Single-Step Ethylene Purification and MTO Product Separation in a Nitrogen-Rich Microporous Metal–Organic Framework

The nitrogen-rich metal-organic framework (MOF) <b>NTUniv-75</b>, featuring a melamine (MA) functional group, enables efficient one-step C<sub>2</sub>H<sub>4</sub> purification and methanol-to-olefins (MTO) product separation. At 298 K, its adsorption capacity follows the order C<sub>2</sub>H<sub>2</sub> > C<sub>3</sub>H<sub>6</sub> > C<sub>2</sub>H<sub>6</sub> > C<sub>2</sub>H<sub>4</sub>. Breakthrough experiments showed that <b>NTUniv-75</b> produced pure C<sub>2</sub>H<sub>4</sub> from C<sub>2</sub> mixtures with a productivity of 22.5 mL g<sup>-1</sup>. For MTO products, productivities reached 43.0 mL g<sup>-1</sup> (C<sub>2</sub>H<sub>4</sub>) and 61.9 mL g<sup>-1</sup> (C<sub>3</sub>H<sub>6</sub>). Notably, C<sub>3</sub>H<sub>6</sub> addition nearly doubled the C<sub>2</sub>H<sub>4</sub> yield. Modeling revealed that MA aids C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub> separation, while pocket-like apertures favor C<sub>2</sub>H<sub>6</sub> adsorption. Additionally, C-H···π interactions between C<sub>2</sub>H<sub>6</sub> and C<sub>3</sub>H<sub>6</sub> enhance C<sub>2</sub>H<sub>4</sub> yield.

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Publication Details

Journal
Inorganic Chemistry
Published
2025-01-29
DOI
https://doi.org/10.1021/acs.inorgchem.4c05151
Citations
5
Primary Topic
Metal-Organic Frameworks: Synthesis and Applications
Type
article
Field-Weighted Citation Impact
2.69
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article

Single-Step Ethylene Purification and MTO Product Separation in a Nitrogen-Rich Microporous Metal–Organic Framework

Xinyu Ding, Xingge He, Mingxing Zhang, Yu Wang et al.
5 citations
Inorganic Chemistry
Metal-Organic Frameworks: Synthesis and Applications
2.69
article

Single-Step Ethylene Purification and MTO Product Separation in a Nitrogen-Rich Microporous Metal–Organic Framework

Xinyu Ding, Xingge He, Mingxing Zhang, Yu Wang, Yuxiang Liu, Ranran He, Meng Chen, Li-Wei Han, Junyang Jiang, Shangyu Wang, Suer Guo, Haitian Zhao, Wei Wang
article en
5 citations

Abstract

The nitrogen-rich metal-organic framework (MOF) <b>NTUniv-75</b>, featuring a melamine (MA) functional group, enables efficient one-step C<sub>2</sub>H<sub>4</sub> purification and methanol-to-olefins (MTO) product separation. At 298 K, its adsorption capacity follows the order C<sub>2</sub>H<sub>2</sub> > C<sub>3</sub>H<sub>6</sub> > C<sub>2</sub>H<sub>6</sub> > C<sub>2</sub>H<sub>4</sub>. Breakthrough experiments showed that <b>NTUniv-75</b> produced pure C<sub>2</sub>H<sub>4</sub> from C<sub>2</sub> mixtures with a productivity of 22.5 mL g<sup>-1</sup>. For MTO products, productivities reached 43.0 mL g<sup>-1</sup> (C<sub>2</sub>H<sub>4</sub>) and 61.9 mL g<sup>-1</sup> (C<sub>3</sub>H<sub>6</sub>). Notably, C<sub>3</sub>H<sub>6</sub> addition nearly doubled the C<sub>2</sub>H<sub>4</sub> yield. Modeling revealed that MA aids C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub> separation, while pocket-like apertures favor C<sub>2</sub>H<sub>6</sub> adsorption. Additionally, C-H···π interactions between C<sub>2</sub>H<sub>6</sub> and C<sub>3</sub>H<sub>6</sub> enhance C<sub>2</sub>H<sub>4</sub> yield.

Inorganic ChemistryVol. 64(5)
Nantong University (CN)
Openalex Percentile: Top 11%
Metal-Organic Frameworks: Synthesis and Applications
2.69
DOISourceOpenAlex
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