Solid‐State Investigation, Storage, and Separation of Pyrophoric PH 3 and P 2 H 4 with α‐Mg Formate
Solid‐State Investigation, Storage, and Separation of Pyrophoric PH 3 and P 2 H 4 with α‐Mg Formate
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使用α-甲酸镁对发火 PH 3 和 P 2 H 4 进行固态研究、储存和分离
DOI：
10.1002/anie.202217534
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Dincǎ, Mircea
中科院分区：
文献类型：
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作者：
Widera, Anna;Thöny, Debora;Aebli, Marcel;Oppenheim, Julius Jacob;Andrews, Justin L.;Eiler, Frederik;Wörle, Michael;Schönberg, Hartmut;Weferling, Norbert;Dincǎ, Mircea
磷化氢，PH 3-一种高度自燃和有毒的气体-经常被H2和P2 H4污染，这使得其处理更加危险。廉价的金属有机框架（MOF）甲酸镁，α-[Mg（O2 CH）2]，可以吸附高达10重量%的PH 3。 负载PH 3的MOF，PH3@α-[Mg（O2 CH）2]，是一种非自燃的可回收材料，甚至允许在空气中进行短暂处理，从而最大限度地减少与磷烷处理和运输相关的危险。α-[Mg（O2 CH）2]在从H2和P2 H4中纯化PH 3中进一步发挥关键作用：在25 °C下，H2通过MOF通道而没有吸附，而PH 3容易吸附，并且在惰性气体流下仅缓慢解吸（完全解吸时间约6 h）。 二磷烷，P2 H4，被强烈吸附和捕获在MOF内至少4个月。 P2H4@α-[Mg（O2 CH）2]本身不自燃，在室温下对空气和光稳定。
Phosphane, PH3—a highly pyrophoric and toxic gas—is frequently contaminated with H2and P2H4, which makes its handling even more dangerous. The inexpensive metal–organic framework (MOF) magnesium formate, α‐[Mg(O2CH)2], can adsorb up to 10 wt % of PH3. The PH3‐loaded MOF, PH3@α‐[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. α‐[Mg(O2CH)2] further plays a critical role in purifying PH3from H2and P2H4: at 25 °C, H2passes through the MOF channels without adsorption, whereas PH3adsorbs readily and only slowly desorbs under a flow of inert gas (complete desorption time≈6 h). Diphosphane, P2H4, is strongly adsorbed and trapped within the MOF for at least 4 months. P2H4@α‐[Mg(O2CH)2] itself is not pyrophoric and is air‐ and light‐stable at room temperature.