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个人信息Personal Information
副教授
硕士生导师
任职 : 中国无机盐工业协会硼化工分会秘书长, 全国无机盐信息总站硼化物协作组秘书长, 中国化工学会无机酸碱盐专委会硼化物专家组成员, 辽宁省硼镁资源化工与新材料工程技术研究中心副主任, 辽宁省硼镁特种功能材料制备与应用技术工程实验室副主任, 辽宁省非金属矿工业协会副会长.
性别：男
毕业院校：近畿大学
学位：博士
所在单位：化工学院
学科：化学工艺. 功能材料化学与化工
办公地点：大连理工大学西部校区化工综合楼A610
电子邮箱：jczhong@dlut.edu.cn
Fabrication and characterization of hexagonal boron nitride powder by a precursor conversion method
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论文类型：期刊论文
发表时间：2013-04-01
发表刊物：JOURNAL OF CERAMIC PROCESSING RESEARCH
收录刊物：SCIE、Scopus
卷号：14
期号：2
页面范围：269-273
ISSN号：1229-9162
关键字：Hexagonal Boron Nitride; Melamine; Fabrication; Characterization; Precursor
摘要：The reaction of melamine (C3N6H6) with boric acid (H3BO3) by a wet chemical approach afforded precursor, hexagonal boron nitride was then prepared by the heat treatment of the precursor in the air. An investigation of the effects of melamine to boron acid molar ratio, solution concentration, synthesis temperature and time on the synthesis process of boron nitride has been carried out. The FT-IR, XRD, SEM and elemental analyses revealed that the precursor was identified as a supra-molecular adduct formed by intermolecular hydrogen bond, and the morphology of precursor exhibits rod-like crystals and its molecular formula is C3N6H6 center dot 2H(3)BO(3). Moreover, the better precursor crystals were synthesized by using the molar ratio of 1 : 2 for melamine and boric acid. The rod-like precursor was treated at 800 degrees C-1000 degrees C for 3 h-6 h in the air to afford products which were characterized by XRD, SEM and particle size analyses. The results indicated that the rod-like precursor was treated at 950 degrees C for 6 h to afford good crystals of h-BN powder with a primary particle size of 15 mu m.