Fe3O4 octahedral colloidal crystals

Meng, L-r; Chen, Weimeng; Tan, Yiwei; Zou, Lin; Chen, Chinping; Zhang, Heping; Peng, Qing; Li, Yadong

doi:10.1007/s12274-010-0091-8

Cited by 38 publications

(23 citation statements)

References 29 publications

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“…SAXS is used for the determination of microscale as well as nanoscale structure of the nanocomposites in terms of parameters such as averaged particle sizes, shapes, distribution, surface fractal, and surface-to-volume ratio (Meng et al, 2011). I versus q plots obtained by SAXS measurements of pure PVDF and its composite with Fe 3 O 4 (MNP) are shown in Figure 11.7.…”

Section: Saxs Analysismentioning

confidence: 99%

Process–structure–property relationships in nanocomposites based on piezoelectric-polymer matrix and magnetic nanoparticles

Bajpai

Panja

Chattopadhyay

et al. 2015

Manufacturing of Nanocomposites With Engineering Plastics

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Section: Saxs Analysismentioning

confidence: 99%

Process–structure–property relationships in nanocomposites based on piezoelectric-polymer matrix and magnetic nanoparticles

Bajpai

Panja

Chattopadhyay

et al. 2015

Manufacturing of Nanocomposites With Engineering Plastics

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“…8 Today, few examples of colloidal crystals have been reported in the literature. The magnetic ones are minority, 4,[17][18][19][20][21][22][23] and their magnetic properties have never been studied. In recent years several theories were developed to describe the interaction and geometry of nanoparticle assemblies.…”

Section: Introductionmentioning

confidence: 99%

Enhanced structural and magnetic properties of fcc colloidal crystals of cobalt nanoparticles

et al. 2020

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“…has been reported. [10][11][12][13][14][15][16][17][18][19][20] Particularly, PbS-organic nanoparticles of different shapes (including cubes, octahedra, truncated octahedra, rhombicuboctahedra, etc.) can be easily synthesized on a large scale, and attracted much attention [15,16,21,22] because of a variety of possible applications.…”

mentioning

confidence: 99%

PbS–Organic Mesocrystals: The Relationship between Nanocrystal Orientation and Superlattice Array

et al. 2012

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The ability to prepare nanostructured and/or nanocomposite materials on a large scale by simple and controllable routes still remains a challenge in chemistry and material science. By employing well-established synthetic strategies, nanoparticles with different sizes, shapes and compositions can be readily produced. The high tendency for self-aggregation and selforganization of these nanosized building blocks, which are surface-stabilized by organic molecules, into superstructures has been used to create 2D and 3D assemblies. [1][2][3][4][5][6][7][8][9] In the last decade, a series of 3D colloidal superlattices composed of different nanoparticles (Ag, Au, PbS, PbSe, CeO 2 , FePt, CoPt 3 , Fe 3 O 4 , PbSe/Au, Fe 2 O 3 /PbSe, PbSe/Pd, CdSe/PbSe, etc.) has been reported. [10][11][12][13][14][15][16][17][18][19][20] Particularly, PbS-organic nanoparticles of different shapes (including cubes, octahedra, truncated octahedra, rhombicuboctahedra, etc.) can be easily synthesized on a large scale, and attracted much attention [15,16,21,22] because of a variety of possible applications. [23][24][25][26][27] Therefore, this kind of system provides a chance to study diverse packing arrangements (e.g., fcc, bcc, etc.) and specific orientational ordering of nanoparticles. [11,13,15,16,28,29] Experimental observations [16,[29][30][31][32][33][34] suggest that nanoparticles within a colloidal crystal tend to arrange in such a way that the optimal packing efficiency is achieved (principle of maximum space filling [35] ). In a relatively common case of truncated octahedrally shaped nanoparticles, the available experimental data [4,5,16,[29][30][31][32][33]36] allow to rationalize the formation of a particular type of the superlattice array (depending on the degree of coverage of nanocrystals by organic molecules) by considering four phenomenological models: A) Rigid, anisotropically shaped space-filling nanoparticles (inorganic part) without or with a tiny shell of organic molecules; B) Hard spheres with a comparatively large anisotropic core (inorganic part) covered by a relatively thin shell of organic molecules; C) Hard spheres with a comparatively small anisotropic core (inorganic part) and a thick shell of organic molecules; D) Soft and easily deformable spheres with a small anisotropic core (inorganic part) and an even thicker shell of organic molecules.For each case (A-D) the type of superlattice packing (translational order [37] ) and orientational ordering of nanoparticles within the superlattice array is significantly different. In the simplest case (A), the more or less pure, inorganic, truncated octahedrally shaped nanoparticles assemble into a bcc superlattice [33] with 100 % packing efficiency and strong orientational relationship (crystallographic directions of nanocrystals are coaxial with those of the superlattice). [35,37] In case of models B and C, by increasing the degree of coverage of anisotropic (inorganic) nanoparticles by organic molecules, their faces are continuously smoothed, thereby introducing a certa...

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Fe3O4 octahedral colloidal crystals

Cited by 38 publications

References 29 publications

Process–structure–property relationships in nanocomposites based on piezoelectric-polymer matrix and magnetic nanoparticles

Process–structure–property relationships in nanocomposites based on piezoelectric-polymer matrix and magnetic nanoparticles

Enhanced structural and magnetic properties of fcc colloidal crystals of cobalt nanoparticles

PbS–Organic Mesocrystals: The Relationship between Nanocrystal Orientation and Superlattice Array

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