Enhancement in electrical conductivity of a porous indium based metal–organic framework upon I<sub>2</sub> uptake: combined experimental and theoretical investigations

Mani, Prabu; Mandal, Nilangshu; Roopesh, Mekkat; Gopalakrishnan, Harikrishnan; Datta, Ayan; Mandal, Sukhendu

doi:10.1039/d0tc00475h

Cited by 15 publications

(2 citation statements)

References 55 publications

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“…demonstrated ca. 58 % reduction in optical band gap (from 3.73 to 1.55 eV) upon I 2 insertion for 15 days into an indium based MOF, [DMA][In(TDC) 2 ] (TDC=2,5‐Thiophene‐dicarboxylic acid) [169] . Theoretical study implicated the optimum position of neutral guest molecule in between the square sublattice.…”

Section: Guest Incorporated Conductivitymentioning

confidence: 99%

Conductive Metal‐Organic Frameworks: Electronic Structure and Electrochemical Applications

Nath

Asha

Mandal

2021

Chemistry A European J

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Smarter and minimization of devices are consistently substantial to shape the energy landscape. Significant amounts of endeavours have come forward as promising steps to surmount this formidable challenge. It is undeniable that material scientists were contemplating smarter material beyond purely inorganic or organic materials. To our delight, metal‐organic frameworks (MOFs), an inorganic‐organic hybrid scaffold with unprecedented tunability and smart functionalities, have recently started their journey as an alternative. In this review, we focus on such propitious potential of MOFs that was untapped over a long time. We cover the synthetic strategies and (or) post‐synthetic modifications towards the formation of conductive MOFs and their underlying concepts of charge transfer with structural aspects. We addressed theoretical calculations with the experimental outcomes and spectroelectrochemistry, which will trigger vigorous impetus about intrinsic electronic behaviour of the conductive frameworks. Finally, we discussed electrocatalysts and energy storage devices stemming from conductive MOFs to meet energy demand in the near future.

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Section: Guest Incorporated Conductivitymentioning

confidence: 99%

Conductive Metal‐Organic Frameworks: Electronic Structure and Electrochemical Applications

Nath

Asha

Mandal

2021

Chemistry A European J

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“…In recent years, metal-organic framework materials (MOFs) have attracted much attention from scholars due to their advantages of adjustable structure, [15][16][17] porosity, [18,19] large specific surface area, [20][21][22] and unsaturated metal sites. [23,24] Aluminum 1, 4benzenedicarboxylate (Al (OH)[O 2 C-C 6 H 4 -CO 2 ]Á[HO 2 C-C 6 H 4 -CO 2 H] 0.70 , abbreviated as MIL-53(Al)) has a regular pore structure, a large specific surface area, and unsaturated points, [25,26] which provides good attachment sites for catalysis, especially the active sites of Al-O-H, thereby showing strong catalytic activity in the disproportionation of methyltrichlorosilane and trimethylchlorosilane to dimethyldichlorosilane.…”

Section: Introductionmentioning

confidence: 99%

Study on the mechanism of catalytic synthesis of dimethyldichlorosilane by AlCl₃/MIL‐53(Al)@γ‐Al₂O₃

Wang

et al. 2020

Applied Organom Chemis

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Dimethyldichlorosilane, one of the most consumed organosilicon monomers in the industry, can be prepared in a highly efficient and environmentally friendly synthesis method of disproportionating methylchlorosilanes. However, the internal mechanism of the reaction remains unclear. In this paper, the mechanism catalyzed by AlCl 3 /MIL-53(Al) and AlCl 3 /MIL-53(Al) @γ-Al 2 O 3 catalysts was calculated at B3LYP/6-311++G(3df, 2pd) level by using the density functional theory (DFT). The results showed that although the two catalysts had similar active structures, the catalytic effects were significantly different. The Lewis acid center on the surface of γ-Al 2 O 3 in the core-shell catalyst is complementary to the classic Lewis acid AlCl 3 through the spatial superposition effect, which greatly improves the Lewis acid catalytic activity of AlCl 3 /MIL-53(Al)@γ-Al 2 O 3 .

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Ten‐Million‐Fold Increase in the Electrical Conductivity of a MOF by Doping of Iodine Into MOF Integrated Mixed Matrix Membrane

Bedi,

Bharti,

Banerjee

et al. 2024

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The development of electrically conductive membranes is essential for advancing future technologies like electronic devices, supercapacitors, and batteries. Newly synthesized doubly interpenetrated 3D‐Cd‐MOF (Metal‐Organic‐Framework) containing angular tetra‐carboxylate is found to display very poor electrical conductivity (10−11 S cm−1). However, it exhibits an exceptional ability to adsorb I2 (I2@Cd‐MOF) which shows increased electrical conductivity of the order of 10−8 S cm−1. Following these results, the Cd‐MOF is integrated into the PVDF‐PVP (Polyvinylidene fluoride‐Polyvinylpyrrolidone) polymeric mixed matrix membrane (MMM) and explores their I2 adsorption capabilities and electrical conductivities before and after I2 adsorption. Four polymeric MMMs with the loading of Cd‐MOF 0, 20, 40, and 50% are tested for their I2 adsorption ability and their respective electrical conductivities. The 50% Cd‐MOF‐loaded MMM is found to exhibit higher adsorption of I2 (685 mg g−1) and significant enhancement in conductivity from 10−11 to 10−4 S cm−1. The raise in the electrical conductivity by 10 million times is attributed to the synergistic interactions between I2, Cd‐MOF, PVDF, and PVP polymers as well as the increase in the concentration of charge carriers (holes) within the frameworks. This work serves as blueprint for controlling charge transfer in MMM to tune their electrical conductivity which opens a large window for advanced device applications.

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Enhancement in electrical conductivity of a porous indium based metal–organic framework upon I₂ uptake: combined experimental and theoretical investigations

Abstract: Combined experimental and theoretical calculations shed light on the enhancement of conductivity through I2 incorporation in an indium metal–organic framework.

Cited by 15 publications

References 55 publications

Conductive Metal‐Organic Frameworks: Electronic Structure and Electrochemical Applications

Conductive Metal‐Organic Frameworks: Electronic Structure and Electrochemical Applications

Study on the mechanism of catalytic synthesis of dimethyldichlorosilane by AlCl₃/MIL‐53(Al)@γ‐Al₂O₃

Ten‐Million‐Fold Increase in the Electrical Conductivity of a MOF by Doping of Iodine Into MOF Integrated Mixed Matrix Membrane

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Enhancement in electrical conductivity of a porous indium based metal–organic framework upon I2 uptake: combined experimental and theoretical investigations

Abstract: Combined experimental and theoretical calculations shed light on the enhancement of conductivity through I2 incorporation in an indium metal–organic framework.

Cited by 15 publications

References 55 publications

Conductive Metal‐Organic Frameworks: Electronic Structure and Electrochemical Applications

Conductive Metal‐Organic Frameworks: Electronic Structure and Electrochemical Applications

Study on the mechanism of catalytic synthesis of dimethyldichlorosilane by AlCl3/MIL‐53(Al)@γ‐Al2O3

Ten‐Million‐Fold Increase in the Electrical Conductivity of a MOF by Doping of Iodine Into MOF Integrated Mixed Matrix Membrane

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Enhancement in electrical conductivity of a porous indium based metal–organic framework upon I₂ uptake: combined experimental and theoretical investigations

Study on the mechanism of catalytic synthesis of dimethyldichlorosilane by AlCl₃/MIL‐53(Al)@γ‐Al₂O₃