1. Institute of Environmental EngineeringETH Zürich Stefano‐Franscini‐Platz 3 8093 Zürich Switzerland
2. EmpaSwiss Federal Laboratories for Materials Science and Technology Überland Strasse 129 8600 Dübendorf Switzerland
3. School of Light Industry and EngineeringSouth China University of Technology Guangzhou 510640 China
4. School of Energy and Environmental EngineeringUniversity of Science and Technology Beijing Beijing 100083 China