Practical and scalable synthesis of sulfonated graphene. (January 2016)

• Record Type: Journal Article
• Authors: Oger, Nicolas; Lin, Yuting F.; Labrugère, Christine; Le Grognec, Erwan; Rataboul, Franck; Felpin, François-Xavier
• Is Part Of: Carbon. Volume 96(2016)
• Page Start: 342
• Page End: 350
• Publication Date: 2016-01
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.09.082
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: A synthesis of sulfonated graphene has been developed through a rational investigation of more than 8 different routes. The synthesis involves (1) the preparation of graphene through sequential oxidative exfoliation of graphite to graphene oxide and reduction with hydrazine, (2) the grafting of graphene with 4-diazoniobenzenesulfonate, leading to sulfonated graphene. The procedure features a good and adjustable level of grafting, a high reproducibility, fast filtrations, and a scalability on a gram-scale. The material displayed a high density of relatively strong acid sites along with robustness in its dry state, up to 200 °C.