High capacity ammonia adsorption in a robust metal-organic framework mediated by reversible host-guest interactions.

High capacity ammonia adsorption in a robust metal-organic framework mediated by reversible host-guest interactions.
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DOI:
10.1039/d2cc01197b
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发表时间:
2022-05-10
影响因子:
4.9
通讯作者:
Yang, Sihai
Yang, Sihai
中科院分区:
化学2区
文献类型:
--
作者:
Guo, Lixia;Han, Xue;Ma, Yujie;Li, Jiangnan;Lu, Wanpeng;Li, Weiyao;Lee, Daniel;da Silva, Ivan;Cheng, Yongqiang;Rudic, Svemir;Manuel, Pascal;Frogley, Mark D.;Ramirez-Cuesta, Anibal J.;Schroder, Martin;Yang, Sihai

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To understand the exceptional adsorption of ammonia (NH3) in MFM-300(Sc) (19.5 mmol g−1 at 273 K and 1 bar without hysteresis), we report a systematic investigation of the mechanism of adsorption by a combination of in situ neutron powder diffraction, inelastic neutron scattering, synchrotron infrared microspectroscopy, and solid-state 45Sc NMR spectroscopy. These complementary techniques reveal the formation of reversible host–guest supramolecular interactions, which explains directly the observed excellent reversibility of this material over 90 adsorption–desorption cycles. To understand the exceptional adsorption of NH3 in MFM-300(Sc), we report a full study of the mechanism of adsorption by in situ neutron diffraction, inelastic neutron scattering, synchrotron infrared microspectroscopy, and 45Sc NMR spectroscopy.
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