Large-scale fabrication and utilization of novel hexagonal/turbostratic composite boron nitride nanosheets
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ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterDate
2017-02-15Online Publication Date
2017-02-15Print Publication Date
2017-04Permanent link to this record
http://hdl.handle.net/10754/622921
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In this report, we have developed a scalable approach to massive synthesis of hexagonal/turbostratic composite boron nitride nanosheets (h/t-BNNSs). The strikingly effective, reliable, and high-throughput (grams) synthesis is performed via a facile chemical foaming process at 1400°C utilizing ammonia borane (AB) as precursor. The characterization results demonstrate that high quality of h/t-BNNSs with lateral size of tens of micrometers and thickness of tens of nanometers are obtained. The growth mechanism of h/t-BNNSs is also discussed based on the thermogravimetric analysis of AB which clearly shows two step weight loss. The h/t-BNNSs are further used for making thermoconductive h/t-BNNSs/epoxy resin composites. The thermal conductivity of the composites is obviously improved due to the introduction of h/t-BNNSs. Consideration of the unique properties of boron nitride, these novel h/t-BNNSs are envisaged to be very valuable for future high performance polymer based material fabrication.Citation
Zhong B, Zhang X, Xia L, Yu Y, Wen G (2017) Large-scale fabrication and utilization of novel hexagonal/turbostratic composite boron nitride nanosheets. Materials & Design. Available: http://dx.doi.org/10.1016/j.matdes.2017.02.035.Sponsors
This work was supported by the National Natural Science Foundation of China (51172050, 51102060, 51102063, 51202045 and 51672059), the Postdoctoral Science Foundation of China (2013M531036), Shandong Province Young and Middle-Aged Scientists Research Awards Fund (BS2013CL003), the Fundamental Research Funds for the Central Universities (HIT. ICRST.2010009), the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology (HIT.NSRIF.2011109, HIT.NSRIF.2010121), and the Scientific Research Foundation of Harbin Institute of Technology at Weihai (HIT(WH)X201108). The authors acknowledge Mr. Baoyou Zhang and Dr. Guohua Fan for their technical assistance with FESEM and HRTEM observations, respectively.Publisher
Elsevier BVJournal
Materials & DesignAdditional Links
http://www.sciencedirect.com/science/article/pii/S0264127517301636ae974a485f413a2113503eed53cd6c53
10.1016/j.matdes.2017.02.035