1. Qingdao New Energy Shandong Laboratory Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences 189 Songling Road Qingdao 266101 China
2. Shandong Energy Institute 189 Songling Road Qingdao 266101 China
3. Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute 5 (PGI-5) Forschungszentrum Jülich Wilhelm-Johnen-Straße 52425 Jülich Germany
4. GTT-Technologies Kaiserstraße 103 52134 Herzogenrath Germany