Enhanced Stability of Reduced Graphene Oxide Colloid Using Cross-Linking Polymers

被引：39

作者：

Swain, Akshaya Kumar ^{[1
]}

Bahadur, Dhirendra ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Met Engn & Mat Sci, IITB Monash Res Acad, Mumbai 400076, Maharashtra, India

[2] Indian Inst Technol, Dept Met Engn & Mat Sci, Mumbai 400076, Maharashtra, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 18期

关键词：

VAN-DER-WAALS; SOLUBILITY PARAMETERS; STERIC STABILIZATION; AQUEOUS DISPERSIONS; FACILE SYNTHESIS; GRAPHITE; FUNCTIONALIZATION; EXFOLIATION; REDUCTION; HYDROGELS;

D O I：

10.1021/jp500205n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reduced graphene oxide (RGO) synthesized by subsequent oxidation and reduction suffers from agglomeration within a few hours/days of its preparation. The stability of RGO is enhanced (no agglomeration for more than 23 months) by allowing two cross-linking polymers that prevent restacking; this increases the solubility and biocompatibility of RGO. The RGO dispersion follows an electrosteric stabilization mechanism. Various theoretical models were adopted to understand this behavior by estimating the potential barrier for agglomeration, surface free energy, and Hansen solubility parameters of the dispersion. As-prepared RGO is found to be biocompatible and has luminescent properties.

引用

页码：9450 / 9457

页数：8

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