Functionalized Boron Nitride Nanosheets: A Thermally Rearranged Polymer Nanocomposite Membrane for Hydrogen Separation
Yuqi Wang, Ze-Xian Low, Seungju Kim, Huacheng Zhang, Xiaofang Chen, Jue Hou, Jong Geun Seong, Young Moo Lee, George P Simon, Chris HJ Davies, Huanting Wang
Angewandte Chemie International Edition | WILEY-V C H VERLAG GMBH | Published : 2018
Amino functionalized boron nitride nanosheets (FBN) were incorporated into a crosslinked, thermally rearranged polyimide (XTR) to fabricate FBN-XTR nanocomposite membrane. The FBN-XTR membrane exhibited a small decrease in H2 permeability but demonstrated a remarkably increased H2 gas selectivity over other gases, compared with XTR. The XTR membrane heat-treated at 425 °C had a H2 permeability of 210 Barrers and a H2 /CH4 separation factor of 24.1, whereas the nanocomposite membrane with 1 wt % FBN exhibited a H2 permeability of 110 Barrers and H2 /CH4 separation factor of 275, an order of magnitude greater. At 1 wt % FBN loading, the FBN-XTR membrane showed three times higher tensile streng..View full abstract
Awarded by Australian Research Council
This work was supported by the Australian Research Council (Discovery Project no. DP170102964). The authors thank the staff of Monash Centre for Electron Microscopy at Monash University for their technical assistance with SEM and TEM and Meipeng Jiang for the assistance of AFM characterization.