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The US Department of Energy (DOE) will award up to $24 million for research into technology that captures carbon emissions directly from the air, replicating the way plants and trees absorb CO 2. ( DOE supports the search for carbon removal solutions at both the basic and applied science levels. DE-FOA-0002481 ).
There is a high degree of variability in the carbon intensity of hydrogen production, even using the same technologies or pathways. The creation and adoption of these technical protocols will help build and harmonize the hydrogen market, contextualize climate solutions, advance transparency and support global trade in low-carbon hydrogen.
“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. Our analysis assumes that captured carbon dioxide can be stored indefinitely, an optimistic and unproven assumption.
The Honda technology builds off of the research conducted by the University of Delaware and now supported by NRG Energy, Inc. The University of Delaware has been developing the technology so that vehicle batteries can be used not only for mobility but also for grid services. through their eV2g joint venture ( earlier post ).
Now, researchers at Michigan Technological University have demonstrated a carbonate-superstructured solid fuel cell (CSSFC) in which in situ generation of superstructured carbonate in the porous samarium-doped ceria layer creates a unique electrolyte with ultrahigh ionic conductivity of 0.17 S⋅cm −1 at 550 °C. . … 2208750119
Scientists at the University of Delaware are developing a new low-cost material for hydrogen storage—carbonized chicken feathers (CCFF)—that they say could meet the DOE requirements for hydrogen storage and are competitive with carbon nanotubes and metal hydrates at a tiny fraction of their cost.
Researchers at Wuhan University (China) have synthesized a Sb/C (antimony/carbon) nanocomposite for use as an anode material in a room-temperature sodium-ion (Na-ion) battery. A comparison of the cycling capacities of the metallic Sb and the Sb/C nanocomposite electrode at a current rate of 100 mA/g. Source: Yang et al.
Researchers at the University of Delaware have demonstrated a direct ammonia fuel cell (DAFC) prototype with a peak power density of 135 mW cm ?2. Source-to-tank cost comparison of carbon-neutral transportation fuels. Source-to-tank cost comparison of carbon-neutral transportation fuels. Zhao et al. Zhao et al.
A study by researchers at CU Boulder and Edinburgh Napier University finds that high-density, low-rise environments such as those found in Paris are the optimal urban form when looking to reduce greenhouse gas emissions over their whole life cycle. There is a growing belief that building taller and denser is better. —Jay Arehart.
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.
Researchers from Michigan State University have been awarded $2.5 The WDG also can reduce carbon dioxide emissions by as much as 95 percent in comparison to modern internal combustion vehicle engines. Schematic model of a wave disk engine, showing combustion and shockwaves within the channels. Source: MSU. Click to enlarge.
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. DeCicco 2013. Click to enlarge.
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.
Ricardo will host a conference on the challenges and potential solutions for auxiliary power units (APUs), waste energy recovery, and parasitic loss reduction in electric and other low carbon vehicles. The conference will conclude with a comparison of range extended electric vehicles to other low carbon powertrain architectures.
Comparison of n-alcohols synthesis via the fatty acid biosynthesis pathway (top) and the engineered reversal of the ?-oxidation Advanced (long-chain) fuels and chemicals are generated from short-chain metabolic intermediates through pathways that require carbon-chain elongation. oxidation cycle (bottom). Dellomonaco et al.
Authors of the paper are Rathin Datta, cellulosic ethanol company Coskata’s chief scientific officer; Mark Maher, executive director, powertrain/vehicle integration, GM Powertrain; Coleman Jones, GM biofuels implementation manager; and Richard Brinker, Dean and Professor of Forestry and Wildlife Sciences, Auburn University.
The Project LEVA lightweight chassis technology is being shown at the Low Carbon Vehicle event staged by Cenex, the UK’s Low Carbon and Fuel Cells Centre of Excellence, at Millbrook Proving Ground, Bedfordshire, UK, on 22/23 September.
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. prepared a carbon material with interconnected pores in two size ranges.
Researchers at the University of Waterloo have now shown that the lightweight superconductor MgB 2 (magnesium diboride)—the average mass/atom of which is comparable with carbon—as a metallic sulfur host fulfills both electron conduction and polysulfide immobilization properties.
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.
Comparison of the discharge capacity and coulombic efficiency of MPSPs/PPAN anodes at various ratios versus cycle number. The carbon, in turn, improves the stability of the solid electrolyte interface (SEI), offers structural integrity and high electric conductivity. Thakur et al. Click to enlarge. Earlier post.)
Bottom: Comparison of specific capacity and Coulombic efficiency as a function of cycle numbers for electrodes assembled with and without graphene wrapping. As a comparison, the capacity of an electrode assembled without graphene wrapping decayed significantly with a 10 times high rate (0.40% per cycle after 200 cycles). Batteries'
(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). Credit: ACS, Shui et al. Click to enlarge. —Shui et al.
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.
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. Some studies have demonstrated that carbon coating of graphite improves the anode performance in LIBs. Credit: ACS, Lin et al.
