State Key Lab of Crystal Materials, School of Physics, Shandong University, Jinan, 250100 (China); Department of Chemistry, Qilu Normal University, Jinan, 250200 (China).
Angew Chem Int Ed Engl. 2014 Apr 1;53(14):3645-9. doi: 10.1002/anie.201308294. Epub 2014 Mar 3.
A novel, simple, and efficient method for the preparation of the fluorinated hexagonal boron nitride nanosheets (F-BNNSs) and the corresponding magnetic properties is presented. A one-step route is used to exfoliate and fluorinate the BNNSs by ammonium fluoride (NH4F) from hexagonal boron nitride (h-BN) powder. Through related instrument characterizations and theoretical calculations, we confirm that large-area and few-layer F-BNNSs were successfully produced by this method, which can be attributed to a fluorination-assisted exfoliation mechanism from the bulk h-BN in NH4F. More intriguingly, we initially verified that the as-prepared F-BNNSs exhibit ferromagnetic characteristics, which would have good potential applications in spintronic devices.
本文提出了一种新颖、简单、高效的制备氟化六方氮化硼纳米片（F-BNNSs）的方法，并研究了其相应的磁性。该方法通过一步反应，由六方氮化硼（h-BN）粉末与氟化铵（NH4F）反应，实现了 BNNSs 的剥离和氟化。通过相关仪器表征和理论计算，我们证实了这种方法可以成功制备大面积、少层的 F-BNNSs，这归因于在 NH4F 中通过氟化辅助剥离机制从大块 h-BN 中得到的。更有趣的是，我们初步验证了所制备的 F-BNNSs 具有铁磁性，这将使其在自旋电子器件中有很好的应用前景。
