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·RESEARCH ARTICLE De IntercalationofIodoplumbate DMSO xComplexfor UniaxiallyOrientedHalidePerovskiteThin FilmSolarCells JunhyoungPark SeongheonKim
FTIR analysis of hydrogels rinsed and soaked in DI water for 24 h shows typical PAM hydrogel resonances at 3327 and 3185 cm −1 for the N H stretch and a strong absorption at 1650 cm −1 correlated with stretching of C O bonds 46 On the other hand the DMSO modified hydrogel exhibits stronger absorption peaks at 1310 cm −1 and 1412 cm −1 associated with CH
·An average increase of nm for the interplanar distance was found after swelling with DMSO intercalation BET analysis revealed a decrease in the surface area from m2/g to m2/g of Na Mt when modified with DMSO The porosity increased from SMAT to nm DMSO SMAT after the application of the methodology
·In this context the paper presents a comprehensive theoretical comparison of the electrochemical electrical and physical properties of iron Fe cobalt Co manganese Mn chromium Cr and vanadium V based LiMPO4 materials for cathode design in lithium Li ion battery applications using the intercalation principle
·In principle the maximum degree of intercalation DI max can be achieved if the amount of reagent in the thin solution film on the Kaol particles is sufficient to form a complete monomolecular layer Aging the wetted samples at 60 80 °C was found the most effective for such direct intercalation with U DMSO and NMF Here the slight
·Learning from past lessons on alkali metal intercalation in graphite recent breakthroughs in sodium and potassium intercalation in graphite have been demonstrated for Na ion batteries and K ion batteries Interestingly some significant differences proved to exist for the intercalation of Na and K into graphite compared with the Li case
·Few layer MXene materials were obtained by etching Ti3AlC2 with HF and ultrasonically exfoliated with dimethyl sulfoxide DMSO intercalation By compounding it with lithium iron phosphate LFP obtained using the solvothermal method a cathode material LFP/M with excellent electrochemical properties was obtained LFP/M exhibits ideal rate performance
·Dimethylsulfoxide DMSO kaolinite complexes of low and high defect kaolinites were studied by thermo IR spectroscopy analysis Samples were gradually heated up to 170°C three hours at each
·The XRD results in Fig 1b show a layered structure for both the pristine TiS 2 single crystal and the hybrid materials TiS 2 HA x DMSO y is the material after electrochemical intercalation
·Three models of the kaolinite dimethylsulfoxide intercalate with 25 50 and 100% saturation of dimethylsulfoxide DMSO have been investigated by means of density functional theory DFT fully periodic approach The analysis of interatomic distances was used to characterize interactions between DMSO molecules and kaolinite layers It was found that the
·configurations for water intercalation and 8 for DMSO intercalation were chosen for further structural optimization All atoms of the intercalated structures are fully relaxed The intercalation energies and d spacing Figure 2b and c of each configuration were calculated with DFT D scheme which
·The molecular mechanism of DMSO intercalation has been recently revisited using molecular dynamics simulation The corresponding principles and advantages are summarized Representative
·The success of the DMSO intercalation is attested by the presence of the 001 reflection at nm • 2θ characteristic for DMSO− kaolinite complexes Mbey et al 2020 However it
This study focused on the deintercalation of dimethyl sulfoxide DMSO from a kaolinite DMSO complex in various solvents The use of kaolinite as filler in polymer clay composite generally faced the difficulty of kaolinite dispersion due to its high cohesion For improved dispersion of kaolinite within a given matrix previous intercalation of small polar molecules is usually done
The path of DMSO intercalation depends on the clay ordering as revealed by the number of layers per crystallite which remains constant from the raw to the intercalated form The Hinckley index of crystallinity coupled with the intercalation ratio shows that the higher the crystallinity the higher the DMSO intercalation
·Through the temperature‐dependent configurational entropic effect on coordination between iodoplumbate and dimethylsulfoxide DMSO a DMSO de‐intercalation processing method is developed This method enables the induction of uniaxially‐oriented α ‐FA MA PbI 3‐x Br x FA formamidnium MA methylammomnium x < perovskite
The surface area of kaolinite benzamide K Bz m2 g 1 which is noticeably lower than that of kaolinite dimethyl sulphoxide K DMSO m2 g 1 the co perturbation of the inner surface hydroxyl features at 3697 and 3650 cm 1 and the increase of d 001 value by Å are all related to the benzamide species inserted into the kaolinite structure through the replacement
·Numerous compounds such as formamide and its derivatives dimethyl sulphoxide DMSO urea and long chain alkylamines among others have been shown to intercalate clays For clays HM is probably the most common intercalant; its intercalation results in the increase of kaolinite s lattice parameter LP from to Å
Furthermore the intercalation of DMSO increased the number of negative charges on the surface of kaolinite resulting in the formation of a continuous spatial electrostatic field area around the kaolinite particles which played a role in cation selectivity The ionic transference number of the quasi solid state electrolyte reached
·a Possible structures of PbI2 L x L DMSO DMF supposing maximum complexation with solvent ligand molecules L b Thermodynamic explanation of de‐intercalation of DMSO from iodoplumbate
·Here we report on a simple and low cost electrochemical intercalation process of MoS 2 crystals via DMSO solvated lithium ion where lithium chloride LiCl is used as source of lithium ions The use of DMSO leads to the formation of Li DMSO adducts that can penetrate in between MoS 2 layers increasing the interlayer distance Its effect is proven by the large
·The cation insertion solid state electrochemistry of a potassium copper II hexacyanoferrate in contact with LiClO 4 /DMSO NaPF 6 /DMSO and KPF 6 /DMSO electrolytes has been theoretically and experimentally studied using the voltammetry of immobilized particles methodology Voltammetric data combined with SEM/EDS analysis permit to determine a K
·Increased quadrupolar constants were observed and showed the major perturbations of the local Al symmetry that resulted from DMSO intercalation Both the 1 H and 27 Al MAS NMR studies at different magnetic fields afforded important information about the local environments of the kaolinite hydroxyl groups and structural Al III
·Dimethylsulphoxide DMSO kaolinite interlayer complexes are important precursors for the organo modifications of kaolinite DMSO intercalation into HCl activated HK and untreated UnK Egyptian kaolinites via four different techniques; reflux of DMSO/water mixture at 70 °C R1 ball milling with DMSO followed by reflux at 140 °C R2 as well as
