Omachi, HarukaInoue, TsukasaHatao, ShuyaShinohara, HisanoriCriado, AlejandroYoshikawa, HirofumiSyrgiannis, ZoisPrato, Maurizio2024-08-082024-08-082020-02-11H. Omachi, T. Inoue, S. Hatao, H. Shinohara, A. Criado, H. Yoshikawa, Z. Syrgiannis, M. Prato, Angew. Chem. 2020, 132, 7910.0044-82491521-3757 (eISSN)1433-7851 (International edition)1521-3773 (International edition eISSN)http://hdl.handle.net/2183/38458[Abstract]: The concise synthesis of sulfur-enriched Graphene for battery applications is reported. The direct treatment of graphene oxide (GO) with the commercially available Lawesson’s reagent produced sulfur-enriched-reduced GO (S-rGO). Various techniques, such as X-ray photoelectron spectroscopy (XPS), confirmed the occurrence of both sulfur functionalization and GO reduction. Also fabricated was a nanohybrid material by using S-rGO with polyoxometalate (POM) as a cathode-active material for a rechargeable battery. Transmission electron microscopy (TEM) revealed that POM clusters were individually immobilized on the S-rGO surface. This battery, based on a POM/S-rGO complex, exhibited greater cycling stability for the charge-discharge process tan a battery with nanohybrid materials positioned between the POM and nonenriched rGO. These results demonstrate that the use of sulfur-containing groups on a graphene surface can be extended to applications such as the catalysis of electrochemical reactions and electrodes in other battery systems.eng© 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.ClusterverbindungenGraphenPolyoxometallateSchwefelOberflächenchemieCluster compoundsGraphenePolyoxometalatesSulfurSurface chemistryjournal articleopen access10.1002/anie.201913578 (Deutsche Ausgabe)10.1002/ange.201913578 (Internationale Ausgabe)