New insights into the breathing phenomenon in ZIF-4
2019 ◽
Vol 7
(24)
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pp. 14552-14558
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Keyword(s):
X Ray
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The pufferfish effect in ZIF-4: synchrotron X-ray powder diffraction studies under operando conditions confirm that ZIF-4 experiences a breathing phenomenon above ∼30 kPa associated with a large expansion in the unit cell volume (∼8–9%). The presence of an expanded-pore (N2) ZIF-4 structure is predicted by molecular simulations.