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    Large-scale fabrication and utilization of novel hexagonal/turbostratic composite boron nitride nanosheets

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    Type
    Article
    Authors
    Zhong, Bo
    Zhang, Xiaodong
    Xia, Long
    Yu, Yuanlie cc
    Wen, Guangwu
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Date
    2017-02-15
    Online Publication Date
    2017-02-15
    Print Publication Date
    2017-04
    Permanent link to this record
    http://hdl.handle.net/10754/622921
    
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    Abstract
    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 BV
    Journal
    Materials & Design
    DOI
    10.1016/j.matdes.2017.02.035
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0264127517301636
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.matdes.2017.02.035
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center

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