Drexel University scientists develop MXene nanoscrolls for energy storage

Scientists at Drexel University have developed a method to transform 2D MXene materials into ultra-small, hollow tube-like structures known as MXene nanoscrolls. This breakthrough, published in the journal Advanced Materials, aims to improve the performance of energy storage devices, sensors, and wearable electronics.

While MXene is a highly conductive 2D nanomaterial, its traditional flat-sheet form can hinder the movement of ions and molecules due to the spacing between stacked layers. By rolling these sheets into 1D nanoscrolls, researchers have created continuous channels that act as “highways” for ion movement, which is critical for the charging and discharging speeds of energy storage systems.

The production process utilizes a “Janus reaction” to create structural asymmetry through controlled chemical environments, causing the material layers to peel and self-roll into tubes. Notably, the research team has successfully produced up to 10 grams of pure nanoscrolls, demonstrating control over their shape, chemical composition, and orientation.