Here we report on the synthesis of freestanding Ge nanoparticles (NPs) down to approximately 7 nm using ball milling technique and study its structural evolution as a function of milling time. Morphology and microstructure of the freestanding Ge NPs are studied using atomic force microscopy, transmission electron microscopy and X-ray ...

The use of ball milling as a defibrillation method after a series of pre-treatments of raw materials was also described by the group of Elkoun, who reported the extraction of CNFs and CNCs from carrot pulp by ball …

 — A CIGS layer was formed from the binary-alloy nanoparticles of In 2 Se 3, Ga 2 Se 3, and CuSe in a non-vacuum environment and without selenization. The precursor nanoparticle-ink was fabricated by a ball milling technique, and the size of the agglomerated CIGS powder after milling was less than 100 nm. Therefore, the proposed sintering …

 — A two-stage method for fabricating CZTS films using CZTS nanoparticles was developed. Nanocrystal inks fabricated by a ball-milling method was utilized to °C deposit CZTS precursors by spin-coating approach. The CZTS precursors were annealed in the sulfur atmosphere under different annealing temperatures ranging from 550 °C to …

For all nanocrystalline materials prepared by high-energy ball milling synthesis route, surface and interface contamination is a major concern. In particular, mechanical attributed contamination by the milling tools (Fe …

 — From Fig. 12 found that ZnO nanoparticles from Ball-milling process was more effective in inhibiting bacteria than conventional ZnO because of the smaller particle size. Download: Download high-res image (296KB) Download: Download full-size image; Fig. 12. Size of clear zone formed by ZnO nanoparticles by Ball-milling process E.coli (b) S.aureus.

 — The Fe3O4 nanoparticles not only help to boost the conductivity of Si but also accommodate their volume expansion during cycling. Consequently, the Si@Fe3O4@C anode delivers a reversible capacity of 1009 mA h g−1 at 200 mA g−1 after 110 cycles and 780.8 mA h g−1 at 1 A g−1 after 500 cycles. ... The ball milling was …

 — A novel large-scale fabrication technology for single-walled boron nitride nanotube (BNNT) relying on a template of single-walled carbon nanotube (SWCNTs) was introduced. In order to obtain large-scale product, the high-energy ball milling-aided heating technology was used to promote the formation of BNNTs. And arc-discharge methods …

The ball mill Ball milling is a mechanical technique widely used to grind powders into ne particles and blend materials.18 Being an environmentally-friendly, cost-effective …

 — Synthesis of Co 9 S 8 /C nanocomposite. The Co 9 S 8 /C nanoparticles were prepared by a solid-state reaction and then followed by a ball-milling treatment. An appropriate ratios of dried Co 2 O 3 (4.4676 g), S (6 g) powders (Co:S = 1:3.5 in mol, sulfur excess), and sucrose (5.2338 g, 50% wt of the total mass of Co 2 O 3 and S) as carbon …

 — TiO 2 nanoparticles (Aeroxide TiO 2 P25) and fine iron powder (purity ≥97 %, particle size of about 40 μm) were obtained from Quimidroga (Spain) and from Sigma-Aldrich ® (Portugal), respectively, and used as the starting materials.. Preparation of samples. Iron-doped TiO 2 nanoparticles were prepared by ball milling of TiO 2 powders …

 — Ball milling experiments were done in a high energy planetary ball mill at a rotating speed of 300 rpm. To avoid the occurrence of any undesirable polluted phases, the ball-milling experiments were halted periodically (every 1.8 ks) and then restarted when the temperature of the vial reached about 300 K.

Ball milling is a mechanical technique that is broadly used to grind powders into fine particles [134–141]. The reactants are generally broken apart using solvent molecules in …

Ball-milling synthesis of Co 2 P nanoparticles encapsulated in nitrogen doped hollow carbon rods as efficient electrocatalysts ... (Co 2 P/N-HCRs) by ball-milling following simple heat treatment. In particular, the Co/C content has an extremely important influence on the formation of Co 2 P/N-HCRs with tubular structures.

 — In this paper, nano-silicon particles were prepared by pulse discharge and ball milling. Firstly, the bulk silicon material was gasified and melted at high temperature in the process of pulse discharge, and then the micro nanoparticles with small grain sizes, a high degree of disorder in crystal orientation and a certain amorphous structure were …

 — Nanocrystalline TiO 2-CeO 2 powders were synthesized from their TiO 2 and CeO 2 oxides using mechanical ball milling process. The response surface method is applied to identify optimal parameters for the synthesis of TiO 2-CeO 2 photocatalyst. Analysis of variance and main effect plot are used to determine the significant …

 — One of the great challenges in the use of nanomaterials is their production at low costs and high yields. In this work aluminum nanoparticles, from aluminum powder, were produced by wet mechanical milling through a combination of different attrition milling conditions such as ball-powder ratio (BPR) and the amount of solvent used. It was …

 — In a previous work [15], we reported an efficient route to obtain magnetite-maghemite nanoparticles by the high-energy ball milling method, starting from sub-micrometric hematite mixed with deionized water and using some particular milling conditions. In that work, we obtained full conversion hematite to nano-spinel in a time of …

The proposed synthesis route by ball milling and annealing is an effective process for carbon nanoparticle production and efficient nitrogen doping, providing a large-scale production method for the development of highly efficient and practical electrocatalysts.

 — This review is focused on the topical developments in the synthesis of nanocomposites using the simplest top-down approach, mechanochemical milling, and …

The novel vibratory ball mill concept for nanoparticle production This article discusses the concept of forced vibration in the design of vibratory ball mill machine. The eccentric system produces the translational motion of steel balls and powder tubes. The presence of the SDOF spring-mass system increases the eccentric force.

 — Alshora et al. prepared pioglitazone HCl (PGZ) nanoparticles via planetary ball milling [65]. They used the Box-Behnken factorial design approach to optimize the number of milling cycles, and the amount of stearic and electrostatic stabilizers. The optimized PGZ nanoparticle formulation enabled the dissolution to reach 100 % in 5 mins.

 — The adsorption capacity of methylene blue could be further enhanced to 500.5 mg g −1 using a magnetic ball-milled biochar, which was synthesized by solvent …

 — Nanoparticles of Fe, Co, FeCo, SmCo, and NdFeB systems with sizes smaller than 30 nm and narrow size distribution have been successfully prepared by ball milling in the presence of surfactants and organic carrier liquid. It has been observed that the nanoparticles prepared by milling Fe and FeCo powders were close to spherical in …

 — Ball milling experiments were done in a high energy planetary ball mill at a rotating speed of 300 rpm. To avoid the occurrence of any undesirable polluted phases, the ball-milling experiments were …

 — The aim of this paper is to use a high-energy ball mill to convert micro-sized Au powder into nano-structured Au powder; it means Au (Gold) NanoParticles (AuNPs) have been fabricated in this present work. The ball milling process took a …

 — Ball milling experiments were done in a high energy planetary ball mill at a rotating speed of 300 rpm. To avoid the occurrence of any undesirable polluted phases, the ball-milling experiments were halted periodically (every 1.8 ks) and then restarted when the temperature of the vial reached about 300 K.

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 — The synthesis of silica nanoparticles using the mechanical milling method was observed by Wahyudi et al. [Citation 30]. High-grade results were achieved by using the planetary ball mill for 30 hours with …

The high-resolution SEM images show the different morphologies of four samples. Starting commercial graphite (Fig. 1a, C 1) had a flake-like shape.Annealing treatment did not change this morphology, as shown in Fig. 1c, C 3.However, ball milling treatment has changed the morphology substantially of C 1.There is no typical flake-like structure in …