A high pressure pathway toward boron-based nanostructured solids

Grosjean, Rémi; Godec, Yann Le; Delacroix, Simon; Gouget, Guillaume; Beaunier, Patricia; Ersen, Ovidiu; Ihiawakrim, Dris; Kurakevych, Oleksandr O.; Chanéac, Corinne; Portehault, David

doi:10.1039/c8dt00932e

Cited by 29 publications

(26 citation statements)

References 51 publications

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“…Such views lead to innovative works in developing novel membrane materials having a patterned surface. However, more comprehensive applications of modifying the surface chemistry have been limited by uncertainty concerning cost, reliability, and environmental sustainability [24,25,26,27,28,29,30].…”

Section: Introductionmentioning

confidence: 99%

Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review

et al. 2019

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Membrane fouling is seen as the main culprit that hinders the widespread of membrane application in liquid-based filtration. Therefore, fouling management is key for the successful implementation of membrane processes, and it is done across all magnitudes. For optimum operation, membrane developments and surface modifications have largely been reported, including membrane surface patterning. Membrane surface patterning involves structural modification of the membrane surface to induce secondary flow due to eddies, which mitigate foulant agglomeration and increase the effective surface area for improved permeance and antifouling properties. This paper reviews surface patterning approaches used for fouling mitigation in water and wastewater treatments. The focus is given on the pattern formation methods and their effect on overall process performances.

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Section: Introductionmentioning

confidence: 99%

Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review

et al. 2019

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“…Interest in Fe-based cathodes has been reignited by the growth of novel alkali-rich systems with excess capacities beyond the traditional transition metal (TM) redox couples. [14,15] Novel Fe-based systems including Li 5 FeO 4, [16][17][18][19] Li 4 FeSbO 6 , [20] and cation-disordered Li 1.24 Fe 0.38 Ti 0.38 O 2 , [21] Li 1.3 Fe 0.4 Nb 0.3 O 2 , [15] and related compositions [22,23] have achieved reversible capacities over 200 mAh/g. As with LiFeO 2 , these systems often display rapid capacity fade [17,22] and Fe 2 + /3 + activation on cycling.…”

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confidence: 99%

Electrochemical Utilization of Iron IV in the Li_1.3Fe_0.4Nb_0.3O₂ Disordered Rocksalt Cathode

Lebens-Higgins

Chung

Temprano

et al. 2021

Batteries & Supercaps

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Interest in alkali‐rich oxide cathodes has grown in an effort to identify systems that provide high energy densities through reversible oxygen redox. However, some of the most promising compositions such as those based solely on earth abundant elements, e. g., iron and manganese, suffer from poor capacity retention and large hysteresis. Here, we use the disordered rocksalt cathode, Li1.3Fe0.4Nb0.3O2, as a model system to identify the underlying origin for the poor performance of Li‐rich iron‐based cathodes. Using elementally specific spectroscopic probes, we find the first charge is primarily accounted for by iron oxidation to 4+ below 4.25 V and O2 gas release beyond 4.25 V with no evidence of bulk oxygen redox. Although the Li1.3Fe0.4Nb0.3O2 is not a viable oxygen redox cathode, the iron 3+/4+ redox couple can be used reversibly during cycling.

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“…The relation between the absorption coefficient (α) was calculated using the Kubelka-Munk equation, [56] and the incident photon energy (hν) can be determined by Tauc's relationship. [57] The optical energy gap (E g ), plot to (αhν) 2 versus the photon energy (hν) of N-arylated ferrocene pyrazole, was experimentally determined using the optical absorption data, as shown in Figure S16. The optical band gap is 4.03 (1) and 4.19 (2) eV; these band gaps can be effectively modulated by varying the substituents without changing the ferrocene pyrazole moiety, and these band gap values are comparable with theoretical energy gap by DFT.…”

Section: Absorption Studiesmentioning

confidence: 99%

Aggregation induced emission (AIE)‐active N‐arylated ferrocenyl pyrazole‐based push–pull chromophores: Structural, photophysical, theoretical and effect of substitution on second‐order non‐linear optical properties

David

Kamini

Thirumoorthy

et al. 2021

Applied Organom Chemis

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In this study, we report the synthesis and structural characterization of Narylated ferrocenyl pyrazole [Fc-Pz-(CF 3)-C 6 H 5-R] (R = CH 3 , 1; OCH 3 2), where Pz = pyrazole and Fc = ferrocenyl = Fe(η 5-C 5 H 5)(η 5-C 5 H 4) chromophores with D-π-A-π-D system. The solvatochromic behaviour of compounds 1 and 2 was investigated in various solvents from non-polar to polar. When solvent polarity increases, the charge transfer process produces the more polarized excited state, and consequently, positive solvatochromism was observed. The emission performance of the compounds is weak luminescence in CH 3 CN solution but becomes high emissive in a mixture of water/CH 3 CN fraction at (f w) 90%, demonstrating aggregation-induced emission (AIE) characteristics, and the mechanism of AIE has been attributed to restricted intramolecular rotation (RIR) process. The time-resolved fluorescence lifetime studies have been demonstrated in water/ CH 3 CN mixture at 90%, as it shows three relaxation pathways in their fluorescence decay. In addition, density functional theory calculations have been employed to optimize the geometry of the molecules, followed by computation of dipole moment (μ), first hyperpolarizability (β) using various functionals (B3LYP, long-range corrected CAM-B3LYP and LC-BLYP) and frontier molecular orbital levels for understanding the charge transfer, electrochemical and non-linear optical (NLO) properties. The second-order non-linear optical properties were studied by hyper-Rayleigh scattering (HRS) technique using an incident wavelength at 1064 nm. The chromophores exhibited the first hyperpolarizability (β HRS = 38.6 × 10 −30 e.s.u. for 1 and β HRS = 116.8 × 10 −30 e.s. u. for 2) and were found to be 6.8 times greater than that of the reference material, p-nitroaniline (pNA) (β HRS = 17.1 × 10 −30 e.s.u.). Also, compound 2 shows higher NLO effect because the presence of-OCH 3 group makes effective charge transfer process by mesomeric effect (+M).

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A high pressure pathway toward boron-based nanostructured solids

Cited by 29 publications

References 51 publications

Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review

Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review

Electrochemical Utilization of Iron IV in the Li_1.3Fe_0.4Nb_0.3O₂ Disordered Rocksalt Cathode

Aggregation induced emission (AIE)‐active N‐arylated ferrocenyl pyrazole‐based push–pull chromophores: Structural, photophysical, theoretical and effect of substitution on second‐order non‐linear optical properties

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A high pressure pathway toward boron-based nanostructured solids

Cited by 29 publications

References 51 publications

Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review

Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review

Electrochemical Utilization of Iron IV in the Li1.3Fe0.4Nb0.3O2 Disordered Rocksalt Cathode

Aggregation induced emission (AIE)‐active N‐arylated ferrocenyl pyrazole‐based push–pull chromophores: Structural, photophysical, theoretical and effect of substitution on second‐order non‐linear optical properties

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Electrochemical Utilization of Iron IV in the Li_1.3Fe_0.4Nb_0.3O₂ Disordered Rocksalt Cathode