Enthalpy-Entropy Correlation for Hydrogen Adsorption on MOFs: Variable- Temperature FTIR Study of Hydrogen Adsorption on MIL-100(Cr) and MIL- 101(Cr)
Enthalpy-Entropy Correlation for Hydrogen Adsorption on MOFs: Variable- Temperature FTIR Study of Hydrogen Adsorption on MIL-100(Cr) and MIL- 101(Cr)
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DOI：
10.1002/ejic.201001116
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发表时间：
2011-04
影响因子：
2.3
通讯作者：
G. Palomino;C. P. Cabello;C. Areán
中科院分区：
文献类型：
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作者：
G. Palomino;C. P. Cabello;C. Areán
用变温红外光谱(VTIR)研究了金属有机骨架MIL-100(Cr)和MIL-101(Cr)中配位不饱和CrIII阳离子与氢相互作用的热力学。在79-105K温度范围内，同时测量氢的平衡压强和红外积分吸光度，得到相应的标准吸附热(ΔH0)和标准吸附熵(ΔS 0)。对于MIL-100(铬)，这些值为ΔH 0=
The thermodynamics of hydrogen interaction with the coordinatively unsaturated Cr III cationic sites in the metal–organic frameworks MIL-100(Cr) and MIL-101(Cr) was studied by variable-temperature infrared (VTIR) spectroscopy. Simultaneous measurement of the equilibrium pressure of hydrogen and the integrated IR absorbance over the temperature range 79–105 K led to the determination of the corresponding values of standard adsorption enthalpy (ΔH 0 )a nd entropy (ΔS 0 ). For MIL-100(Cr) these values were ΔH 0 =