Zeolitic imidazolate framework nanoleaves (ZIF-L) enhancement of strength and durability of portland cement composites

Shamsaei, Ezzatollah; Tang, Zhao Qing; Souza, Felipe Basquiroto de; Hosseini, Ehsan; Benhelal, Emad; Korayem, Asghar Habibnejad; Duan, Wenhui

doi:10.1016/j.conbuildmat.2020.122015

Cited by 26 publications

(4 citation statements)

References 61 publications

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“…The FT-IR test was also used to prove the existence of the ZIF-L layer on the Zn foil. As shown in Figure c, the Zn@ZIF-L shows a similar absorption property with the ZIF-L power, and the peaks of 1565, 1384, 1145, and 422 cm –1 are attributed to CN, CH 3 , CH, and Zn–N, respectively Figure d shows the SEM image of ZIF-L with a uniform nanoplates array structure at the obtained optimal amount of HNO 3 .…”

Section: Resultsmentioning

confidence: 73%

“…Zeolitic imidazolate frameworks (ZIFs) as a category of MOFs have been explored and applied in several research fields in the past few years, such as catalysis, gas separation, and energy storage, and so on. − Common ZIFs are made up of metal sites (e.g., Zn 2+ and Co 2+ ) and imidazole organic ligands with zeolite structure, thereby the strong chelation between N and metal ion ensuring its absorption of metal ions. , Meanwhile, ZIFs directly provide a 3D network, which is conducive to the orderly embedding of other materials such as Zn and Li. − From a catalytic view, ZIFs show effective catalytic activities due to the special Lewis acid (neighboring metal ions) and base (N in imidazole) sites. − Moreover, it has been proved that pure ZIFs possess a negligible capacity for hydrogen evolution in the field of photocatalytic hydrogen evolution . Among many types of ZIFs, a novel two-dimensional (2D) zeolitic imidazolate framework (ZIF-L) showing leaflike shape has attracted the attention of scientists, due to its greater number of active sites and higher specific area surface compared to other shapes of ZIFs. , Generally, most organic ligands are insoluble in water, and only limited MOFs can be obtained in the aqueous systems. Fortunately, benefiting from the good solubility of imidazole in water, monodisperse ZIFs can be synthesized in a cheaper aqueous phase as compared to organic phases.…”

Section: Introductionmentioning

confidence: 99%

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Uniform In Situ Grown ZIF-L Layer for Suppressing Hydrogen Evolution and Homogenizing Zn Deposition in Aqueous Zn-Ion Batteries

et al. 2022

ACS Appl. Mater. Interfaces

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The hydrogen evolution and dendrite of Zn anode are the major troubles hindering the commercialization of aqueous Zn-ion batteries (AZIBs). ZIF-Ls, a typical metal−organic framework (MOF) with a highly ordered structure and abundant functional groups, seem to be the answer for the above bottlenecks. In this paper, a uniform ZIF-L layer was obtained on the Zn surface (Zn@ZIF-L) via an in situ synthesis method to moderate the solvation structure of solid−liquid interface electrolyte reducing the contact between water and Zn, thereby relieving the hydrogen evolution and corrosion. Furthermore, density functional theory (DFT) analysis reveals the binding energy of H (−4.01 eV) and Zn (−0.82 eV) for ZIF-L is superior to that of pure Zn (H (−1.49 eV) and Zn (−0.68 eV)). Due to the multifunctional ZIF-L layer, the Zn@ZIF-L can regulate Zn deposition to overcome the dendrite for obtaining a long-life Zn anode. Consequently, the modified Zn@ZIF-L anode can cycle for 800 h at 0.25 mA cm −2 for 0.25 mAh cm −2 , while the bare Zn anode is only maintained for 422 h. Finally, a designed V 2 O 5 grown on carbon cloth (V 2 O 5 @CC

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Section: Resultsmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Uniform In Situ Grown ZIF-L Layer for Suppressing Hydrogen Evolution and Homogenizing Zn Deposition in Aqueous Zn-Ion Batteries

et al. 2022

ACS Appl. Mater. Interfaces

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“…The which signifies that the fractional metal-imidazole units in the Co-ZIF-L are still maintained. The peak position at 1575 cm −1 is assigned as the stretching vibration of the C=N groups, and the peaks at around 1138 cm −1 and 1302 cm −1 correspond to the C-H vibrations [31][32][33]. The bands at 665 cm −1 and 1003 cm −1 correspond to metal-OH stretching and bending vibrations [20,34], respectively, which reveals the formation of the metal hydroxides.…”

Section: Resultsmentioning

confidence: 98%

Synthesis of amorphous FeNiCo trimetallic hybrid electrode from ZIF precursors for efficient oxygen evolution reaction

