Switching Adsorbent Layered Material that Enables Stepwise Capture of C8 Aromatics via Single-Crystal-to-Single-Crystal Transformations

Gao，Mei Yan1; Wang，Shi Qiang1,3; Bezrukov，Andrey A.1; Darwish，Shaza1; Song，Bai Qiao1; Deng，Chenghua1; Matos，Catiúcia R.M.O.1; Liu，Lunjie5; Tang，Boya2; Dai，Shan2; Yang，Sihai2,4; Zaworotko，Michael J.1

2023-12-12

10.1021/acs.chemmater.3c01920

Chemistry of Materials   影响因子和分区

0897-4756

1520-5002

Separation of the C aromatic isomers, xylenes (PX, MX, and OX) and ethylbenzene (EB), is important to the petrochemical industry. Whereas physisorptive separation is an energy-efficient alternative to current processes, such as distillation, physisorbents do not generally exhibit strong C selectivity. Herein, we report the mixed-linker square lattice (sql) coordination network [Zn(sba)(bis)]·mDMF (sql-4,5-Zn, Hsba or 4 = 4,4′-sulfonyldibenzoic acid, bis or 5 = trans-4,4′-bis(1-imidazolyl)stilbene) and its C sorption properties. sql-4,5-Zn was found to exhibit high uptake capacity for liquid C aromatics (∼20.2 wt %), and to the best of our knowledge, it is the first sorbent to exhibit selectivity for PX, EB, and MX over OX for binary, ternary, and quaternary mixtures from gas chromatography. Single-crystal structures of narrow-pore, intermediate-pore, and large-pore phases provided insight into the phase transformations, which were enabled by flexibility of the linker ligands and changes in the square grid geometry and interlayer distances. This work adds to the library of two-dimensional coordination networks that exhibit high uptake, thanks to clay-like expansion, and strong selectivity, thanks to shape-selective binding sites, for C isomers.

EI ; SCI

英语

其他

20235015219720

Aromatization ; Binary mixtures ; Binding sites ; Distillation ; Energy efficiency ; Isomers ; Single crystals

Energy Conservation:525.2 ; Biochemistry:801.2 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Crystalline Solids:933.1

MATERIALS SCIENCE

2-s2.0-85179618240

Scopus

1.Department of Chemical Sciences,Bernal Institute,University of Limerick,Limerick,V94 T9PX,Ireland
2.Department of Chemistry,University of Manchester,Manchester,M13 9PL,United Kingdom
3.Agency for Science,Technology and Research (A*STAR),Institute of Materials Research and Engineering (IMRE),2 Fusionopolis Way,138634,Singapore
4.College of Chemistry and Molecular Engineering,Beijing National Laboratory for Molecular Sciences,Peking University,Beijing,100871,China
5.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Gao，Mei Yan,Wang，Shi Qiang,Bezrukov，Andrey A.,et al. Switching Adsorbent Layered Material that Enables Stepwise Capture of C8 Aromatics via Single-Crystal-to-Single-Crystal Transformations[J]. Chemistry of Materials,2023,35(23):10001-10008.

Gao，Mei Yan.,Wang，Shi Qiang.,Bezrukov，Andrey A..,Darwish，Shaza.,Song，Bai Qiao.,...&Zaworotko，Michael J..(2023).Switching Adsorbent Layered Material that Enables Stepwise Capture of C8 Aromatics via Single-Crystal-to-Single-Crystal Transformations.Chemistry of Materials,35(23),10001-10008.

Gao，Mei Yan,et al."Switching Adsorbent Layered Material that Enables Stepwise Capture of C8 Aromatics via Single-Crystal-to-Single-Crystal Transformations".Chemistry of Materials 35.23(2023):10001-10008.