Functionalization of hexagonal boron nitride in large scale by a low-temperature oxidation route

被引：33
作者：
Jin, Han [1 ]
Li, Yongfeng [2 ,3 ,4 ]
Li, Xiaodan [1 ]
Shi, Zhongqi [1 ]
Xia, Hongyan [1 ]
Xu, Zhuo [2 ,3 ]
Qiao, Guanjun [1 ,5 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[2] Xi An Jiao Tong Univ, Minist Educ, Key Lab, Elect Mat Res Lab, Xian 710049, Peoples R China
[3] Xi An Jiao Tong Univ, Int Ctr Dielectr Res, Xian 710049, Peoples R China
[4] Xian Univ Posts & Telecommun, Sch Elect Engn, Xian 710121, Peoples R China
[5] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 175卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Hexagonal boron nitride; Functionalization; Oxidation; Surfaces; Mechanism; COMPOSITES; NANOSHEETS; MECHANISM; GRAPHENE; BN; EXFOLIATION; MICROSTRUCTURE; NANOTUBES; DEFECTS; OXIDE;
D O I：
10.1016/j.matlet.2016.04.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A simple and effective method to functionalize hexagonal boron nitride (hBN) was demonstrated by low temperature (600 degrees C) oxidation of hBN powders in air. An oxygen-rich amorphous layer was observed on the surface of oxidized hBN particles. Compared to raw hBN, the oxidized hBN particles showed better affinity with ethanol. In addition, the oxidation process and mechanism were also investigated in detail. The results showed that the longer oxidation time, the thicker oxidation coating would be formed. In the beginning of oxidation, oxygen could insert into the lattice ascribe to the surface defects of hBN. With oxidation time increasing, more oxygen would embed in the inner of h-BN particles, causing the intense lattice distortion in local zone. With the oxidation process proceeded, the amorphization behavior would appear, and form a coating of amorphous boron oxides on the surfaces of h-BN particles. This method holds great promise for the application of hBN materials. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：244 / 247
页数：4
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