Practical and scalable synthesis of sulfonated graphene

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• 作者：Nicolas Oger^a ; Yuting F. Lin^a ; Christine Labrugè ; re^b ; Erwan Le Grognec^a ; Franck Rataboul^c ; ; Franç ; ois-Xavier Felpin^a ; ^d ; ^{fx.felpin@univ-nantes.fr" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Carbon
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：96
• 期：Complete
• 页码：342-350
• 全文大小：2534 K

文摘

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.