1. Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, Zurich CH-8092, Switzerland
2. EMPA, Swiss Federal Laboratories for Material Science and Technologies, Überlandstrasse 129, Dübendorf 8600, Switzerland
3. Institute for Mechanical Systems, ETH Zurich, Leonhardstrasse 21, Zurich CH-8092, Switzerland