. For example, our calculations are based on total carbon emissions ranging from 12,744 to 17,407 gigatons of CO 2.

Toyota delivers fuel cell bus to Tokyo Metropolitan Government; more than 100 planned by 2020 Olympics

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Development and demonstration tests of the Toyota FC Bus were conducted under the Next-Generation Energy and Social Systems Demonstration Project of the Ministry of Economy, Trade and Industry (METI) and the Low Carbon Technology Research and Development Program7 under the Ministry of Environment.

New low-cost, lightweight magnesium sheet alloy with good formability for automotive applications; 1.5x stronger than aluminum

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Comparison of newly developed and conventional magnesium alloy sheets after they were subjected to Erichsen tests. This study was conducted as a part of the JST Advanced Low Carbon Technology Research.

2017 23

Study recommends $10B/year US federal investment in energy RD&D and a substantial price on carbon emissions; leveraging the national labs and encouraging the private sector for a clean energy future

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This includes about $5 billion annually for seven technology areas considered in detail: four energy supply technology areas (nuclear energy, bio-energy, fossil energy with and without carbon capture and sequestration, and solar photovoltaic (PV) energy); one enabling technology area (utility-scale energy storage); and two key areas of energy efficiency (buildings and vehicles).

Researchers improve the performance of sodium-ion batteries by using tailored carbon anodes with hierarchical porosity

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Researchers at Justus Liebig University, Giessen, Germany, have improved the performance of sodium-ion batteries ( earlier post ) by using tailor-made carbon materials with hierarchical porosity for the anode instead of common carbon-based anode materials.

Field study finds soot particles absorb significantly less sunlight than predicted by models; climate models may be overestimating warming by BC

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Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science.

Vertically aligned sulfur-graphene nanowall cathodes for Li-sulfur batteries deliver high capacity and rate performance

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1 in comparison with S-G-2. (d) In this respect, various carbons including mesoporous carbons, microporous carbons, hollow carbon spheres, carbon nanotubes, and graphene have been investigated to produce sulfur?carbon

2015 33

NREL report on electric bus demo at Foothill Transit finds Proterra fuel economy >8x higher than CNG on same line

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However, because Foothill Transit operates its BEB and CNG bus fleets differently, the efficiency results presented are not an apples-to-apples comparison. An apples-to-apples comparison of fuel cost—i.e.,

nanoFLOWCELL to present new QUANT F flow cell EV at Geneva

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With a total tank capacity of 500 liters—2x 250 liters in two tanks accommodated separately in the QUANT’s substructure—the QUANT F has a projected range of 800 km (497 miles)—a 30% increase in comparison to the QUANT E from 2014.

2015 47

Phosphorous-enriched Carbons Increase Performance and Energy Density of Supercapacitors

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Energy density of the P-carbon supercapacitors compared to commercial carbon (Norit). V in H 2 SO 4 and can support an energy density of up to 16 Wh/kg compared to around 5 Wh/kg for conventional commercial carbon.

Toray and Gordon Murray unveil carbon-fiber T-Wave AR1 Concept EV Sports Car

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city EV, earlier post ) to create the T-Wave AR1, a concept EV two-seater to demonstrate the extreme weight savings possible with Toray’s carbon fiber composites. For comparison, the curb weight of the Tesla Roadster is 1,235 kg (2,723 lbs)—46% more than the T-Wave AR1.


GWU team demonstrates one-pot process for optimized synthesis of controlled CNTs from CO2; coupling cement and C2CNT

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Researchers at George Washington University led by Dr. Stuart Licht ( earlier post ) have developed a new process that transforms CO 2 into a controlled selection of nanotubes (CNTs) via molten electrolysis; they call the process C2CNT (CO2 into carbon nanotubes).

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.

Nitrogen?doped coral-like carbon fiber arrays shown to be highly efficient air electrodes for high-performance Li-air batteries

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c) The sketch of Li 2 O 2 grown on a coral-like carbon fiber. A non-aqueous Li-air (Li-O 2 ) battery comprises a metallic lithium anode; a porous cathode (usually carbon-based materials with or without catalysts); and nonaqueous electrolyte (Li þ -containing solution).

Study finds some improved cookstoves may emit more black carbon pollution than traditional mud cookstoves

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The first real-world, head-to-head comparison of improved cookstoves (ICs) and traditional mud stoves has found that some ICs may at times emit more of the black carbon particles that are linked to serious health and environmental concerns than traditional mud stoves or open-cook fires.

Improving the Charge-Discharge Capacity and Cycleability of Carbon Electrodes for Li-ion Batteries

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GMP40 (60:40 weight ratio of mixed mesophase pitch carbon and phenolic resin) produced the best results. However, carbon remains the predominant commercial anode material solution at this point. The core material is mesophase pitch carbon, which is highly crystalline.

Study shows viability of RCCI in a two-stroke engine; higher efficiency than direct-injection spark ignition

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For their study, the ERC team modified a two-stroke outboard engine to accommodate two direct fuel injectors for RCCI combustion in one cylinder, while the production direct-injection spark ignition combustion system was maintained in the other cylinder for comparison of performances at equivalent operating conditions.