How wetting and adhesion affect thermal conductance of a range of hydrophobic to hydrophilic aqueous interfaces.
We quantify the strength of interfacial thermal coupling at water-solid interfaces over a broad range of surface chemistries from hydrophobic to hydrophilic using molecular simulations. We show that the Kapitza conductance is proportional to the work of adhesion-a wetting property of that interface-enabling the use of thermal transport measurements as probes of the molecular environment and bonding at an interface. Excellent agreement with experiments on similar systems [Z. B. Ge, Phys. Rev. Lett. 96, 186101 (2006)10.1103/PhysRevLett.96.186101] highlights the convergence of simulation and experiments on these complex nanoscopic systems.
Shenogina
Natalia
N
Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
Godawat
Rahul
R
Keblinski
Pawel
P
Garde
Shekhar
S