Solid-State Investigation, Storage, and Separation of Pyrophoric PH3 and P2H4 with α-Mg Formate

被引：8
|
作者：
Widera, Anna [1 ]
Thoeny, Debora [1 ]
Aebli, Marcel [1 ]
Oppenheim, Julius Jacob [2 ]
Andrews, Justin L. [2 ]
Eiler, Frederik [1 ]
Woerle, Michael [1 ]
Schoenberg, Hartmut [1 ]
Weferling, Norbert [3 ]
Dinca, Mircea [2 ]
Gruetzmacher, Hansjoerg [1 ]
机构：
[1] Swiss Fed Inst Technol, Dept Chem & Appl Biosci, Vladimir Prelog Weg 1-5-10, CH-8093 Zurich, Switzerland
[2] MIT, Dept Chem, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[3] WefConsult GmbH, Knapsackstr 39, D-50354 Huerth, Germany
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 13期
基金：
美国国家科学基金会;
关键词：
Gas Purification; Gas Storage; MOF Chemistry; Phosphane; Single Crystal Analysis; DECOMPOSITION PRODUCTS; CRYSTAL-STRUCTURE; PHOSPHINE; PRESSURE; PHOSPHORUS; ADSORPTION;
D O I：
10.1002/anie.202217534
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Phosphane, PH3-a highly pyrophoric and toxic gas-is frequently contaminated with H-2 and P2H4, which makes its handling even more dangerous. The inexpensive metal-organic framework (MOF) magnesium formate, alpha-[Mg(O2CH)(2)], can adsorb up to 10 wt % of PH3. The PH3-loaded MOF, PH3@alpha-[Mg(O2CH)(2)], is a non-pyrophoric, recoverable material that even allows brief handling in air, thereby minimizing the hazards associated with the handling and transport of phosphane. alpha-[Mg(O2CH)(2)] further plays a critical role in purifying PH3 from H-2 and P2H4: at 25 degrees C, H-2 passes through the MOF channels without adsorption, whereas PH3 adsorbs readily and only slowly desorbs under a flow of inert gas (complete desorption time approximate to 6 h). Diphosphane, P2H4, is strongly adsorbed and trapped within the MOF for at least 4 months. P2H4@alpha-[Mg(O2CH)(2)] itself is not pyrophoric and is air- and light-stable at room temperature.
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页数：5
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