Understanding the role of co-surfactants in microemulsions on the growth of copper oxalate using SAXS

Sunaina, .; Sethi, Vaishali; Mehta, S.K.; Ganguli, Ashok K.; Vaidya, Sonalika

doi:10.1039/c8cp05622f

Cited by 21 publications

(33 citation statements)

References 41 publications

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“…Naming a few of the extensively studied polymeric micelles interaction with various additives are the cationic cetyltrimethylammonium bromide, the anionic sodium dodecyl sulphate and Pluronic micelles. The additives added can either be the oppositely charged cosurfactants [19] , [20] , hydrophobic counterions [21] or specific targeting ligand molecules [22] . The introduction of the additives results in the dehydration of micelle core as well as the reduction of micelle heads repulsion, thus increasing their stability and promoting growth [23] .…”

Section: Introductionmentioning

confidence: 99%

The effect of sonication on the ion exchange constant, KXBr of CTABr/chlorobenz

Yusof

2021

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

The effect of sonication on the ion exchange constant, KXBr of CTABr/chlorobenz

Yusof

2021

Ultrasonics Sonochemistry

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“…The effect of the length of cosurfactant chain length on the growth kinetics (shape and size) of the MEDs formed as well as the shape and size of copper oxalate (CuO x ) nanostructures was investigated using SAXS. 100 Two cosurfactants, 1-butanol (4 C) and 1-octanol (8 C), were used in the CTAB/co-surfactant/isooctane/water MED system. It may be mentioned here that the use of 1-butanol yields CuO x nanorods, while 1-octanol yields CuO x nanocubes.…”

Section: Case Studiesmentioning

confidence: 99%

Mechanistic Investigations of Growth of Anisotropic Nanostructures in Reverse Micelles

et al. 2021

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Tailoring the characteristics of anisotropic nanostructures like size, morphology, aspect ratio, and size dispersity is of extreme importance due to the unique and tunable properties including catalytic, optical, photocatalytic, magnetic, photochemical, electrochemical, photoelectrochemical, and several other physical properties. The reverse microemulsion (RM) method offers a useful soft-template and low-temperature procedure that, by variation of experimental conditions and nature of reagents, has proved to be extremely versatile in synthesis of nanostructures with tailored properties. Although many reports of synthesis of nanostructures by the RM method exist in the literature, most of the research studies carried out still follow the "hit and trial" method where the synthesis conditions, reagents, and other factors are varied and the resulting characteristics of the obtained nanostructures are justified on the basis of existing physical chemistry principles. Mechanistic investigations are scarce to generate a set of empirical rules that would aid in preplanning the RM-based synthesis of nanostructures with desired characteristics as well as make the process viable on an industrial scale. A consolidation of such research data available in the literature is essential for providing future directions in the field. In this perspective, we analyze the literature reports that have investigated the mechanistic aspects of growth of anisotropic nanostructures using the RM method and distil the essence of the present understanding at the nanoscale timescale using techniques like FCS and ultrafast spectroscopy in addition to routine techniques like DLS, fluorescence, TEM, etc.

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“…Apart from the determination of the shape and size of nanoparticles, SAXS is also used for determining the relative position of the particles. [ 7,8 ] Using this technique, it is possible to study the growth of particles [ 9 ] and structure evaluation such as assembly or orientation of particles with time. [ 10 ] With SAXS, in situ studies can be carried out to understand the growth and nucleation process of the particles during reaction.…”

Section: Introductionmentioning

confidence: 99%

“…[ 10 ] With SAXS, in situ studies can be carried out to understand the growth and nucleation process of the particles during reaction. [ 9a ] SAXS has several advantages over the Electron microscopy. Extensive sample preparation is required for electron microscopy.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Role of Model‐Independent and Model‐Dependent Approaches for Determining Size and Shape of Au Nanostructures Using SAXS

Vijay¹,

Kaur²,

Vaidya³

2022

Part & Part Syst Charact

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The main objective of this study is to showcase the use of synergistic utilization of model‐independent and model‐dependent approaches for analyzing small angle X‐ray scattering (SAXS) data to determine the shape and size of different nanostructures viz. spherical, nanorod, and core‐shell. Herein, different gold nanostructures viz. spherical, nanorod, and core‐shell are synthesized and analyzed using SAXS. First, the SAXS data are analyzed using Guinier law, PDDF (pair–distance distribution function) plots, double logarithmic plots, and electron density curves to get primary information about the size and shape of nanostructures. This information is utilized for choosing an appropriate model and initial input parameters for fitting the SAXS data. The observations obtained from SAXS studies are compared with transmission electron microscopy and UV–vis spectroscopy. It is believed that this study will help in understanding the analysis of SAXS data using a systematic and synergistic approach of utilizing the two methods. It is believed that the study will further add to the understanding of the technique as an alternative approach for transmission electron microscopy.

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Understanding the role of co-surfactants in microemulsions on the growth of copper oxalate using SAXS

Abstract: SAXS study for evaluating the effect of variation of co-surfactants on the shape of reverse micelles and growth of copper oxalate nanostructures.

Cited by 21 publications

References 41 publications

The effect of sonication on the ion exchange constant, KXBr of CTABr/chlorobenz

The effect of sonication on the ion exchange constant, KXBr of CTABr/chlorobenz

Mechanistic Investigations of Growth of Anisotropic Nanostructures in Reverse Micelles

Synergistic Role of Model‐Independent and Model‐Dependent Approaches for Determining Size and Shape of Au Nanostructures Using SAXS

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