文档介绍：
Preparation of carbon coated AlN hollow nanospheres with
anti-hydrolysis property#
Zhu Guoyin, He Zhi, Ma Yanwen**
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(Key Laboratory anic Electronics & Information Displays (KLOEID) and Institute of
Advanced Materials (IAM), School of Materials Science and Engineering, Nanjing University of
Posts & munications (NUPT), NanJing 210023)
Abstract: Carbon coated AlN hollow nanospheres (AlN/C) were synthesized by a subsequent chemical
vapor deposition of CH4 following the nitridation of Al nanoparticles. The structure position of
the products were characterized by transmission electron microscopy, X-ray diffraction and Raman
spectroscopy. The uncoated AlN hollow nanospheres underwent an easy hydrolysis reaction and their
hollow structure was collapsed and changed to villiform morphology, panying by the
transformation of AlN to AlOOH. AlN/C with carbon shell of 1~4 nm in thickness had high stability
toward hydrolysis even in the ultrasonic and heating treatment. These results indicate that carbon
coating is an efficient and convenient route for the protection of AlN nanostructures against hydrolysis.
Keywords: anic nonmetallic materials; AlN; hollow nanospheres; carbon coating; anti-hydrolysis
0 Introduction
Aluminum nitride (AlN) has been widely used in electronic substrate or packing, structural
and refractory materials due to its hi