Enhancing the separation efficiency of a C2H2/C2H4 mixture by a chromium metal–organic framework fabricated via post-synthetic metalation

Yu, Fan; Hu, Bingqian; Wang, Xiaoning; Zhao, Yumeng; Li, Jia-Luo; Li, Bao; Zhou, Hong‐Cai

doi:10.1039/c9ta06913e

Cited by 47 publications

(28 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Few years back, Li and co‐workers have explored the haxacarboxylate ligand 188 (Figure 9) based on CTP designed to generate the various dimensional coordination polymers 195 – 200 with variety of metal salts (Figure 10, 11). [30,32,34,132,133] …”

Section: Cyclotriphosphazene Based Porous Coordination Polymersmentioning

confidence: 99%

“…Copy right 2019, American Chemical Society. 200 ‐Reproduced with permission from Ref [30] . Copy right 2020, Royal Society of Chemistry.…”

Section: Cyclotriphosphazene Based Porous Coordination Polymersmentioning

confidence: 99%

“…The compound 199 reveals the multiple interactions sites which tend to be utilized for the solvochromic sensing application of small ketones such as acetone and acetophenone [32] . More recently, a novel Fe‐coordination polymer 200 has been constructed with the intention of preparing the stable Cr‐coordination polymer via post synthetic metallation for enhancing the separation efficiency of C 2 H 2 /C 2 H 4 mixture [30] . The compound 200 reveals a novel 3D coordination polymer contains 4,5‐c topological structure.…”

Section: Cyclotriphosphazene Based Porous Coordination Polymersmentioning

confidence: 99%

“…The variation of substituents on phosphorous centres tends to tune the electronic properties of the entire molecule, which leads to the versatile coordination properties towards subsequent applications [11–17] . Indeed, CTP based metal clusters and coordination polymers are used in numerous applications such as catalyst, [18–23] antibacterial agents, [24,25] gas adsorption, [26–28] gas separation [29,30] and sensors [31–33] etc. In particular, the synthetic strategies executed with the simple molecule of N 3 P 3 Cl 6 can act as models for the extension of similar synthesis on the polymeric analogues, polyphosphazene [−N=P(Cl 2 )−] n .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Multisite Coordination Ligands on Cyclotriphosphazene Core for the Assembly of Metal Clusters and Porous Coordination Polymers

et al. 2021

View full text Add to dashboard Cite

In this review, we account the recent advancements on cyclotriphosphazene (N3P3Cl6) based multi‐site coordination ligands for the synthesis of multi‐metallic architectures. In case of N3P3Cl6, Phosphorous centres with two chlorides use to be bonded with nitrogen [−P(Cl2)=N−]3 at alternative positions in six membered ring to provide a robust planar structure to anchor the ligand arms with wide flexibility. Cyclic P−N robust motif is renowned as the potential support for the design of multi‐site ligands originating from phosphorus centres by viable substitution of variable number of ligand units (1 to 6) consist of one or more coordination site(s) via geminal and/or non‐geminal modes. Despite these phosphorus centres are promising to support in ligand structure, occasionally involve in coordination with transition metals as well. Three of alternative nitrogen atoms in this heterocyclic core are supposed to function as Lewis base centres while the electron releasing substituents occurred to tether on phosphorus centres, also when the resultant ring size favours adequate interaction towards the transition metal ions with respect to skeletal flexibility. The ligand modes vary with respect to numbers and orientation of coordination sites, which is imperative to enrich the ligation ability. Moreover, several examples of cyclotriphosphazene core ligands consist of the spacer oxygen atom while tethering with exocyclic ligand units to incorporate more flexibility. In accordance with coordination sites on ligand framework and choice of metal, the skeletal ring nitrogen atom(s) of the cyclotriphosphazene can be involved in coordination with metal ions. Indeed, the coordination of ligands is reported to coordinate with main group, transition and lanthanide metal ions to form variety of metal clusters and porous coordination polymers. Subsequently, the geometry of homo or heterometallic complexes with respect to versatile coordination modes of metallic complexes tends to afford inherent chemical properties for specific application. In terms of exocyclic ligands, the heterocyclic units such as pyridyloxy‐, pyrazolyl‐, pyridylalkylamino‐, bipyridyl‐, 1,10‐phenanthroline, porphyrinato, hydrazide, hydrazone, Schiff's base and spirocyclic amine units attached to cyclotriphosphazene were exploited to form series of metal complexes. Similarly, the variety of metal clusters, polymeric network (1D to 3D) and porous coordination polymers have been reported on basis of cyclic core molecule substituted with ligand units, pyridyloxy‐, multi‐carboxylic, aromatic amines substituted pyridyloxy‐ and imidazole moiety involved to form variety of products.

show abstract

Section: Cyclotriphosphazene Based Porous Coordination Polymersmentioning

confidence: 99%

“…Copy right 2019, American Chemical Society. 200 ‐Reproduced with permission from Ref [30] . Copy right 2020, Royal Society of Chemistry.…”

Section: Cyclotriphosphazene Based Porous Coordination Polymersmentioning

confidence: 99%

Section: Cyclotriphosphazene Based Porous Coordination Polymersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multisite Coordination Ligands on Cyclotriphosphazene Core for the Assembly of Metal Clusters and Porous Coordination Polymers

et al. 2021

View full text Add to dashboard Cite

show abstract

“…As a class of important porous materials, metal–organic frameworks (MOFs) have outstanding characteristics including extra-high surface areas, diverse functionalities, linkers tailorability, acid and base robustness and tunable aperture 17 , 18 . Thus, they have great potentials in diverse domains such as gas storage and separation 19 , sensing 20 , adsorption 21 – 23 , biomedicine 24 , magnetism 25 , luminescence 26 , environmental remediation 27 – 29 , and catalysis 30 , 31 . MOFs@cellulose composites have been proven to provide better benefits for their versatile applications than pure cellulose or MOFs 32 .…”

mentioning

confidence: 99%

Facile preparation and adsorption performance of low-cost MOF@cotton fibre composite for uranium removal

Yang

Wang

Zhu

2020

Sci Rep

View full text Add to dashboard Cite

A novel composite MOF@cotton fibre (HCF) was prepared and characterized by FTIR, SEM, XPS and TGA. The effect of various parameters on the adsorption efficiency, such as the solution pH, contact time, initial U(VI) concentration and temperature, was studied. The maximal sorption capacity (Qm) is 241.28 mg g−1 at pH 3.0 for U(VI) according to the Langmuir isotherm adsorption model, and the kinetic and thermodynamic data reveal a relatively fast entropy-driven process (ΔH0 = 13.47 kJ mol−1 and ΔS0 = 75.47 J K−1 mol−1). The removal efficiency of U(VI) by HCF is comparable with that of pure cotton fibre and as-prepared MOF (noted as HST). However, the HST composite with cotton fibre significantly improved the treatment process of U(VI) from aqueous solutions in view of higher removal efficiency, lower cost and faster solid–liquid separation. Recycling experiments showed that HCF can be used up to five times with less than 10% efficiency loss.

show abstract

Zeolitic Octahedral Metal Oxides with Ultra‐Small Micropores for C₂ Hydrocarbon Separation

et al. 2021

View full text Add to dashboard Cite

Separation of C2 hydrocarbons, C2H6, C2H4, and C2H2, remains significant challenges in chemical industry. However, there are only few adsorbents that can effectively isolate C2 hydrocarbons from their mixtures particularly at a high temperature. Herein, we design a zeolitic octahedral metal oxide based on ϵ‐Keggin polyoxometalates with metal ion linkers. Single gas adsorption of the material shows the different adsorption performances for the C2 hydrocarbons and the strong interaction of the material with the C2 hydrocarbons. Dynamic competitive adsorption experiments show that the material efficiently separates each of the binary C2 hydrocarbon mixtures and even the ternary C2 hydrocarbon mixtures with high selectivity. The material keeps high separation performance even the temperature was increased to 85 °C. The material is stable and is able to be reused without loss of the separation performance.

show abstract

Enhancing the separation efficiency of a C₂H₂/C₂H₄ mixture by a chromium metal–organic framework fabricated via post-synthetic metalation

Abstract: A new Cr metal–organic framework was fabricated via post-synthetic metalation, which exhibited enhanced separation performance for C2H2/C2H4 compared to its template of the isostructural Fe framework.

Cited by 47 publications

References 53 publications

Multisite Coordination Ligands on Cyclotriphosphazene Core for the Assembly of Metal Clusters and Porous Coordination Polymers

Multisite Coordination Ligands on Cyclotriphosphazene Core for the Assembly of Metal Clusters and Porous Coordination Polymers

Facile preparation and adsorption performance of low-cost MOF@cotton fibre composite for uranium removal

Zeolitic Octahedral Metal Oxides with Ultra‐Small Micropores for C₂ Hydrocarbon Separation

Contact Info

Product

Resources

About

Enhancing the separation efficiency of a C2H2/C2H4 mixture by a chromium metal–organic framework fabricated via post-synthetic metalation

Abstract: A new Cr metal–organic framework was fabricated via post-synthetic metalation, which exhibited enhanced separation performance for C2H2/C2H4 compared to its template of the isostructural Fe framework.

Cited by 47 publications

References 53 publications

Multisite Coordination Ligands on Cyclotriphosphazene Core for the Assembly of Metal Clusters and Porous Coordination Polymers

Multisite Coordination Ligands on Cyclotriphosphazene Core for the Assembly of Metal Clusters and Porous Coordination Polymers

Facile preparation and adsorption performance of low-cost MOF@cotton fibre composite for uranium removal

Zeolitic Octahedral Metal Oxides with Ultra‐Small Micropores for C2 Hydrocarbon Separation

Contact Info

Product

Resources

About

Enhancing the separation efficiency of a C₂H₂/C₂H₄ mixture by a chromium metal–organic framework fabricated via post-synthetic metalation

Zeolitic Octahedral Metal Oxides with Ultra‐Small Micropores for C₂ Hydrocarbon Separation