Measurement of Multicomponent Solubility Parameters for Graphene Facilitates Solvent Discovery
Measurement of Multicomponent Solubility Parameters for Graphene Facilitates Solvent Discovery
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DOI：
10.1021/la903188a
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发表时间：
2010-03-02
期刊：
影响因子：
3.9
通讯作者：
Coleman, Jonathan N.
中科院分区：
文献类型：
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作者：
Hernandez, Yenny;Lotya, Mustafa;Coleman, Jonathan N.
我们已经测量了石墨烯在40种溶剂中的溶解度，其中28种以前从未报道过。我们已经表明，石墨烯的良好溶剂的特征在于δ（T）的希尔德布兰德溶解度参数类似于23 MPa 1/2，δ（D）的汉森溶解度参数类似于18 MPa 1/2，δ（P）类似于9.3 MPa 1/2，δ（H）类似于7.7 MPa 1/2。对于汉森参数远离这些值的溶剂，λ较小。我们已经使用透射电子显微镜（TEM）分析来显示石墨烯在所有情况下都被很好地剥离。即使在相对较差的溶剂中，>63%的观察到的薄片具有
We have measured the dispersibility of graphene in 40 solvents, with 28 of them previously unreported. We have shown that good solvents for graphene are characterized by a Hildebrand solubility parameter of delta(T) similar to 23 MPa1/2 and Hansen solubility parameters of delta(D) similar to 18 MPa1/2, delta(P) similar to 9.3 MPa1/2, and delta(H) similar to 7.7 MPa1/2. The dispersibility is smaller for solvents with Hansen parameters further from these Values. We have used transmission electron microscopy (TEM) analysis to show that the graphene is well exfoliated in all cases. Even in relatively poor solvents, >63% of observed flakes have