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.

引用

页数：5

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