J. Mater. Sci. Technol. ›› 2022, Vol. 96: 160-166.DOI: 10.1016/j.jmst.2021.03.084

• Letter • Previous Articles     Next Articles

Temperature-mediated supramolecular assemblies give rise to hierarchical boron nitride nano-ribbon networks with different micro-topology

Jingjing Pana,b, Jingyang Wanga,*()   

  1. aShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
    bSchool of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • Revised:2021-03-29 Published:2022-01-10 Online:2022-01-05
  • Contact: Jingyang Wang
  • About author:*E-mail address: jywang@imr.ac.cn (J. Wang)

Abstract:

Boron Nitride (BN) nanostructures have triggered extensive interest in various applications, be it field emitters, catalysts, adsorbents and bio-imaging, etc. It is essential but challenging to fabricate delicate BN structures of appreciable variability via exquisite yet scalable ways. We report herein the design of hierarchical BN nanobelt networks via a temperature-mediated assembly strategy. The precursor supramolecular architectures assembled from melamine and boric acid, which underwent different cooling procedures during their formation process, could be converted to hierarchical BN nanoribbons with varied width. Interestingly, the stacking of tiny crystals in BN nanobelts varies from a clearly demarcated pattern to an ambiguous state. Such tailorable micro-topology may offer opportunities for the unveiling of unique phenomena stemming from special inner organizations. This work allows the scalable production and the resultant hierarchical BN nanoribbon networks could exist in different states - powder, film and 3D aerogel forms, which facilitate their fitting into various scenarios.

Key words: Boron nitride, Nanostructures, Assembly, Microstructure-tailoring