Efficient MOF-Catalyzed Ortho–Para Hydrogen Conversion for Practical Liquefaction and Energy Storage,ACS Energy Letters

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Efficient MOF-Catalyzed Ortho–Para Hydrogen Conversion for Practical Liquefaction and Energy Storage
ACS Energy Letters ( IF 19.3 ) Pub Date : 2022-11-08 , DOI: 10.1021/acsenergylett.2c02149
Daniil M. Polyukhov ₁ , Nikita A. Kudriavykh ₁ , Sergey A. Gromilov ₂ , Alexey S. Kiryutin ₁ , Artem S. Poryvaev ₁ , Matvey V. Fedin _{1,

3}

Affiliation

Parahydrogen, being one of two nuclear spin isomers of molecular hydrogen, is required in a number of applications, including hydrogen liquefaction for energy storage and transportation. Obtaining pure parahydrogen is vital for these tasks, thus requiring approaches for efficient ortho–para (OP) hydrogen conversion. In this work, we for the first time demonstrate the extraordinary potential of metal–organic frameworks (MOF) as OP-conversion catalysts. In particular, the specific conversion rate constant of Ni-MOF-74 is found 145-fold higher than that of industrially used catalysts (e.g., hydrous ferric oxide), thus opening new horizons in hydrogen liquefaction and storage and, ultimately, in the broad use of hydrogen energy.

中文翻译：

用于实际液化和储能的高效 MOF 催化邻-仲氢转化

仲氢是分子氢的两种核自旋异构体之一，在许多应用中都是必需的，包括用于储能和运输的氢液化。获得纯仲氢对于这些任务至关重要，因此需要有效的邻-仲(OP) 氢转化方法。在这项工作中，我们首次展示了金属有机框架 (MOF) 作为 OP 转化催化剂的非凡潜力。特别是，发现 Ni-MOF-74 的特定转化率常数比工业使用的催化剂（例如，水合氧化铁）高 145 倍，从而开辟了氢液化和储存的新视野，并最终在广泛的氢能的利用。

更新日期：2022-11-08

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