Proton conductive carboxylate-based metal–organic frameworks

Xie, Xiaoxin; Yang, Yingchao; Dou, Bao-Heng; Li, Zifeng; Li, Gang

doi:10.1016/j.ccr.2019.213100

Cited by 252 publications

(177 citation statements)

References 188 publications

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“…Metal-organic frameworks (MOFs) have attracted great interests due to the fluorescent properties [1][2][3][4][5], as well as the significant applications, such as magnetism [6][7][8], gas adsorption and separation [9][10][11], sensors or detectors [12][13][14][15][16][17], proton conduction [18], etc. Lanthanide coordination polymers including lanthanide-organic frameworks, one of the important MOFs, are generally synthesized by hydrothermal methods which require high pressure and high temperature that has impeded scalable synthesis of lanthanide MOFs and their industrial utilization [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional terbium(III) metal–organic framework constructed by thiophene-2,5-dicarboxylate: synthesis, crystal structure and fluorescent properties

Tian

Zheng

et al. 2020

SN Appl. Sci.

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A novel Tb(III) metal-organic framework was synthesized by a multi-layer diffusion method at room temperature. Adjacent Tb(III) ions were connected together by bridging carboxylic groups to construct one-dimensional chains and the metal-organic framework based on these parallel 1D chains was formed through thiophene-2,5-dicarboxylate bridges. UV-Vis and fluorescent emission spectra as well as theoretical calculation showed that organic ligands acted as sensitizers to Tb(III) fluorescence. With the excitation of 325 nm, the emission peaks of this compound were found at 488, 545, 587, and 621 nm which were attributed to 5

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Section: Introductionmentioning

confidence: 99%

Three-dimensional terbium(III) metal–organic framework constructed by thiophene-2,5-dicarboxylate: synthesis, crystal structure and fluorescent properties

Tian

Zheng

et al. 2020

SN Appl. Sci.

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“…[9][10][11][12][13] Kanda et al first reported ap rotonc onductive MOFs in 1979, [14] and since then, these materials have becomeanew field of research, making significant progress. [15][16][17][18][19][20][21][22][23][24] Unlike semicrystalline or amorphousp olymers, the high crystallinity of MOFs is very suitable for studying protont ransport pathway and the conductionm echanism, demonstrating that protonc an transit through modified groups on the surfaceo ft he cavity (e.g., H 2 O, -SO 3 Ha nd -PO 3 H 2 )a nd guests in the cavity (e.g.,i midazole, histamine and ionic liquids). [5,16,[25][26][27][28] On the other hand, based on the outstanding advantagesofMOFs, the exploration of the practical application of electrically conductive MOFs has received extensive attention, especially in the field of chemoresistive sensors.…”

Section: Introductionmentioning

confidence: 99%

Proton‐Conductive 3D Ln^III Metal–Organic Frameworks for Formic Acid Impedance Sensing

Liu

Dou

et al. 2019

Chemistry An Asian Journal

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Metal-organic frameworks (MOFs) as new classes of proton-conducting materialsh ave been highlighted in recent years. Nevertheless, the exploration of proton-conducting MOFs as formic acid sensors is extremelyl acking. Herein, we prepared two highly stable 3D isostructurall anthanide(III) MOFs, {(M(m 3 -HPhIDC)(m 2 -C 2 O 4 ) 0.5 (H 2 O))·2 H 2 O} n (M = Tb (ZZU-1); Eu (ZZU-2)) (H 3 PhIDC = 2-phenyl-1H-imidazole-4,5-dicarboxylic acid), in which the coordinated and uncoordinated water molecules and uncoordinated imidazole Na toms play decisive roles for the high-performancep roton conductiona nd recognition ability for formic acid.B oth ZZU-1 and ZZU-2 showt emperature-and humidity-dependent proton-conducting characteristics with high conductivities of 8.95 10 À4 and 4.63 10 À4 Scm -1 at 98 %R Ha nd 100 8C, respectively.I mportantly,t he impedance values of the two MOF-based sensors decrease upon exposure to formica cid vapor generated from formic aqueous solutions at 25 8Cw ith good reproducibility.B yc omparing the changes of impedance values, we can indirectly determine the concentration of HCOOHi na queous solution.T he results showedt hat the lowest detectablec oncentrations of formic acid aqueous solutions are 1.2 10 À2 mol L À1 by ZZU-1 and 2.0 10 À2 mol L À1 by ZZU-2.F urthermore,t he two sensors can distinguish formic acid vapor from interfering vapors including MeOH, N-hexane, benzene, toluene, EtOH, acetone,a cetic acid and butane. Our research provides a new platform of proton-conductive MOFs-based sensors for detecting formic acid.[a] R.

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“…In fact, CPs 1 and 2 represent unique examples of metal-containing derivatives constructed from H 4 deta. This work thus extends a variety of multifunctional carboxylic acids applied in the synthesis of coordination polymers [44][45][46][47][48][49][50].…”

Section: Discussionmentioning

confidence: 72%

A Flexible Aromatic Tetracarboxylate as a New Linker for Coordination Polymers

Kirillov

2020

Crystals

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Two new cadmium(II)-based materials, featuring two-dimensional (2D) [Cd2(μ6-deta)(bpy)(H2O)]n (1) and three-dimensional (3D) [Cd2(μ5-deta)(bpy)2(H2O)]n (2) structures, were constructed by the hydrothermal method from 2,3′,4′,5-diphenyl ether tetracarboxylic acid (H4deta) as an unexplored linker in research on coordination polymers (CPs) and 2,2′-bipyridine (bpy) as a mediator of crystallization. Microcrystalline samples of 1 and 2 were analyzed by IR/PXRD/EA/TGA and X-ray diffraction using single crystals. Structures and topologies of CPs 1 and 2 were established, revealing a 4,6L45 topological layer in 1 and a 3,5T1 topological framework in 2. Structural differences for 1 and 2 are attributed to distinct molar ratios between Cd2+ and bpy during the hydrothermal synthesis. Luminescence and thermal behavior of the obtained materials were also investigated. The present work opens up the use of an unexplored 2,3′,4′,5-diphenyl ether tetracarboxylic acid as a versatile and flexible linker toward the generation of functional coordination polymer materials.

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Proton conductive carboxylate-based metal–organic frameworks

Cited by 252 publications

References 188 publications

Three-dimensional terbium(III) metal–organic framework constructed by thiophene-2,5-dicarboxylate: synthesis, crystal structure and fluorescent properties

Three-dimensional terbium(III) metal–organic framework constructed by thiophene-2,5-dicarboxylate: synthesis, crystal structure and fluorescent properties

Proton‐Conductive 3D Ln^III Metal–Organic Frameworks for Formic Acid Impedance Sensing

A Flexible Aromatic Tetracarboxylate as a New Linker for Coordination Polymers

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Proton conductive carboxylate-based metal–organic frameworks

Cited by 252 publications

References 188 publications

Three-dimensional terbium(III) metal–organic framework constructed by thiophene-2,5-dicarboxylate: synthesis, crystal structure and fluorescent properties

Three-dimensional terbium(III) metal–organic framework constructed by thiophene-2,5-dicarboxylate: synthesis, crystal structure and fluorescent properties

Proton‐Conductive 3D LnIII Metal–Organic Frameworks for Formic Acid Impedance Sensing

A Flexible Aromatic Tetracarboxylate as a New Linker for Coordination Polymers

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Proton‐Conductive 3D Ln^III Metal–Organic Frameworks for Formic Acid Impedance Sensing