Ideal interaction-free magnetite nanoparticles were prepared, and their magnetic properties measured to clarify the true nature of anisotropy individual at nanoscale analyze shape, surface, crystalline contributions. Spherical (17.7 nm), cubic (10.6 octahedral-shaped with average sizes ranging from 7.6 23.4 nm synthesized using solution techniques. Then, these coated silica appropriate shell thicknesses prepare samples, noninteractive was confirmed through first-order reversal curve...

Magnetic iron oxide mesocrystals have been reported to exhibit collective magnetic properties and consequently enhanced heating capabilities under alternating fields. However, there is no universal mechanism fully explain the formation pathway that determines particle diameter, crystal size, shape of these their evolution along with reaction. In this work, we analyzed cubic by thermal decomposition in organic media. We observed a nonclassical leads via attachment crystallographically aligned...

A hydroxyl ion assisted alcohol reduction method has been applied for the preparation of copper nanoparticles with an average diameter 10.5 nm and narrow size distribution. The addition specific amounts ions to alcoholic solution is key enhance reducing potential alcohols obtain metal from their salts even 1-butanol. synthesis was realized through intermediate steps corresponding formation oxides (CuO Cu2O). obtained were coated necessary surfactants dispersed in organic solvent such as...

The monoanionic state of ethylene glycol was theoretically and experimentally confirmed to be the active species during reduction reaction metal salts.

A new redox reaction mechanism in the formation of Co metal particles using an ethylene glycol–cobalt system is proposed NMR, ESI-MS, FT-IR and XRD as analytical tools.

Low temperature diffusion of Pt atoms from the core to corners and edges Ni cube results in preparation potential novel cage-structured catalysts.

Development of a technology for the synthesis monometallic or multimetallic nanoparticles is exceptionally vital preparation novel magnetic, optical. and catalytic functional materials. In this context, polyol process safe scalable method metal with controlled sizes shapes in large scales. However, there no systematic investigation that discusses criteria selection salt solvent type determine kinetics reduction reaction influences morphology particles. Consequently, design metallic...

The synthesis of novel cubic shaped-standing Ni–Pt alloy nanoparticles is reported. Incorporation a few percent Pt atoms in the presence chloride ions and oleylamine, which helps to control growth prevents agglomeration, facilitates formation highly monodispersed shaped particles. Furthermore, these cubic-shaped particles stand on their corners, believed be due magnetic interaction between whose easy axis [111] direction. unique with different sizes has been realized by using platinum as...

Cu nanowire (NW) is a promising cost-benefit conducting material that could be considered for the development of transparent films (TCF). However, NW as an alternating Ag or Au not only limited by its stability in atmospheric conditions nanometer range but also due to nonavailability simple synthetic route produce them high yields and large-scale. Here, scheme synthesize NWs reducing nitrate Cl − ion-polyvinylpyrrolidine- (PVP-) ethylene glycol (EG) system proposed. with average diameter...

Size-controlled nickel nanocrystals have been successfully synthesized using 2-octanol as the reducing agent. The elucidation of reduction mechanism ions by was monitored UV-vis spectrometry, FT-IR X-ray diffractometry and transmission electron microscopy formation intermediate layered hydroxides that subsequently undergoes to metallic identified. Although, particles obtained in 2-octanol–Ni acetate system were irregularly shaped with size sub-micrometer range, addition surfactants, hydroxyl...

Multifunctional nanoparticles (NPs) exhibiting high magnetic property and plasmonic resonance are expected to be advanced nanomaterials which enable therapy, detection, diagnosis simultaneously for medical applications. To achieve the practical performance of multifunctional NPs, precise design synthesis both required. In this work, considering chemical stability controllability, Co–Pt@Au core–shell exhibit resonance, were theoretically designed based on calculation then experimentally...

Co-Ni alloy nanoparticles, a potential candidate for microwave absorption material, were successfully synthesized by tuning the reduction timing of Co and Ni ions introducing oleylamine as complexing agent 1-heptanol reducing solvent. The formation mechanism elucidated using time-resolved sampling in situ X-ray spectroscopy (XAS) ultraviolet-visible (UV-vis) spectrophotometry measurements suggested that delay via complexation with facilitated co-reduction led to alloys. successful synthesis...

Bimetallic nanomaterials have attracted much attention from various fields such as catalysis, optics, magnetism, and so forth. The functionality of particles is influenced very by the intermetallic interactions than their individual contribution. However, compared with synthesis monometallic nanoparticles, reaction parameters that need to be controlled for tuning size, shape, composition, crystal structure bimetallic nanoparticles becomes challenging. This study focuses on synthesizing...

Development of a novel alcohol reduction technique for the one-pot synthesis Cu–Ni NWs by elucidating formation mechanism using <italic>in situ</italic> spectroscopic measurements.

Recently, the development of bimetallic nanoparticles with functional properties has been attempted extensively but limited control over their morphological and structural properties. The reason was inability to kinetics reduction reaction in most liquid-phase syntheses. However, alcohol technique demonstrated possibility controlling facilitating incorporation other phenomena such as diffusion, etching, galvanic replacement during nanostructure synthesis. In this study, potential...

Large quantities of water-based ITO nanoparticles with a size 5 nm were prepared in 2-octanol–HCl/CH₃COOH system at atmospheric pressure.

Atomic arrangement in Cu-Pd alloy nanoparticles (NPs) has been reported to influence the catalytic activity, but they have yet be studied detail. Unlike previous studies, where B2 structure NPs are obtained by heat treating A1 structure, this study reports one-pot direct syntheses of A1- and B2-structured using an alcohol reduction method. The technique facilitates kinetic control reaction selecting appropriate type complexing agent delay easily reducible metallic elements realize over...

The successful synthesis of highly crystallized cuprous oxide nanoparticles using long chained alcohol reduction method is reported. purity copper obtained by this greatly depends on the conditions such as reaction temperature, duration, and hydroxyl ion concentration that assist kinetics. By optimizing above parameters, cubic with particle sizes controllable in range 10–30 nm were synthesized. x-ray diffraction analysis confirmed single-phased nature Cu2O crystal. Furthermore, ratio between...

Hierarchal structures in magnetic fluids have been studied to ensure the optimal utilization of these fluids, which exhibit both magnetism and fluidity, various engineering devices biomedical applications. In this study, were prepared by dispersing monodispersed magnetite particles with sizes 10.0, 11.7, 17.4 nm kerosene. Dark-field optical microscopy small-angle X-ray scattering (SAXS) experiments showed no results indicating destabilization colloidal dispersion absence fields. Under...

Abstract Two conventional methods for evaluating interparticle magnetic interactions are applied to nanoparticle assemblies with various distances that controlled by a silica coating. According Weiss temperatures derived from superparamagnetic response analysis, the mean values of relatively small and seem be independent distance. The interaction fields in first-order reversal curve diagram narrow widely distributed. However, disappear when distance is sufficiently large. Analysis these two...

The catalytic performance and durability of Ni–Pt alloy nanoparticles synthesized using an alcohol reduction technique were enhanced by controlling the metallic Pt distribution.

Synthesis of NiPtPd nanostructures by the alcohol reduction method as electrodes for ORR through complexation Pt and Pd ions with surfactants is reported.

The alloy-composition-sensitive selectivity and activity of CO 2 RR have been demonstrated for Pd-Cu solid solution nanopaticles.