Ma¹,

Lu²,

Wang³

et al. 2021

Nanotechnology

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Development of non-noble multi-metallic electrocatalyst with high oxygen evolution reaction (OER) activity via a simple and low-cost method is of great importance for improving the efficiency of water electro-chemical splitting. Herein, a solution impregnation strategy was proposed to synthesize novel FeNi-doped Co-ZIF-L trimetallic hybrid electrocatalyst using Co-ZIF-L as sacrificial templates and Fe and Ni ions as etchants and dopants. This synthetic strategy could be realized via the etching-coprecipitation mechanism to obtain an amorphous hybrid containing multi-metal hydroxides. The as-prepared electrocatalyst loaded on Ni foam displays a low overpotential of 245 mV at 10 mA·cm−2, a small Tafel slope of 54.9 mV·dec−1, and excellent stability at least 12 h in the OER process. The facile and efficient synthetic strategy presents a new entry for the fabrication of ZIFs-derived multi-metallic electrocatalysts for OER electrocatalysis.

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“…[66,67] DFT calculations: The free energy between different pairs of molecules was determined using DFT calculations with a cluster approach to model the surface of the nanoparticles (please see the Supporting Information). [68,69] Periodic Boundary Condition was applied. GNP was modeled with a unit cell with optimized parameters of a = b = 14.75 Å, α = β = 90.0°, and γ = 120.0° constructed to a supercell 6 × 6 × 1 Å. Dmol3 was used on the Perdew-Burke-Ernzerhof (PBE) functional with Grimme's dispersion correction (PBE-D).…”

Section: Methodsmentioning

confidence: 99%

Engineering Multimaterial Nanostructured Deposits by the Amphiphilicity Degree and Intermolecular Forces

Shariatnia

Zakertabrizi

Hosseini

et al. 2023

Adv Materials Technologies

Self Cite

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in electronics, [1] pharmaceuticals and healthcare, [2] energy harvesting and storage, [3][4][5][6] sensing, [7] coating, [8] structural application, [9][10][11] and many more. Nanofabrication techniques are generally divided into top-down and bottom-up categories. [12] Photolithography, [13] including UV, [14] focused ion beam, [15] electron-beam [16] and X-ray lithography, [17] FIB milling, [18] nanoimprint lithography [19] (stamping), dip-pen nanolithography, [20] and scanning probe lithography [21] are among the primary topdown nanofabrication techniques. These methods are specifically used for planar structures (e.g., chip-making) with micro/ nanoscale resolution features, depending on the wavelength of the source beam, and are not suitable for complicated 3D geometries. Bottom-up nanofabrication techniques are based on the self-assembly of unit compounds that use physical and chemical forces available to form larger structures. [22] Atomic layer deposition, [23] chemical [24,25] and physical vapor deposition, [26] sol-gel, [27] and DNA scaffolding [28] are among the most prominent bottomup nanofabrication methods. Self-assembly as the backbone of bottom-up fabrication techniques is the result of random collision of components within a solvent that reach an equilibrium state, either static or dynamic. [29] The resulting formation translates into deposited nanostructures through evaporation of particle-laden droplets in manufacturing techniques such as inkjet printing/direct writing, additive manufacturing, and various coating systems. [30][31][32] As the water evaporates, nanoparticles (NP) accumulate on the substrate in a form between a coffee ring shape (CRE), where the majority of the NPs gather on the periphery of the droplet, or in a disk shape (DS), where the NPs scatter across the base of the droplet. [33,34] Uniform particle dispersions, which correspond to the DS formation, are essential to scientific and industrial efforts. [35][36][37] However, their formation is impeded by the constant presence of outward radial Capillary effect driving suspended particles to the contact line, which is a result of the fluid stretching over the fixed contact line as the evaporation takes place. [38,39] One approach for amending CRE is implementing Marangoni flow, which is the result of surface tension gradient caused by either thermal effects or nonhomogeneous changes in composition, the latter of which happens within drying droplets with certain surfactants. [40][41][42][43] As a result, the exact shape of the deposits varies Achieving desired performance from self-assembly of nanoparticles (NPs) is challenging due to the stochastic nature of interactions among the constituent building blocks. Self-assembly of nano-colloids through evaporation of particle-laden droplets can be exploited to fabricate tailored nanostructures that add functionality and engineer the properties of manufactured components. The particle-particle and particle-solvent interactions, and delicate force balance among them are the main factor...

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Zeolitic imidazolate framework nanoleaves (ZIF-L) enhancement of strength and durability of portland cement composites

Cited by 26 publications

References 61 publications

Uniform In Situ Grown ZIF-L Layer for Suppressing Hydrogen Evolution and Homogenizing Zn Deposition in Aqueous Zn-Ion Batteries

Uniform In Situ Grown ZIF-L Layer for Suppressing Hydrogen Evolution and Homogenizing Zn Deposition in Aqueous Zn-Ion Batteries

Synthesis of amorphous FeNiCo trimetallic hybrid electrode from ZIF precursors for efficient oxygen evolution reaction

Engineering Multimaterial Nanostructured Deposits by the Amphiphilicity Degree and Intermolecular Forces

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