A novel citric acid facilitated supramolecular Zinc(II)-metallogel: Toward semiconducting device applications

Dhibar, Subhendu; Babu, Saranya R.; Mohan, Aiswarya; Chandra, Goutam Kumar; Bhattacharjee, Subham; Karmakar, Kripasindhu; Karmakar, Priya; Rahaman, S.K. Mehebub; Predeep, P.; Saha, Bidyut

doi:10.1016/j.molliq.2023.121348

Cited by 15 publications

(3 citation statements)

References 154 publications

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“…According to the FTIR curve of HGL, the characteristic peak of the –OH tensile vibration appears at 3438 cm –1 . In addition, antisymmetric stretching vibration and symmetric stretching vibration of carboxyl groups in carboxylate salts appear at 1579 and 1399 cm –1 , respectively. − The typical peaks of PA and EG are layered on top of PSE’s characteristic peaks, as can be seen in the FTIR curve. Similarly, by observation of the FTIR curves of PHE and PSHE2, it can be found that their FTIR curves are similar, and the positions of the characteristic peaks are basically the same; all of them contain the characteristic peaks of PA, EG, and HGL, and no new characteristic peaks appear.…”

Section: Resultsmentioning

confidence: 93%

Thermal Management System with Intrinsically High Thermal Conductive and Antileakage Composite Phase-Change Materials for Battery Module

Liu,

Deng,

Yang

et al. 2024

ACS Appl. Energy Mater.

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Phase-change materials with high latent heat can release and absorb large amounts of heat, which has potential application in various fields such as energy storage, electronic devices, and electrical vehicles (EVs). However, there is still a need to improve thermal conductivity and antileakage performances. Herein, a threedimensional (3D) metal−organic hydrogel (HGL) has been prepared by chelating metal ions and organic acids, and the composite phase-change material (CPCM) containing paraffin, HGL and styrene-butadiene-styrene block copolymer (SBS) and expanded graphite (PSHE) is designed and prepared. The experimental results show that PSHE exhibits high thermal conductivity (1.64 W/m•K), good thermal stability (98.68%), and super enthalpy (185.4 J/g). It is contributed that the presence of zinc ions in HGL with 3D structure can not only reduce the leakage of PA at high temperature but also improve the thermal conductivity of CPCM. Especially, PSHE2 with HGL: SBS exhibits optimum thermal conductivity at 1:1 ratio, which improves nearly five times than that of PA. Additionally, even at 2 C discharge rate, the maximum temperature (T max ) and maximum temperature difference (ΔT max ) of battery module with PSHE2 can be controlled below 45.6 and 3.5 °C, respectively. It reveals that PSHE2 can guarantee the long-term cycling stability and thermal stability. Thus, this research can elucidate intrinsically high thermal conductivity and thermal stability CPCM, which has great prospect for next-generation energy storage and EVs fields.

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Section: Resultsmentioning

confidence: 93%

Thermal Management System with Intrinsically High Thermal Conductive and Antileakage Composite Phase-Change Materials for Battery Module

Liu,

Deng,

Yang

et al. 2024

ACS Appl. Energy Mater.

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“…LMWGs can encapsulate and release biologically active compounds such as drugs, proteins, or vitamins, making them valuable for controlled-release applications that can be utilized in biomedical applications such as drug delivery, tissue engineering, and regenerative medicine. LMWGs can accommodate different metal ions to form metallogels − that can be used for sensing applications, bioinspired catalysis, , anticancer properties, and molecular recognitions. , …”

Section: Introductionmentioning

confidence: 99%

A Siderophore Mimicking Gelation Component for Capturing and Self-Separation of Fe(III) from an Aqueous Solution of Mixture of Metal Ions

Munjal,

Kyarikwal,

Sarkar

et al. 2024

Inorg. Chem.

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The carbohydrazide-based gelation component N 2 ,N 4 ,N 6 -(1,3,5-triazine-2,4,6-triyl)tris(benzene-1,3,5-tricarbohydrazide) (CBTC) was synthesized and characterized using various spectroscopic tools. CBTC and trimesic acid (TMA) get selfassembled to form metallogel with Fe 3+ , specifically through various noncovalent interactions in a DMSO and H 2 O mixture. The self-assembly shows remarkable specificity toward Fe(III) among different transition metal salts. It is pertinent to point out that the binding specificity for Fe 3+ can also be found in nature in the form of siderophores, as they are mainly involved in scavenging iron selectively from the surroundings. DFT studies have been used to investigate the possible interaction between the different components of the iron metallogel. To determine the selectivity of CBTC for iron, CBTC, along with trimesic acid, is used to interact with other metal ions, including Fe(III) ions, in a single system. The gelation components CBTC and TMA selectively bind with iron(III), which leads to the formation of metallogel and gets separated as a discrete layer, leaving the other metal ions in the solution. Therefore, CBTC and TMA together show iron-scavenging properties. This selective scavenging property is explored through FE-SEM, XPS, PXRD, IR, and ICP-AES analysis. The FE-SEM analysis shows a flower-petal-like morphology for the Fe(III) metallogel. The resemblance in the CBTC-TMA-Fe metallogel and metallogel obtained from the mixture of different metal salts is established through FE-SEM images and XPS analysis. The release of iron from the metallogel is achieved with the help of ascorbic acid, which converts Fe 3+ to Fe 2+ . In biological systems, iron also gets released similarly from siderophores. This is the first report where the synthesized gelation component CBTC molecule is capable of scavenging out iron in the form of metallogel and self-separating from the aqueous mixture in the presence of various other metal ions.

