Unprecedented
Radiation Resistant Thorium–Binaphthol
Metal–Organic Framework
Posted on 2020-07-22 - 22:13
A thorium–organic framework
(TOF-16) containing
hexameric secondary building units connected by functionalized binaphthol
linkers was synthesized, characterized, and irradiated to probe its
radiation resistance. Radiation stability was examined using γ-rays
and 5 MeV He2+ ions to simulate α particles. γ-irradiation
of TOF-16 to an unprecedented 4 MGy dose resulted in
no apparent bulk structural damage visible by X-ray diffraction. To
further probe radiation stability, we conducted the first He2+ ion irradiation study of a metal–organic framework (MOF).
Diffraction data indicate onset of crystallinity loss upon approximately
15 MGy of irradiation and total loss of crystallinity upon exposure
to approximately 25 MGy of He2+ ion irradiation. The high
radiation resistance observed suggests MOFs can withstand radiation
exposure at doses found in nuclear waste streams and highlights the
need for a systematic approach to understand and eventually design
frameworks with exceptional radiation resistance.
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Gilson, Sara E.; Fairley, Melissa; Julien, Patrick; Oliver, Allen G.; Hanna, Sylvia L.; Arntz, Grace; et al. (2020). Unprecedented
Radiation Resistant Thorium–Binaphthol
Metal–Organic Framework. ACS Publications. Collection. https://doi.org/10.1021/jacs.0c05272
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AUTHORS (9)
SG
Sara E. Gilson
MF
Melissa Fairley
PJ
Patrick Julien
AO
Allen G. Oliver
SH
Sylvia L. Hanna
GA
Grace Arntz
OF
Omar K. Farha
JL
Jay A. LaVerne
PB
Peter C. Burns