Abstract
Solvothermal processes are considered efficient approaches for the gram-scale production of graphene. Further modification of graphene by chemical doping is an important approach to tailor its properties. In this work, we successfully synthesized sulfur-doped graphene by using a solvothermal method with dimethyl sulfoxide as a precursor, which is a common laboratory reagent. Nitrogen-doped graphene was produced to demonstrate the generality of this process. These heteroatom-doped graphene materials exhibited high surface areas and high contents of heteroatoms. Furthermore, the lithium-ion storage properties and oxygen reduction reaction catalytic activity of these materials were also investigated. The success of this approach might facilitate the development of other advanced graphene-based materials with relative simplicity, scalability, and cost effectiveness for use in various potential applications.
Highlights
Solvothermal processes are considered efficient approaches for the gram-scale production of graphene
N-doped graphene has been produced by various approaches that can be categorized into two kinds of methods: direct synthesis such as chemical vapor deposition (CVD), arc-discharge, segregation growth, and solvothermal methods; and post treatment such as thermal, hydrazine hydrate, and plasma treatments[15,20,21,22]
In summary, heteroatom (S or N)-doped graphenes were successfully synthesized by using a simple, single-step solvothermal method with heteroatom-containing organic molecules as precursors
Summary
Solvothermal processes are considered efficient approaches for the gram-scale production of graphene. The lithium-ion storage properties and oxygen reduction reaction catalytic activity of these materials were investigated The success of this approach might facilitate the development of other advanced graphene-based materials with relative simplicity, scalability, and cost effectiveness for use in various potential applications. Stride and co-workers demonstrated that graphene can be prepared by using a solvothermal method with ethanol as the carbon source[26], and the reaction is relatively mild and simple[27] It provides for a gram-scale production of graphene. We describe a novel approach to fabricate S-doped graphene via a solvothermal method using S-containing organic molecules as a precursor. N-doped graphene was synthesized using dimethylformamide (CH3CH3NCOH, DMF), which is a N-containing organic molecule These precursors are commonly used as low-cost solvents. The lithium-ion storage properties and electrocatalytic behaviors of heteroatomic-doped graphene were investigated
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
