Category Chemistry/Nanotechnology

Turning plastic waste into valuable chemicals with single-atom catalysts

The rapid accumulation of plastic waste is currently posing significant risks for both human health and the environment on Earth. A possible solution to this problem would be to recycle plastic waste, breaking it into smaller molecules that can be used to produce valuable chemicals.

Researchers at Nanjing Forestry University and Tsinghua University recently introduced a new approach to convert polystyrene (PS), a plastic widely used to pack some foods and other products, into toluene, a hydrocarbon that is of value in industrial and manufacturing settings. Their proposed strategy, outlined in a paper published in Nature Nanotechnology, entails heating polystyrene waste in hydrogen and breaking it down into smaller vapor molecules, a process known as hydro-pyrolysis.

Life-cycle a...

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Safe and affordable fast-charging batteries: Multi-layered alkali metal structures open the door to energy of the future

Safe and affordable fast-charging batteries: Multilayered alkali metal structures open the door to energy of the future
Multilayers of alkali metals in carbon-based materials. Credit: Ilya Chepkasov and Alexander Kvashnin/Small

Skoltech scientists conducted a study that advances research on future batteries. Their paper, published in Small, sheds light on recent advances in designing multilayered structures of alkali metals, such as lithium, sodium, and potassium, within carbon anode materials.

This technology has the potential to transform the energy storage market, enabling electric vehicles to charge in minutes and providing green energy with stable, safe, and affordable storage systems.

How multilayered structures improve batteries
For years, ions were believed to form only single-atom layers in a battery’s carbon materials, such as graphite...

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Sunlight split in two: Organic layer promises leap in solar power efficiency

Bright futures: New findings advance solar efficiency
The researchers used equipment to interrogate the behaviour of light and other energy, at ultra-fast speeds. Credit: Richard Freeman / UNSW Sydney

In the race to make solar energy cheaper and more efficient, a team of UNSW Sydney scientists and engineers have found a way to push past one of the biggest limits in renewable technology.

Singlet fission is a process where a single particle of light—a photon—can be split into two packets of energy, effectively doubling the electrical output when applied to technologies harnessing the sun.

In a study appearing in ACS Energy Letters , the UNSW team—known as “Omega Silicon”—showed how this works on an organic material that could one day be mass-produced specifically for use with solar panels.

“A lot of the energy from light in...

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World’s first full-cell dual-cation battery developed in Ireland

World's first full-cell dual-cation battery developed at University of Limerick, Ireland
Postdoctoral fellow, Dr. Syed Abdul Ahad and Associate Professor Hugh Geaney of UL’s Department of Chemical Sciences and Bernal Institute. Credit: Alan Place/UL

Researchers at University of Limerick (UL) have developed a battery that could reshape the future of electric vehicles and portable electronics. Their breakthrough in energy storage technology has seen the development of the world’s first full-cell dual-cation battery.

This innovative system combines lithium and sodium ions to significantly enhance both battery capacity and stability, marking a new frontier in sustainable energy research.

The work, published in Nano Energy, was led by Hugh Geaney, Associate Professor of Chemistry at UL’s Department of Chemical Sciences and Principal Investigator at UL’s Bernal Institute, ...

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