Concise, Single-Step Synthesis of Sulfur-Enriched Graphene: Immobilization of Molecular Clusters and Battery Applications
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Concise, Single-Step Synthesis of Sulfur-Enriched Graphene: Immobilization of Molecular Clusters and Battery ApplicationsAuthor(s)
Date
2020-02-11Citation
H. Omachi, T. Inoue, S. Hatao, H. Shinohara, A. Criado, H. Yoshikawa, Z. Syrgiannis, M. Prato, Angew. Chem. 2020, 132, 7910.
Abstract
[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.
Keywords
Clusterverbindungen
Graphen
Polyoxometallate
Schwefel
Oberflächenchemie
Cluster compounds
Graphene
Polyoxometalates
Sulfur
Surface chemistry
Graphen
Polyoxometallate
Schwefel
Oberflächenchemie
Cluster compounds
Graphene
Polyoxometalates
Sulfur
Surface chemistry
Editor version
Rights
© 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.
ISSN
0044-8249
1521-3757 (eISSN)
1433-7851 (International edition)
1521-3773 (International edition eISSN)
1521-3757 (eISSN)
1433-7851 (International edition)
1521-3773 (International edition eISSN)