Dept of Chemistry and iNANO, Aarhus University, Denmark.
Chem Commun (Camb). 2013 Jan 28;49(8):789-91. doi: 10.1039/c2cc37415c.
Powder diffraction is used to study thermal expansion properties of MOF-5 at moderate helium gas pressures: 1.7 bar (100-500 K) and 5-150 bar (150-300 K). The framework shows negative thermal expansion (NTE) at all pressures, but vibrational motions causing NTE are damped with increasing pressures, leading to decreased NTE.
粉末衍射用于研究 MOF-5 在中等氦气压下的热膨胀性能:1.7 巴(100-500 K)和 5-150 巴(150-300 K)。该骨架在所有压力下均表现出负热膨胀(NTE),但导致 NTE 的振动运动随着压力的增加而减弱,从而导致 NTE 减小。