Mechanochemical-assisted synthesis and characterization of Al2O3/B4C ceramics

TiO2 Nanotubes Decorated with CdSe Quantum Dots: A Bifunctional Electrochemiluminescent Platform for Chiral Discrimination and Chiral Sensing

“…For the NH 2 -TiNTs, the main diffraction peaks at 2θ = 24.2, 28.4, and 48.3°correspond to the anatase TiO 2 phase. 29 All the diffraction peaks of CdSe QDs and TiO 2 can be observed in the CdSe QDs/TiNTs, further confirming the successful combination of MPA-CdSe QDs and NH 2 -TiNTs.…”

“…First, TiNTs were synthesized by the hydrothermal method described previously. 29,30 Briefly, 250 mg of TiO 2 nanopowder (10−25 nm) was dispersed in 40 mL of a 10 M NaOH solution with continuous stirring, and then, the dispersion was transferred into a Teflon-lined stainless steel autoclave and maintained at 130 °C for 24 h. The precipitates were collected by filtration, washed with water and 0.1 M HCl alternatively, and vacuum-dried at 60 °C. To improve the crystallization of TiNTs, the products were calcined at 400 °C for 3 h.…”

Mechanochemical synthesis of nanostructured and composite oxide ceramics: From mechanisms to tailored properties

“…After ball milling for 3 h at room temperature, 3 M hydrochloric acid was added to remove unwanted impurities (Fe) to better form α-Al 2 O 3 and B 4 C phases. 29 Scanning electron microscopy (SEM) of the Al 2 O 3 -B 4 C composite powder obtained after grinding for 8 h showed cracks and crack formation on the surface of the particles. Powder formation similar to nanometer-sized single-particle structures is also observed, which provides the driving force for the sintering process.…”

“…24 Mechanochemical methods counter this by allowing for controlled grinding parameters, reducing agglomeration and producing more uniformly sized particles. 29,30 This leads to the synthesis of nanocrystalline powders with lower levels of agglomeration. 31,32 Finally, traditional methods often require complex equipment and strict control conditions, driving up costs.…”

“…Moreover, traditional liquid and gas‐phase methods often result in severe particle agglomeration due to the absence of a solid physical barrier during particle growth, affecting productivity 24 . Mechanochemical methods counter this by allowing for controlled grinding parameters, reducing agglomeration and producing more uniformly sized particles 29,30 . This leads to the synthesis of nanocrystalline powders with lower levels of agglomeration 31,32 .…”