• 文献标题:   Highly Dispersible and Stable Anionic Boron Cluster-Graphene Oxide Nanohybrids
  • 文献类型:   Article
  • 作  者:   CABRERAGONZALEZ J, CABANA L, BALLESTEROS B, TOBIAS G, NUNEZ R
  • 作者关键词:   boron cluster, dispersibility, electron microscopy, graphene oxide
  • 出版物名称:   CHEMISTRYA EUROPEAN JOURNAL
  • ISSN:   0947-6539 EI 1521-3765
  • 通讯作者地址:   CSIC
  • 被引频次:   8
  • DOI:   10.1002/chem.201505044
  • 出版年:   2016

▎ 摘  要

An efficient process to produce boron cluster-graphene oxide nanohybrids that are highly dispersible in water and organic solvents is established for the first time. Dispersions of these nanohybrid materials in water were extraordinarily stable after one month. Characterization of hybrids after grafting of appropriate cobaltabisdicarbollide and closo-dodecaborate derivatives onto the surface of graphene oxide (GO) was done by FT-IR, XPS, and UV/Vis. Thermogravimetric analysis (TGA) clearly shows a higher thermal stability for the modified-GO nanohybrids compared to the parent GO. Of particular note, elemental mapping by energy-filtered transmission electron microscopy (EFTEM) reveals that a uniform decoration of the graphene oxide surface with the boron clusters is achieved under the reported conditions. Therefore, the resulting nanohybrid systems show exceptional physico-chemical and thermal properties, paving the way for an enhanced processability and further expanding the range of application for graphene-based materials.