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LYB buys in on plastics recycling co., a podcast to stream, and more to know this week

Looking back at top energy transition news from the year, a podcast to stream, and more of what to know going into the last week of 2023. Photo via Getty Images

Editor's note: It's a new week — start it strong with three quick things to catch up on in Houston's energy transition: looking back on top news from 2023, a podcast to stream, and more.

LYB acquires German plastic waste sourcing and engineering company

Houston-based LyondellBasell, rebranded recently to LYB, announced earlier this month that it has acquired a minority share in Source One GmbH, Leiferde, Germany, a plastic waste sourcing and engineering company, that specializes specifically in solutions for hard-to-recycle post-consumer plastic waste. This investment gives LYB access to Source One's engineering and plastic waste sourcing services, according to a news release.

"We are committed to support the growing demand of our customers for circular solutions," says Yvonne van der Laan, LyondellBasell executive vice president of Circular and Low Carbon Solutions, in the news release. “With the investment in Source One we are taking another important step to secure access to plastic waste for our recycling activities and to strengthen our Circulen product portfolio of material made from recyclable or renewable resources.”

Podcast: Moji Karimi of Cemvita talks COP28, growth of the company, and more

Moji Karimi, CEO and co-founder of Cemvita, joined the Houston Innovators Podcast last week before he had even recovered from jet lag to talk about his biggest takeaways from 2023 United Nations Climate Change Conference or Conference of the Parties, more commonly known as COP28.

"It was a pretty amazing experience," Karimi says, comparing the event to how CERAWeek has evolved to really have a strong presence in its innovation-focused track called Agora. "This year you had a massive section for innovation and sustainability. I think that will become a theme in COP29 and beyond to bring entrepreneurs, investors, and more participating in the event."

Karimi's three big observations are outlined here, as is the full podcast with him sharing more about Cemvita's growth this year.

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A View From HETI

Rice's Atin Pramanik and a team in Pulickel Ajayan's lab shared new findings that offer a sustainable alternative to lithium batteries by enhancing sodium and potassium ion storage. Photo by Jeff Fitlow/Courtesy Rice University

A new study by researchers from Rice University’s Department of Materials Science and NanoEngineering, Baylor University and the Indian Institute of Science Education and Research Thiruvananthapuram has introduced a solution that could help develop more affordable and sustainable sodium-ion batteries.

The findings were recently published in the journal Advanced Functional Materials.

The team worked with tiny cone- and disc-shaped carbon materials from oil and gas industry byproducts with a pure graphitic structure. The forms allow for more efficient energy storage with larger sodium and potassium ions, which is a challenge for anodes in battery research. Sodium and potassium are more widely available and cheaper than lithium.

“For years, we’ve known that sodium and potassium are attractive alternatives to lithium,” Pulickel Ajayan, the Benjamin M. and Mary Greenwood Anderson Professor of Engineering at Rice, said in a news release. “But the challenge has always been finding carbon-based anode materials that can store these larger ions efficiently.”

Lithium-ion batteries traditionally rely on graphite as an anode material. However, traditional graphite structures cannot efficiently store sodium or potassium energy, since the atoms are too big and interactions become too complex to slide in and out of graphite’s layers. The cone and disc structures “offer curvature and spacing that welcome sodium and potassium ions without the need for chemical doping (the process of intentionally adding small amounts of specific atoms or molecules to change its properties) or other artificial modifications,” according to the study.

“This is one of the first clear demonstrations of sodium-ion intercalation in pure graphitic materials with such stability,” Atin Pramanik, first author of the study and a postdoctoral associate in Ajayan’s lab, said in the release. “It challenges the belief that pure graphite can’t work with sodium.”

In lab tests, the carbon cones and discs stored about 230 milliamp-hours of charge per gram (mAh/g) by using sodium ions. They still held 151 mAh/g even after 2,000 fast charging cycles. They also worked with potassium-ion batteries.

“We believe this discovery opens up a new design space for battery anodes,” Ajayan added in the release. “Instead of changing the chemistry, we’re changing the shape, and that’s proving to be just as interesting.”

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