13 papers
Enhancing hydrogen production in alkaline electrolyzers by using an ultra-fast kinetics surfactant
D. Fernández-MartÃnez, G. MartÃn-Zazo, A. Rubio-González +4
The paper investigates how the ultra‑fast‑kinetics surfactant Surfynol 465 improves water electrolysis in alkaline electrolyzers by shortening bubble residence time, lowering overp…
Bubble bursting in a sessile droplet
U. J. Gutiérrez-Hernández, B. Muñoz-Sánchez, A. Agúndez-Cruz +3
We analyzed experimentally and numerically the bursting of a bubble within a sessile droplet. Our experiments show that both sessile droplet curvature and confinement enhance the e…
Effect of surfactant kinetics on the wetting following the drop impact onto rough surfaces
S. RodrÃguez-Aparicio, M. Herreruela-Rosado, M. G. Cabezas +2
We experimentally analyze the effect of a surfactant on wetting following drop impact on rough surfaces, paying special attention to the role of dynamic surface tension. To this en…
Impulsive Hydrodynamic Exfoliation into Monolayer Graphene and Nanofragments by Transonic Flow Focusing
A. Ponce-Torres, A. Rubio-González, J. M. Montanero +2
We propose using Transonic Flow Focusing (TFF) to produce 2D and 0D nanomaterials. This technique focuses liquid suspensions into high-speed micrometer-scale jets, combining extrem…
Interface pinch-off in the presence of a soluble surfactant
M. Rubio, S. RodrÃguez-Aparicio, J. M. Montanero +1
We study numerically and experimentally the breakup of a pendant droplet loaded with a soluble surfactant. We consider the limit in which surfactant sorption is limited only by dif…
Steady cone-jet mode of electrospray for single-cell deposition
D. Fernández-MartÃnez, C. Ferrera, J. M. Montanero +2
We propose using the electrospray cone-jet mode operated near its minimum-flow-rate stability limit for single-cell deposition. Because the jet is much thinner than the cells thems…