Colloidal suspensions of N-modified graphene nano-platelets in water and organic solvent/water mixed systems

被引：14

作者：

Lee, Seungjun ^{[1
]}

Potts, Jeffrey R. ^{[2
,3
]}

Oh, Junghoon ^{[1
]}

Han, Jongwoo ^{[1
]}

Park, Gyutae ^{[1
]}

Park, Sungjin ^{[1
]}

机构：

[1] Inha Univ, Dept Chem, 100 Inha Ro, Inchon 402751, South Korea

[2] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA

[3] Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA

来源：

SOLID STATE SCIENCES | 2014年 / 27卷

关键词：

N-Doping; Reduced graphene oxide; Colloidal suspensions; Ammonia; Paper materials; NITROGEN-DOPED GRAPHENE; EXFOLIATED GRAPHITE OXIDE; FUNCTIONALIZED GRAPHENE; AQUEOUS DISPERSIONS; FACILE SYNTHESIS; REDUCTION; SHEETS; NANOSHEETS; FILMS; PAPER;

D O I：

10.1016/j.solidstatesciences.2013.10.009

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The production of colloidal suspensions of graphene-based nano-platelets in large scale is highly important for their use in practical applications. In this work, we developed a new route for generation of colloidal suspensions of N-modified graphene-based nano-platelets (A-rG-O) with high concentration in water or organic solvent/water mixed systems by the reaction between graphene oxide and ammonium hydroxide. Graphene oxide was reduced by the ammonium hydroxide and N atoms (up to 6 at%) were introduced into A-rG-O materials using solution process without further thermal treatment. Such A-rG-O nano-platelets were well dispersed as individual layers in both systems. Macroscopic free-standing A-rG-O paper materials with good electrical conductivity were produced by filtration of such colloidal suspensions. (C) 2013 Elsevier Masson SAS. All rights reserved.

引用

页码：1 / 4

页数：4

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