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Exceptional capture of methane at low pressure by an iron-based metal-organic framework.
Ma, Yujie; Li, Cheng; Guo, Lixia; Lu, Wanpeng; Cheng, Yongqiang; Han, Xue; Li, Jiangnan; Crawshaw, Danielle; He, Meng; Shan, Lutong; Lee, Daniel; da Silva, Ivan; Manuel, Pascal; Ramirez-Cuesta, Anibal J; Schröder, Martin; Yang, Sihai.
Afiliação
  • Ma Y; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Li C; Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Guo L; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Lu W; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Cheng Y; Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Han X; College of Chemistry, Beijing Normal University, Beijing, 100875, China.
  • Li J; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Crawshaw D; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • He M; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Shan L; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Lee D; Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK.
  • da Silva I; ISIS Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, OX11 0QX, UK.
  • Manuel P; ISIS Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, OX11 0QX, UK.
  • Ramirez-Cuesta AJ; Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Schröder M; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
  • Yang S; Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
Chemistry ; 30(20): e202303934, 2024 Apr 05.
Article em En | MEDLINE | ID: mdl-38102961
ABSTRACT
The selective capture of methane (CH4) at low concentrations and its separation from N2 are extremely challenging owing to the weak host-guest interactions between CH4 molecules and any sorbent material. Here, we report the exceptional adsorption of CH4 at low pressure and the efficient separation of CH4/N2 by MFM-300(Fe). MFM-300(Fe) shows a very high uptake for CH4 of 0.85 mmol g-1 at 1 mbar and 298 K and a record CH4/N2 selectivity of 45 for porous solids, representing a new benchmark for CH4 capture and CH4/N2 separation. The excellent separation of CH4/N2 by MFM-300(Fe) has been confirmed by dynamic breakthrough experiments. In situ neutron powder diffraction, and solid-state nuclear magnetic resonance and diffuse reflectance infrared Fourier transform spectroscopies, coupled with modelling, reveal a unique and strong binding of CH4 molecules involving Fe-OH⋯CH4 and C⋯phenyl ring interactions within the pores of MFM-300(Fe), thus promoting the exceptional adsorption of CH4 at low pressure.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Chemistry Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Chemistry Ano de publicação: 2024 Tipo de documento: Article