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“…The arrangement of the molecular interaction between the gelator molecules and entrapped solvents gets perturbed by such external stimuli, and significant changes in the associated properties of the soft materials can be observed and exploited. Various noncovalent interactions such as van der Waals, hydrophobic, dipole–dipole, and H-bonding interactions play defining roles in tuning the structures. − Although the organic gelator molecules can form organogels, the incorporation of metal ions inside them can impart some additional features to make metallogels suitable for various applications such as dye adsorption, biomaterials, catalysis, drug delivery, , material science, sensing, antimicrobial activity, artificial light-harvesting systems, semiconducting devices, − and many others. , It is also worth mentioning that in some cases, the insertion of metal in an organic system can make it prone to gel formation due to the additional force of interactions between the organic entity and metal atoms/ions (Figure ). When employing the metallogels for different functionalities, one of the crucial factors is the gel strength.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Gel Strength and Catalytic Performance of a Nanocomposite Catalyst by Incorporating a Reinforcing Hydrogen-Bonding Component

Nautiyal,

Kyarikwal,

Munjal

et al. 2024

ACS Appl. Eng. Mater.

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The gelator molecule triethylammonium 5-(3,5-bis((1H-tetrazol-5-yl)carbamoyl)benzamido)tetrazol-1-ide (G7) has been studied in our previous work, where G7 formed an organogel, metallogels, and silver nanocomposite which was used as a catalyst for the reduction of nitroaromatics. During the catalytic study of the nanocomposite M 1 G7AgNPs, it was found that the recyclability of the catalyst decreases with the increasing number of catalytic cycles due to the aggregation of silver nanoparticles. From there, the motivation is to increase the strength of the gel network so that the synthesis of a more stabilized nanocomposite can be obtained. To increase the strength of organogel G7 and study the effect of this modification on the catalytic activity of its nanocomposite catalyst, a molecule with H-bonding donor and acceptor sites, N 2,N 4,N 6-tri(pyridin-2-yl)-1,3,5-triazine-2,4,6-triamine (TPTT), has been synthesized and characterized by spectroscopic techniques. TPTT (or T) and G7 formed a reinforced gel in a DMSO:H2O mixture and exhibited an effect of strong hydrogen bond formation on the rheological and catalytic properties of the organogel and metallogel of G7T. The combined gelator system fabricated three metallogels: M 1 G7T, M 2 G7T, and M 3 G7T (M1 = Fe(III), M2 = Cu(II), and M3 = Ag(I)). Among these, M 1 G7T has been used for the production and stability of silver nanoparticles and formed M 1 G7TAg nanocomposites. This dual metal system has been used as a catalyst to reduce nitro substituents, i.e. 4-nitrophenol, 4-nitroaniline, 2-amino-5-nitrobenzonitrile, etc., into their respective amine products. Here, during the reaction the substrate which contained adjacent nitrile and amine functional groups shows indazole formation, which is a very important part of organic transformations. The recyclability of the catalyst has been done with the conversion of 4-nitrophenol to 4-aminophenol and it was found that it can be unchanged even with five repeating reactions. The organogels and metallogels of the combined G7 and T molecule show enhancement in storage modulus from 586 to 3091 Pa, showing that after the combination of the T molecule with G7, a strong hydrogen-bond interaction increases; therefore, the strength of organogels and metallogels also increases. Additionally, M 1 G7TAg demonstrates the fabrication of metallogels using G7 and T, exhibiting thixotropic behavior that is validated by time oscillation sweep studies. Therefore, the work shows major changes in the rheological properties of G7T as compared to the G7 organogel. Due to increasing strength, the stabilization of silver nanoparticles inside the metallogel network (M 1 G7T) increases, increasing the recyclability of nanocomposite catalyst M 1 G7TAg.

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A novel citric acid facilitated supramolecular Zinc(II)-metallogel: Toward semiconducting device applications

Cited by 15 publications

References 154 publications

Thermal Management System with Intrinsically High Thermal Conductive and Antileakage Composite Phase-Change Materials for Battery Module

Thermal Management System with Intrinsically High Thermal Conductive and Antileakage Composite Phase-Change Materials for Battery Module

A Siderophore Mimicking Gelation Component for Capturing and Self-Separation of Fe(III) from an Aqueous Solution of Mixture of Metal Ions

Enhancing Gel Strength and Catalytic Performance of a Nanocomposite Catalyst by Incorporating a Reinforcing Hydrogen-Bonding Component

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