Graphene’s journey from hype to prime time, and harvesting lithium from briny water

Science Magazine Podcast

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First up this week, we celebrate 20 years of graphene—from discovery, to hype, and now reality as it finally finds its place in technology and science. Science journalist Mark Peplow joins host Sarah Crespi to discuss graphene’s bumpy journey.

Next, producer Meagan Cantwell talks with Seth Darling, chief science and technology officer for the Advanced Energy Technologies Directorate at Argonne National Laboratory, about two new ways to harvest lithium from water. One approach harnesses sunlight to pull water up through a membrane and collect lithium, whereas the other uses an electrochemical cell to selectively suck lithium up. Finding efficient ways to extract lithium from sources where it’s lower in concentration, such as the ocean, will be crucial as demand increases.

This week’s episode was produced with help from Podigy.

About the Science Podcast

Authors: Sarah Crespi; Meagan Cantwell; Mark Peplow

Episode page: https://www.science.org/doi/10.1126/science.zn17zjt

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