Surface Passivation of Bare Boron Nanoparticles Using New Dicyanamide-Based Dicationic Ionic Liquid

Fareghi‐Alamdari, Reza; Ghorbanizamani, Faezeh; Shekarriz, Marzieh

doi:10.1021/acs.energyfuels.5b01556

Cited by 18 publications

(12 citation statements)

References 41 publications

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“…In continues of our previous works on synthesis and study of properties of mono and dicationic ILs, we now report here the synthesis, characterization and thermophysical properties of a novel di‐azide functionalized mono cationic IL with DCA anion. Because of prominent properties of r‐GO and DND such as low cost, easy synthesis, high specific surface area, and chemical and thermal stability, these particles were employed to improve thermophysical properties of di‐azide functionalized mono cationic IL.…”

Section: Introductionmentioning

confidence: 99%

Detonation Nanodiamond as a New Option for Reduction of the Viscosity of one Novel Di–azide Functionalized Monocationic Ionic Liquid

Alamdari

Hatefipour

2016

ChemistrySelect

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A novel di‐azide functionalized monocationic ionic liquid (IL) based on the dicyanamide anion were synthesized and characterized. Reduced graphene oxide (r‐GO) and detonation nanodiamond (DND) were synthesized according Hummer′s method and explosion of the mixture of 60 wt% TNT (2,4,6‐trinitrotoluene) and 40 wt% RDX (1,3,5‐trinitroperhydro‐1,3,5‐triazine) respectively. Dispersions of DND, r‐GO and graphite (Gr) powder in the synthesized IL were successfully achieved with sonication at 80 °C. The viscosity as well as thermal behavior of these dispersions was investigated and compared with neat IL. The experimental results showed that particles, especially DND, added to the synthesized IL exhibit good viscosity‐reduction. So that, concentration of 0.08 % (w/w) of DND decreases the viscosity up to 63.33 cP at 25 °C, as compared to neat IL. The addition of DND with 0.08 % w/w to other ILs showed that this nanoparticle leads to decrease of the viscosity of these Ils. In addition, all of the particles caused to increase the thermal decomposition temperature of synthesized IL and there is no noticeable difference between them. In fact, this work offers DND as a new option for reduction of viscosity of ILs.

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Section: Introductionmentioning

confidence: 99%

Detonation Nanodiamond as a New Option for Reduction of the Viscosity of one Novel Di–azide Functionalized Monocationic Ionic Liquid

Alamdari

Hatefipour

2016

ChemistrySelect

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“…Using these ILs in the field of high energy materials is considerable. Recently, we have reported the synthesis of new energetic imidazolium ILs as hypergolic fuels [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of New Imidazolium Ionic Liquid Based Energetic Plasticizers

Miri

Fareghi‐Alamdari

Nikpour

et al. 2021

Propellants Explo Pyrotec

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In the present research, two new ionic liquids (ILs) with imidazolium cation and dicyanamide anion were synthesized for their plasticizing capacity in solid propellants. The structure of plasticizers was confirmed by FT-IR, 13 C-NMR and 1 H-NMR spectrum and their thermal behaviors were studied by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results of the thermal analysis showed that the thermal stabilities of these ILs are suitable and the phase change curves of ILs were consistent with their weight reduction changes by increasing temperature. Moreover, the low viscosities and high densities obtained from the ILs show that these compounds could be convenient alternatives for polymeric plasticizers in propellant compositions. To understand the plasticizing effect of synthesized IL plasticizers on glycidyl azide polymer (GAP), blends of 20 % of the synthesized IL plasticizers were prepared and analysed to determine glass transition temperature and viscosity. Among all plasticizers, [Vin-IL] [N(CN) 2 ]-GAP and [Me-IL][N(CN) 2 ]-GAP blends produced the lowest Tg. The results of viscosity analysis show that all synthesized IL plasticizers have reduced the viscosity of the GAP binder, which indicates the plasticizing properties of ILs.

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“…With regard to this point and in continuation of our interest in the synthesis, characterization and application of ionic liquids [30][31][32][33][34][35], our research objective in this paper is to study which of the calculated molecular descriptors has the most influence on the Id times of hypergolic imidazolium ionic liquid derivatives.…”

Section: Introductionmentioning

confidence: 99%

Reliable Evaluation of Ignition Delay Time of Imidazolium Ionic Liquids as Green Hypergolic Propellants by a Novel Theoretical Approach

Fareghi‐Alamdari

Zohari

Sheibani

2019

Propellants Explo Pyrotec

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A novel quantitative structure‐property relationship (QSPR) modelling method developed for predicting the ignition delay time of 31 hypergolic imidazolium ionic liquid derivatives which is WFNA (white fuming nitric acid) used as their oxidizer. Chemical structures of these ILs were encoded into several sets of molecular descriptors, representing various physical and chemical properties of these molecules. A total number of 1447 molecular descriptor with different types (e.g., constitutional, functional group counts, and geometrical descriptors) were selected and calculated, then the combination of stepwise and best subset regression approaches was used to determine the molecular descriptors which have significant effects on ignition delay time of hypergolic imidazolium ionic liquid derivatives, finally the response plot of PLS regression approach applied to the selected descriptors, to choose the best number of them. The final derived model displayed a good predictive ability arising from the determination coefficient corresponding to the leave one out cross validation technique (R2=0.9925 and QLOO2 =0.9834). The predictive power of the proposed method is evaluated using several different techniques and this method can be used as a reliable tool for designing novel hypergolic ILs.

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Surface Passivation of Bare Boron Nanoparticles Using New Dicyanamide-Based Dicationic Ionic Liquid

Cited by 18 publications

References 41 publications

Detonation Nanodiamond as a New Option for Reduction of the Viscosity of one Novel Di–azide Functionalized Monocationic Ionic Liquid

Detonation Nanodiamond as a New Option for Reduction of the Viscosity of one Novel Di–azide Functionalized Monocationic Ionic Liquid

Synthesis and Characterization of New Imidazolium Ionic Liquid Based Energetic Plasticizers

Reliable Evaluation of Ignition Delay Time of Imidazolium Ionic Liquids as Green Hypergolic Propellants by a Novel Theoretical Approach

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