TY - JOUR
T1 - Multistep Transformation from Amorphous and Nonporous Fullerenols to Highly Crystalline Microporous Materials.
AU - Hardian, Rifan
AU - Szekely, Gyorgy
N1 - KAUST Repository Item: Exported on 2022-11-17
Acknowledgements: The research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST). Figure 1a and the Table of Content graphic were created by Ana Bigio, scientific illustrator at KAUST
PY - 2022/11/15
Y1 - 2022/11/15
N2 - The structural and morphological properties of fullerenols upon exposure to heat treatment have yet to be understood. Herein, we investigated the temperature-driven structural and morphological evolutions of fullerenols C60(OH) and C70(OH). In situ spectroscopic techniques, such as variable-temperature X-ray diffraction (VTXRD) and coupled thermogravimetric Fourier-transform infrared (TG-FTIR) analysis, were used to elucidate the structural transformation mechanism of fullerenols. Both fullerenols underwent four-step structural transformation upon heating and cooling, including amorphous-to-crystalline transition, thermal expansion, structural compression, and new crystal formation. Compared to the initially nonporous amorphous fullerenol, the crystalline product exhibited microporosity with a surface area of 114 m2 g-1 and demonstrated CO2 sorption capability. These findings show the potential of fullerene derivatives as adsorbents.
AB - The structural and morphological properties of fullerenols upon exposure to heat treatment have yet to be understood. Herein, we investigated the temperature-driven structural and morphological evolutions of fullerenols C60(OH) and C70(OH). In situ spectroscopic techniques, such as variable-temperature X-ray diffraction (VTXRD) and coupled thermogravimetric Fourier-transform infrared (TG-FTIR) analysis, were used to elucidate the structural transformation mechanism of fullerenols. Both fullerenols underwent four-step structural transformation upon heating and cooling, including amorphous-to-crystalline transition, thermal expansion, structural compression, and new crystal formation. Compared to the initially nonporous amorphous fullerenol, the crystalline product exhibited microporosity with a surface area of 114 m2 g-1 and demonstrated CO2 sorption capability. These findings show the potential of fullerene derivatives as adsorbents.
UR - http://hdl.handle.net/10754/685771
UR - https://onlinelibrary.wiley.com/doi/10.1002/cssc.202202008
U2 - 10.1002/cssc.202202008
DO - 10.1002/cssc.202202008
M3 - Article
C2 - 36377928
SN - 1864-5631
JO - ChemSusChem
JF - ChemSusChem
ER -