2023
DOI: 10.1039/d2sc06699h
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Fluorido-bridged robust metal–organic frameworks for efficient C2H2/CO2 separation under moist conditions

Abstract: A new nano MOF with high-coordinated bridged and terminal fluorine species exhibits efficient C2H2/CO2 separation under moist conditions.

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Cited by 11 publications
(3 citation statements)
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“…A novel Fe-MOF, DNF-9, showed fluorinated metal nodes packed in an alternating helical pattern based on HRTEM images. 163 At an ultra-low dose rate of 0.03 e Å −2 s −1 , the structure of the UiO-66-NH 2 derivative was determined. 164 The resulting highly crystalline structure with octahedral morphology clearly showed Zr 6 O 8 clusters with abundant defects caused by missing linkers as shown in Fig.…”
Section: Current Implementations In Comsmentioning
confidence: 99%
“…A novel Fe-MOF, DNF-9, showed fluorinated metal nodes packed in an alternating helical pattern based on HRTEM images. 163 At an ultra-low dose rate of 0.03 e Å −2 s −1 , the structure of the UiO-66-NH 2 derivative was determined. 164 The resulting highly crystalline structure with octahedral morphology clearly showed Zr 6 O 8 clusters with abundant defects caused by missing linkers as shown in Fig.…”
Section: Current Implementations In Comsmentioning
confidence: 99%
“…As the simplest triple-bonded unsaturated hydrocarbon, acetylene (C 2 H 2 ) is widely used as a fuel and is a major component of organic chemistry . It is also a raw material in the manufacture of various industrial products, such as plastics, rubber, and acetic acid. However, the efficiency of C 2 H 2 in these processes can be greatly affected by the presence of impurities, such as CO 2 . However, owing to their similar physical properties (boiling point of C 2 H 2 is 189.3 K and that of CO 2 is 194.7 K), as well as their similar sizes and shapes of molecules (3.3 × 3.3 × 5.7 Å 3 for C 2 H 2 and 3.2 × 3.3 × 5.4 Å 3 for CO 2 ), the C 2 H 2 /CO 2 separation is a difficult process. Currently, the most widely used techniques for removing C 2 H 2 from C 2 H 2 /CO 2 mixtures are partial hydrogenation and low-temperature distillation. However, these techniques are commonly costly and energy-intensive. It is significant to develop efficient adsorbents to separate C 2 H 2 from the mixed gas.…”
Section: Introductionmentioning
confidence: 99%
“…Metal–organic frameworks (MOFs), a type of periodic crystalline porous material, , with their high surface area and customizable pores, offer vast potential in various applications. The pillar-layered approach, which entails the vertical bridging of planar layers with auxiliary ligands to create predictable pillar-layered architectures, stands out as a pragmatic strategy within MOF synthesis. , In the realm of traditional pillar-layered MOFs, structures with pcu topology are notably prevalent; however, they are characterized by relatively inferior stability. , Conversely, MOFs with fsc topology are seldom encountered, , and to date, there have been no reports on the comparative stability between fsc and pcu topological pillar-layered MOFs. On the other hand, due to the high electron cloud density of the unsaturated bond, it is easy to form π–π interaction with C 2 H 2 and increase the adsorption capacity of C 2 H 2 . Compared to the method of enhancing the performance of pillared-layer MOFs by extending the pillars, there have been no reports on systematically modulating the performance of pillar-layered MOFs by introducing unsaturated bond groups into the pillars.…”
mentioning
confidence: 99%