DOI: 10.1002/smll.202505728As part of a Special Invitation Collection celebrating the 15th anniversary of the Global Young Academy (GYA), a UT team led by David Fernandez Rivas has presented new insights into how bubbles behave during hydrogen production. By designing electrodes that guide the formation and merging of bubbles, the team has taken a significant step toward enhancing the efficiency of electrolysis for green hydrogen production. Tiny cavities, controlled bubblesHydrogen is often produced through electrolysis, where bubbles form on electrodes as water splits into hydrogen and oxygen. To overcome this, the UT researchers with access to the Nanolab cleanroom from the MESA+ Institute created silicon electrodes patterned with tiny hydrophobic cavities. More information: Akash Raman et al, Electrolytic Bubble Coalescence on Hydrophobic Cavity Arrays Determines Departure Radius and Lowers Electrolyte Supersaturation, Small (2025).