六方氮化硼
材料科学
碳纤维
六方晶系
墨水池
化学工程
硼
纳米技术
氮化硼
化学
复合材料
有机化学
结晶学
石墨烯
复合数
工程类
作者
Nikolaos Chalmpes,Athanasios B. Bourlinos,Ahmed Wasel Alsmaeil,Abdulaziz S. Aljarrah,Constantinos E. Salmas,Michael A. Karakassides,Emmanuel P. Giannelis
标识
DOI:10.1088/2053-1591/ad2d42
摘要
Abstract Hypergolic reactions have emerged as a new synthetic approach enabling the rapid production of a diverse set of materials at ambient conditions. While hypergolic reactions bear several similarities to the well-established flame spray pyrolysis (FSP), the former has only recently been demonstrated as a viable approach to materials synthesis. Here we demonstrate a new pathway to 2D materials using hypergolic reactions and expand the gallery of nanomaterials synthesized hypergolically. More specifically, we demonstrate that ammonia borane complex, NH3BH3, or 4-fluoroaniline can react hypergolically with fuming nitric acid to form hexagonal boron nitride/fluorinated carbon nanosheets, respectively. Structural and chemical features were confirmed with x-Ray diffraction, infrared, Raman, XPS spectroscopies and N2 porosimetry measurements. Electron microscopy (SEM and TEM) along with atomic force microscopy (AFM) were used to characterize the morphology of the materials. Finally, we applied Hansen affinity parameters to quantify the surface/interfacial properties using their dispersibility in solvents. Of the solvents tested, ethylene glycol and ethanol exhibited the most stable dispersions of hexagonal boron nitride (h-BN). With respect to fluorinated carbon (FC) nanosheets, the suitable solvents for high stability dispersions were dimethylsulfoxide and 2-propanol. The dispersibility was quantified in terms of Hansen affinity parameters (δd, δp,δh) = (16.6, 8.2, 21.3) and (17.4, 10.1, 14.5) MPa1/2 for h-BN and FC, respectively.
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