Related Experiment Video
Updated: Jan 27, 2026

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
Published on: September 20, 2012
Contact angle hysteresis of a water droplet on a hydrophobic fuel cell surface
1State Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China.
Abstract:
The contact angle hysteresis is an important parameter influencing the micro-size droplet wetting on the solid surface. In this study, a theoretical method for calculating the contact angle hysteresis of a moving water droplet on the gas diffusion layer (GDL) surface in a proton exchange membrane (PEM) fuel cell flow channel is developed through the force analysis. Correlations for the contact angle hysteresis are investigated. It is found that the contact angle hysteresis increases with the sliding angle, the static contact angle and the water droplet size. The contact angle hysteresis is also influenced by the water spreading shape and the distribution of the dynamic contact angle.
Related Concept Videos
Contact Angle
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
Batteries and Fuel Cells
Transmission-based Precautions I: Contact, Enteric, and Droplets
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Contact-dependent Signaling
Gap Junctions
In animal cells, gap junctions are formed...
Cell-surface Signaling
Water and Mineral Acquisition

