TY - JOUR
T1 - Ultrastable Mesoporous Hydrogen-Bonded Organic Framework-Based Fiber Composites toward Mustard Gas Detoxification
AU - Ma, Kaikai
AU - Li, Peng
AU - Xin, John H.
AU - Chen, Yongwei
AU - Chen, Zhijie
AU - Goswami, Subhadip
AU - Liu, Xiaofeng
AU - Kato, Satoshi
AU - Chen, Haoyuan
AU - Zhang, Xuan
AU - Bai, Jiaquan
AU - Wasson, Megan C.
AU - Maldonado, Rodrigo R.
AU - Snurr, Randall Q.
AU - Farha, Omar K.
N1 - Funding Information:
O.K.F. gratefully acknowledges DTRA for financial support ( HDTRA1-19-1-0010 ) and Northwestern University for their continued support of this research. P L. would like to thank the start-up funding from Fudan University . R.Q.S. thanks DTRA for financial support under HDTRA1-18-1-0003 .
Funding Information:
O.K.F. gratefully acknowledges DTRA for financial support (HDTRA1-19-1-0010) and Northwestern University for their continued support of this research. P L. would like to thank the start-up funding from Fudan University. R.Q.S. thanks DTRA for financial support under HDTRA1-18-1-0003. O.K.F. and P.L. planned and directed the project. K.M. Y.C. and R.R.M. synthesized the HOFs and collected and analyzed the gas adsorption, X-ray diffraction, SEM, and stability tests under the supervision of O.K.F and P.L.; K.M. prepared the HOF/fiber composite under the guidance of J.H.X.; J.B. and X.L. prepared the tectons of HOFs under the supervision of P.L.; S.G. measured the photocatalysis of HOF/fiber composite; Z.C. obtained the H2O and NH3 isotherms; X.Z. performed phase analysis and Pawley refinement on the simulated HOF structures. H.C. calculated the ?-? interaction energies under the supervision of R.S.; S.K. measured the ITC experiments; K.M. M.C.W. and P.L. wrote the initial paper draft, and all authors contributed to revising the paper. The authors declare no competing interests.
Publisher Copyright:
© 2020
PY - 2020/2/26
Y1 - 2020/2/26
N2 - Creating crystalline porous materials with large pores is typically challenging due to undesired interpenetration, staggered stacking, or weakened framework stability. Here, we report a pore size expansion strategy by “shape-matching” intermolecular π-π stacking interactions in a series of two-dimensional (2D) hydrogen-bonded organic frameworks (HOFs), HOF-10x (x = 0,1,2), self-assembled from pyrene-based tectons with systematic elongation of π-conjugated molecular arms. This strategy successfully avoids interpenetration or staggered stacking and expands the pore size of HOF materials to access mesoporous HOF-102, which features a surface area of ∼2,500 m2/g and the largest pore volume (1.3 cm3/g) to date among all reported HOFs. More importantly, HOF-102 shows significantly enhanced thermal and chemical stability as evidenced by powder X-ray diffraction and N2 isotherms after treatments in challenging conditions. Such stability enables the easy fabrication of a HOF-102/fiber composite for the efficient photochemical detoxification of a mustard gas simulant.
AB - Creating crystalline porous materials with large pores is typically challenging due to undesired interpenetration, staggered stacking, or weakened framework stability. Here, we report a pore size expansion strategy by “shape-matching” intermolecular π-π stacking interactions in a series of two-dimensional (2D) hydrogen-bonded organic frameworks (HOFs), HOF-10x (x = 0,1,2), self-assembled from pyrene-based tectons with systematic elongation of π-conjugated molecular arms. This strategy successfully avoids interpenetration or staggered stacking and expands the pore size of HOF materials to access mesoporous HOF-102, which features a surface area of ∼2,500 m2/g and the largest pore volume (1.3 cm3/g) to date among all reported HOFs. More importantly, HOF-102 shows significantly enhanced thermal and chemical stability as evidenced by powder X-ray diffraction and N2 isotherms after treatments in challenging conditions. Such stability enables the easy fabrication of a HOF-102/fiber composite for the efficient photochemical detoxification of a mustard gas simulant.
UR - https://www.scopus.com/pages/publications/85094640155
U2 - 10.1016/j.xcrp.2020.100024
DO - 10.1016/j.xcrp.2020.100024
M3 - Journal article
AN - SCOPUS:85094640155
SN - 2666-3864
VL - 1
JO - Cell Reports Physical Science
JF - Cell Reports Physical Science
IS - 2
M1 - 100024
ER -