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Category: sustainability – Page 120

“The key take-home from this study is that small electric aircraft can have a notably lower climate impact – up to 60 percent less – and other types of environmental impacts than equivalent fossil-fueled aircraft,” said Dr. Rickard Arvidsson.

In a time when electric cars are increasing in number around the world and contributing to a greener future, can electric aircraft do the same? This is what a recent study published in The International Journal of Life Cycle Assessment hopes to address as a team of researchers from the Chalmers Institute of Technology in Sweden investigated the environmental impact of an electric aircraft versus a fossil fuel-based counterpart. This study holds the potential to help better understand the pros and cons of electric aircraft while underscoring their environmental impact for both the short-and long-term.

For the study the researchers conducted a life cycle assessment of a “Pipistrel Alpha Electro” aircraft and a fossil fuel-based aircraft to determine which was more environmentally friendly. The Alpha Electro’s structure consisted of an approximately 10-meter (33-feet) wingspan and weighs 550 kg (1212 pounds) at full weight. It was powered by a 21 kWh NMC (nickel-manganese cobalt) lithium-ion battery, resulting in a 60 kW engine output. The fossil fuel-based aircraft was comprised of the same structure as the Alpha Electro aside from the gas engine and fuel tank. The goal of the study was to ascertain when the Alpha Electro obtains a “break-even” point with its gas-powered counterpart in terms of the overall environmental impact.

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A research team led by Lawrence Berkeley National Laboratory (Berkeley Lab) has developed “supramolecular ink,” a new technology for use in OLED (organic light-emitting diode) displays or other electronic devices. Made of inexpensive, Earth-abundant elements instead of costly scarce metals, supramolecular ink could enable more affordable and environmentally sustainable flat-panel screens and electronic devices.

“By replacing precious metals with Earth-abundant materials, our ink technology could be a game changer for the OLED industry,” said principal investigator Peidong Yang, a faculty senior scientist in Berkeley Lab’s Materials Sciences Division and professor of chemistry and materials science and engineering at UC Berkeley.

“What’s even more exciting is that the technology could also extend its reach to organic printable films for the fabrication of wearable devices as well as luminescent art and sculpture,” he added.

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Walmart-backed EV startup Canoo has announced that deliveries of its all-electric commercial van have officially begun – and the first production Canoo LDV 130 vans are already hard at work.

The first batch of Canoo’s electric vans are reportedly in service now at Kingbee, a national work-ready van rental provider. The company says the delivery of vans to Kingbee is consistent with its previously announced “phased ramp-up manufacturing approach,” and asserts that additional customer deliveries will continue throughout 2024.

Canoo had previously delivered vehicles to NASA, the US military, and the State of Oklahoma (its home state) for testing. The vans delivered to Kingbee, however, seem to be the first that will be accessible to “the public.”

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This includes familiar tasks such as rotating the tires, replacing various fluids, and changing out cabin air filters. There are also a number of EV-specific services that drivers of these battery-electric vehicles need to keep on top of.

The National Renewable Energy Laboratory of the United States predicts today’s EV batteries will have service lives between 12 and 15 years if used in moderate climates. This falls to between 8 and 12 years if regular use occurs in extreme environments.

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MIT researchers devise new lithium-ion battery material to provide a more sustainable alternative to cobalt-containing batteries for electric cars.

With electric vehicles on the rise in the time of climate change, scientists have been working towards developing more sustainable batteries to prevent excessive waste.

Recently, MIT researchers devised a new lithium-ion battery material that could provide a more sustainable alternative to cobalt-containing batteries for electric cars.

MIT reports that in a new study, the researchers demonstrated a newly developed material, produced at a significantly lower cost than batteries containing cobalt, exhibits comparable electrical conductivity to cobalt batteries.

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Despite this historic feat achieved by the Smart Lander for Investigating Moon (SLIM), challenges persist.

The mission team established immediate communication with the lander post-landing, but concerns arose as the solar cell struggled to generate electricity.

Japan Aerospace Exploration Agency (JAXA) decided to switch off the Moon lander almost three hours after the historic landing.

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Many electric vehicles are powered by batteries that contain cobalt — a metal that carries high financial, environmental, and social costs.

MIT researchers have now designed a battery material that could offer a more sustainable way to power electric cars. The new lithium-ion battery includes a cathode based on organic materials, instead of cobalt or nickel (another metal often used in lithium-ion batteries).

In a new study, the researchers showed that this material, which could be produced at much lower cost than cobalt-containing batteries, can conduct electricity at similar rates as cobalt batteries. The new battery also has comparable storage capacity and can be charged up faster than cobalt batteries, the researchers report.

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A stable, reactive, and cost-effective ruthenium catalyst for sustainable hydrogen production through proton exchange membrane water electrolysis.

Sustainable electrolysis for green hydrogen production is challenging, primarily due to the absence of efficient, low-cost, and stable catalysts for the oxygen evolution reaction in acidic solutions. A team of researchers has now developed a ruthenium catalyst by doping it with zinc, resulting in enhanced stability and reactivity compared to its commercial version. The proposed strategy can revolutionize hydrogen production by paving the way for next generation electrocatalysts that contribute to clean energy technologies.

Electrolysis and Catalyst Challenges.

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