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Category: sustainability – Page 110

The world’s fastest single-shot 2D imaging technique films ultrafast dynamics in flames

Candle flames and airplane engines produce tiny soot particles from polycyclic aromatic hydrocarbons (PAHs) as their precursors, both of which are harmful to humans and the environment. These carbon-based particles are also common in space, making up 10–12% of interstellar matter, and are becoming valuable for use in electronic devices and sustainable energy. However, the fingerprint signals of soot and PAHs have very short lifespans in flames—lasting only a few billionths to millionths of a second. This brief existence requires very fast cameras to capture their behavior in both space and time.

Memory Breakthrough: Helical Magnets Pave the Way for Next-Gen Storage

Researchers have developed a new magnet-based memory device using helical magnets, promising high-density, non-volatile storage without magnetic field crosstalk.

This breakthrough offers a sustainable solution to current challenges in information storage, with potential for large-scale integration and high durability.

A team of scientists has proposed a new concept for magnet-based memory devices, which might revolutionize information storage devices owing to their potential for large-scale integration, non-volatility, and high durability.

Tesla chooses interesting location for Robotaxi unveiling event

Tesla has reportedly chosen its location for the Robotaxi unveiling event on October 10, and it is quite interesting.

According to a new report from Bloomberg, citing people familiar with the matter, Tesla is planning to show off its new Robotaxi platform, along with “a few other things,” at the Warner Brothers Studio in Burbank, California.

Tesla initially planned to hold its unveiling event on August 8, but it was pushed back to October 10 due to a request for a front-end design change by CEO Elon Musk, who also hinted there would be more to show at the event with the delayed date.

Rare earth single atoms enhance manganese oxide’s electrochemical oxygen evolution

An international group of researchers has developed a novel approach that enhances the efficiency of the oxygen evolution reaction (OER), a key process in renewable energy technologies. By introducing rare earth single atoms into manganese oxide (MnO2), the group successfully modulated oxygen electronic states, leading to unprecedented improvements in OER performance.

Beyond Einstein: Attosecond X-Ray Pulses Unlock the Secrets of the Photoelectric Effect

Researchers at SLAC have made groundbreaking strides in understanding the photoelectric effect, initially described by Einstein.

They’ve developed a technique using attosecond X-ray pulses to measure electron-emission delays, revealing discrepancies in existing theories by showing larger-than-expected delays. Their method provides a new tool to study electron-electron interactions, which are fundamental to many technologies, including semiconductors and solar cells.

New Photoelectric Effect Insights

Study of disordered rock salts leads to battery breakthrough

For the past decade, disordered rock salt has been studied as a potential breakthrough cathode material for use in lithium-ion batteries and a key to creating low-cost, high-energy storage for everything from cell phones to electric vehicles to renewable energy storage.

A new MIT study is making sure the material fulfills that promise.

Led by Ju Li, the Tokyo Electric Power Company Professor in Nuclear Engineering and professor of materials science and engineering, a team of researchers describe a new class of partially disordered rock salt cathode, integrated with polyanions—dubbed disordered rock salt-polyanionic spinel, or DRXPS—that delivers at high voltages with significantly improved cycling stability.

Solid-state electrolyte advance could double energy storage for next-gen vehicles

Using a polymer to make a strong yet springy thin film, scientists led by the Department of Energy’s Oak Ridge National Laboratory are speeding the arrival of next-generation solid-state batteries. This effort advances the development of electric vehicle power enabled by flexible, durable sheets of solid-state electrolytes.

The sheets may allow scalable production of future solid-state batteries with higher energy density electrodes. By separating negative and positive electrodes, they would prevent dangerous electrical shorts while providing high-conduction paths for ion movement.

These achievements foreshadow greater safety, performance and compared to current batteries that use liquid electrolytes, which are flammable, chemically reactive, thermally unstable and prone to leakage.

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