* Corresponding authors

^a College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, P. R. China

^b College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, China

^c Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, China

^d Institute of Environmental Technology, VŠB-Technical University of Ostrava, 17. Listopadu 15, Ostrava, Czech Republic

^e IFW Dresden, 20 Helmholtz Strasse, Dresden 01069, Germany
E-mail: m.ruemmeli@ifw-dresden.de

^f Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze 41-819, Poland

^g School of Natural Sciences, National University of Sciences and Technology, Islamabad 44000, Pakistan

^h School of Chemical and Material Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan