Imidazolium-Based Porous Organic Polymers: Anion Exchange-Driven Capture and Luminescent Probe of Cr2O72–

Su, Yanqing; Wang, Yangxin; Li, Xiaoju; Li, Xin‐Xiong; Wang, Ruihu

doi:10.1021/acsami.6b05918

Cited by 116 publications

(67 citation statements)

References 40 publications

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“…RIO-55 presented high sulfate adsorption with 52.67 mg g −1 (K L = 1.70) for RIO-55. The values of Q max presented by both CONs were low when compared to other anion exchange materials [26]. The NO 3 uptake of RIO-43 was below the detection limit of the equipment and therefore could not be determined.…”

Section: Resultsmentioning

confidence: 80%

Dye-based covalent organic networks

et al. 2020

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This contribution presents four dye-based CONs derived from the reaction of triformylphloroglucinol with thionin acetate (RIO-43), safranin chloride (RIO-51), phenosafranin (RIO-47), and Bismarck brown Y (RIO-55). These materials, called Covalent Organic Networks (CONs), are insoluble solids formed by organic lamellar stacked structures and present permanent porosity, light absorption across the whole visible spectrum, fluorescence, ion exchange capability, and ion and electron conductivity. Periodic DFT calculations carried out indicated that the bent nature of most of those building blocks affords conductive extended materials containing pores with the shape of three-petal flowers, with the anion positioned at the petals. The turbostratic disorder makes only the center of the flower-shaped pores accessible, decreasing the specific surface areas. The material that has a higher surface area is the one derived from thionin acetate (RIO-43), such as the highest electrical conductivity (1.96 × 10 -5 S cm −1 ), followed by RIO-47 (1.12 × 10 -7 S cm −1 ), RIO-55 (1.58 × 10 -7 S cm −1 ) and RIO-51 (3.26 × 10 -7 S cm −1 ).

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Section: Resultsmentioning

confidence: 80%

Dye-based covalent organic networks

et al. 2020

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“…Pd‐catalyzed coupling reactions (Sonogashira–Hagihara cross‐coupling or Suzuki–Miyaura coupling) are one of the most common and effective methods. However, two main drawbacks such as the difficulty to remove catalyst residues and the effect of disturbing the intrinsic performances of polymers limit their industrial application greatly . Fortunately, the Ni‐catalyzed Yamamoto–Ullmann coupling reaction can also be used to prepare porous polymers, and Ni residues were removed easily by treatment with inorganic acid, which thus avoided the use of noble metals .…”

Section: Resultsmentioning

confidence: 99%

“…However,t wo main drawbacks such as the difficulty to remove catalyst residues and the effect of disturbing the intrinsic performances of polymers limit their industrial application greatly. [17] Fortunately,t he Nicatalyzed Yamamoto-Ullmann coupling reactionc an also be used to preparep orousp olymers, and Ni residues were removede asily by treatment with inorganic acid, which thus avoided the use of noble metals. [18] We utilized the typical Yamamoto-Ullmann coupling reaction to preparee fficient heterogeneousc atalysts and we employed them into the CO 2 /epoxide cycloaddition reaction.…”

Section: Preparation Of Catalystsmentioning

confidence: 99%

Charged Metalloporphyrin Polymers for Cooperative Synthesis of Cyclic Carbonates from CO₂ under Ambient Conditions

et al. 2017

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A facile and one-pot synthesis of metalloporphyrin-based ionic porous organic polymers (M-iPOPs) was performed through a typical Yamamoto-Ullmann coupling reaction for the first time. We used various characterization techniques to demonstrate that these strongly polar Al-based materials (Al-iPOP) possessed a relatively uniform microporosity, good swellable features, and a good CO capture capacity. If we consider the particular physicochemical properties, heterogeneous Al-iPOP, which bears both a metal active center and halogen anion, acted as a bifunctional catalyst for the solvent- and additive-free synthesis of cyclic carbonates from various epoxides and CO with an excellent activity and good recyclability under mild conditions. Interestingly, these CO -philic materials could catalyze the cycloaddition reaction smoothly by using simulated flue gas (15 % CO in N , v/v) as a raw material, which indicates that a stable local microenvironment and polymer swellability might promote the transformation. Thus, the introduction of polar ionic liquid units into metalloporphyrin-based porous materials is regarded as a promising new strategy for the chemical conversion of CO .

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“…Different kinds of atoms introduced into various materials are proven to be effective to enhance their properties dramatically, e.g., nitrogen, phosphorus, fluorine, boron, oxygen, and sulfur enriched materials, because of their electronic effect, complexation effect, etc . The strongest electronegativity, as well as the hydrophobicity of fluorine, makes it a promising atom for novel porous polymers.…”

Section: Water Treatmentmentioning

confidence: 99%

Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

et al. 2018

Advanced Materials

375

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have triggered serious threats to the survival and development of mankind. Consequently, exploring novel materials with task-specific applications is of fundamental importance for the sustainable development of economy and society. The burgeoning progress of nanomaterials in recent years has demonstrated that porosity is one of the essential factors in determining material properties for possible breakthroughs in their applications. Therefore, porous materials are playing important roles in many well-established applications and emerging technologies for challenging social and economic issues due to their intrinsic characteristics of large surface areas, open channels, and the possible control over the pore environment. According to International Union of Pure and Applied Chemistry, the pores of porous materials are classified into three categories by their pore sizes: micropores are smaller than 2 nm, mesopores are in the range of 2-50 nm, and macropores are larger than 50 nm. [1] Their pore walls include the organic skeleton (e.g., porous polymers, organic porous cages, and supramolecular organic frameworks), the inorganic skeleton (e.g., zeolites, porous carbons, and mesoporous silica), and the hybrid skeleton (e.g., metal-organic frameworks (MOFs)).Among the developed porous materials, porous polymers have attracted an increasing level of research interest owing to their potential to integrate the advantages of both porous materials and polymers. [2,3] Table 1 lists the characteristic structural features and properties of porous polymers, and gives a systematic comparison to other typical porous materials, such as zeolites, porous carbons, and MOFs. Porous polymers, zeolites, porous carbons, and MOFs share a number of features such as high permanent porosities, large surface areas, and designable pores and voids. However, they are different in several important aspects. The major advantages of porous polymers over many other porous materials are their chemical diversity and easy processability. Compared to zeolites and porous carbons, the synthesis of porous polymers is generally more versatile and can be approached in a way that conforms to the concept of rational materials design. Similar to MOFs, porous polymers inherit the excellent chemical and physical tunability afforded by the versatility of organic chemistry. Furthermore, Exploring advanced porous materials is of critical importance in the development of science and technology. Porous polymers, being famous for their all-organic components, tailored pore structures, and adjustable chemical components, have attracted an increasing level of research interest in a large number of applications, including gas adsorption/storage, separation, catalysis, environmental remediation, energy, optoelectronics, and health. Recent years have witnessed tremendous research breakthroughs in these fields thanks to the unique pore structures and versatile skeletons of porous polymers. Here, recent milestones in the diverse applications of porous polymers are presented, ...

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Imidazolium-Based Porous Organic Polymers: Anion Exchange-Driven Capture and Luminescent Probe of Cr₂O₇^2–

Cited by 116 publications

References 40 publications

Dye-based covalent organic networks

Dye-based covalent organic networks

Charged Metalloporphyrin Polymers for Cooperative Synthesis of Cyclic Carbonates from CO₂ under Ambient Conditions

Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

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Imidazolium-Based Porous Organic Polymers: Anion Exchange-Driven Capture and Luminescent Probe of Cr2O72–

Cited by 116 publications

References 40 publications

Dye-based covalent organic networks

Dye-based covalent organic networks

Charged Metalloporphyrin Polymers for Cooperative Synthesis of Cyclic Carbonates from CO2 under Ambient Conditions

Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

Contact Info

Product

Resources

About

Imidazolium-Based Porous Organic Polymers: Anion Exchange-Driven Capture and Luminescent Probe of Cr₂O₇^2–

Charged Metalloporphyrin Polymers for Cooperative Synthesis of Cyclic Carbonates from CO₂ under Ambient Conditions