Ranges of automotive fuel cell system costs at mass manufactured volume using technology from three UK companies supported by the Carbon Trust. Source: Carbon Trust. It would also reduce global carbon emissions from vehicles by an additional 260 million tonnes per year by 2050—equivalent to the current annual emissions of Taiwan.
A group of researchers from Far Eastern Federal University (FEFU), Austria, Turkey, Switzerland, and the UK has developed a new metallic glass that is 85% more efficient in oxidizing methanol than its platinum-based analogs. Fuel cells based on methanol oxidation have potential for the motor and technical industries.
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 57% of the electric current went into producing these two compounds from carbon monoxide). volts to –0.5?volts
The Efficient and Reliable Transportation of Consignments ( ERTOC ) project, part funded by the UK government-backed Technology Strategy Board, has been launched by GS1 UK, Ricardo, Unipart Logistics, IRIS Technology and Coventry University to drive business improvement and sustainability throughout the supply chain from factory to point of sale.
Researchers from Hanyang University in Korea and the BMW Group have developed a new fully operational, practical Li-ion rechargeable battery combining high energy density with excellent cycle life. Comparison of the CNT-Si/TSFCG against the currently developed LIBs. g cm -3 ; a two-sloped full concentration gradient (TSFCG) Li[Ni 0.85
Major ridesourcing companies Uber and Lyft have promised all-electric fleets by 2030 in an effort to reduce their carbon footprint. Overall, electrification reduces net external costs to society by 3–11% (5–24¢ per trip), depending on the assumed social cost of carbon. —Mohan et al. Mohan et al.
Electrochemical performance of the modified hollow carbon nanofiber cathode. (a) b) Comparison of cycling performance at C/2 with and without the PVP modification. The new capacity fading mechanism relates to the detachment of lithium sulfide from the carbon surface during the discharge process. Credit: ACS, Zheng et al.
Researchers from the University of Illinois at Chicago (UIC) have identified molybdenum disulfide as a promising cost-effective substitute for noble metal catalysts for the electrochemical reduction of carbon dioxide. In other chemical-reduction systems, the only reaction product is carbon monoxide. —Mohammad Asadi.
In an open-access paper in the journal Energy & Fuels, a team from VTT Technical Research Center of Finland, with colleagues from Pacific Northwest National Laboratory (PNNL) and Ghent University, provides an overview of co-processing options for such bio-liquids. The biocrude is more viscous but less dense than FPBO.
Most importantly for this project, acrylonitrile is also the primary building block in carbon fiber composites, which are used for lightweighting applications in automotive and air transportation. —NREL Associate Laboratory Director Adam Bratis and principal investigator of the NREL-led Renewable Carbon Fiber Consortium.
Comparison of discharge capacity and coulombic efficiency vs. cycle number for the freestanding MPSF and MPSF with pyrolyzed PAN composite during galvanostatic charge/discharge tested between 0.07-1.5V Credit: ACS, Thankur et al. Click to enlarge.
The study was led by former CABBI Postdoctoral Researcher Caitlin Moore and her advisor, Carl Bernacchi, Plant Physiologist with the US Department of Agriculture’s Agricultural Research Service and Adjunct Professor of Plant Biology and Crop Sciences at the University of Illinois Urbana-Champaign. Energy sorghum falls somewhere in between.
On the one hand, a shift to natural gas is promoted as climate mitigation because it has lower carbon per unit energy than coal or oil. On the other hand, methane (CH 4 ), the prime constituent of natural gas, is itself a more potent GHG than carbon dioxide (CO 2 ); CH 4. Pacala, Princeton University; James J.
Scientists from Stanford University, SLAC National Accelerator Laboratory and the Technical University of Denmark have identified a new nickel-gallium catalyst that converts hydrogen and carbon dioxide into methanol at ambient pressure and with fewer side-products than the conventional catalyst.
Energy density of the P-carbon supercapacitors compared to commercial carbon (Norit). Researchers from Australia, Ukraine and Spain have found that phosphorus-rich microporous carbons (P-carbons) used in supercapacitors exhibit enhanced supercapacitive performance, are capable of stable operation at voltages larger than 1.3
The study led by University of Nebraska-Lincoln assistant professor Adam Liska, funded through a three-year, $500,000-grant from the US Department of Energy, used carbon dioxide measurements taken from 2001 to 2010 to validate a soil carbon model that was built using data from 36 field studies across North America. Liska et al.
Peabody Energy and GreatPoint Energy signed an agreement to pursue development of coal-to-gas and coal-to-hydrogen projects in the United States and around the world with carbon capture and storage (CCS) that would achieve near-zero carbon emissions, while increasing the production of stranded oil via enhanced oil recovery.
Including biofuels under a cap-and-trade scheme could create a more complete carbon management framework for the transportation fuels sector, according to a new peer-reviewed discussion paper by Dr. John DeCicco. Thus, the carbon accounting system under a fossil-based cap alone is incomplete when it comes to biofuels.”.
If successful, this could allow storage of renewable electricity through electrochemical or enzymatic fixation of carbon dioxide and subsequent storage as carbon-based energy storage molecules including hydrocarbons and non-volatile polymers at high efficiency.
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