Nanocomposite Formation and Combustion Induced by Reaction Milling

1992 ◽  
Vol 286 ◽  
Author(s):  
Laszlo Takacs
Keyword(s):  
Metal Oxide ◽  
Ball Milling ◽  
Thermodynamic Parameters ◽  
Milling Process ◽  
Reactive Metal ◽  
Reaction Milling ◽  
Metal Metal ◽  
Displacement Reactions ◽  
The Way

ABSTRACTDisplacement reactions between a metal oxide and a more reactive metal can be induced by ball milling. In some cases the reaction progresses gradually and a metal/metal-oxide nanocomposite is formed. Ball milling may also initiate a self propagating combustive reaction. The information available about these processes is reviewed. It is argued that the gradual or combustive nature of the reaction depends on thermodynamic parameters, the microstructure of the reaction mixture, and the way they develop during the milling process.

scholarly journals The application prospect of metal/metal oxide nanoparticles in the treatment of osteoarthritis

2021 ◽  
Vol 394 (10) ◽  
pp. 1991-2002
Author(s):  
Junchao Luo ◽  
Yin Zhang ◽  
Senbo Zhu ◽  
Yu Tong ◽  
Lichen Ji ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Biological Response ◽  
Cell Uptake ◽  
Oxide Nanoparticles ◽  
Therapeutic Effects ◽  
Superoxide Anions ◽  
Metal Metal ◽  
Cartilage Wear

AbstractThe current understanding of osteoarthritis is developing from a mechanical disease caused by cartilage wear to a complex biological response involving inflammation, oxidative stress and other aspects. Nanoparticles are widely used in drug delivery due to its good stability in vivo and cell uptake efficiency. In addition to the above advantages, metal/metal oxide NPs, such as cerium oxide and manganese dioxide, can also simulate the activity of antioxidant enzymes and catalyze the degradation of superoxide anions and hydrogen peroxide. Degrading of metal/metal oxide nanoparticles releases metal ions, which may slow down the progression of osteoarthritis by inhibiting inflammation, promoting cartilage repair and inhibiting cartilage ossification. In present review, we focused on recent research works concerning osteoarthritis treating with metal/metal oxide nanoparticles, and introduced some potential nanoparticles that may have therapeutic effects.

The Impact of Ball Milling Process Parameters on the Preparation of Nano Silicon Powder

2021 ◽  
Vol 217 (1) ◽  
pp. 255-264
Author(s):  
Xiaomeng Zhu ◽  
Xiaolan Cai ◽  
Shuang Zhang ◽  
Lei Wang ◽  
Xudong Cui
Keyword(s):  
Ball Milling ◽  
Process Parameters ◽  
Silicon Powder ◽  
Milling Process ◽  
Ball Milling Process ◽  
Nano Silicon ◽  
The Impact

scholarly journals Photodoping of metal oxide nanocrystals for multi-charge accumulation and light-driven energy storage

Nanoscale ◽  
2021 ◽  
Author(s):  
Michele Ghini ◽  
Nicola Curreli ◽  
Andrea Camellini ◽  
Mengjiao Wang ◽  
Aswin Asaithambi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Metal Oxide ◽  
Direct Conversion ◽  
Charge Accumulation ◽  
Innovative Solutions ◽  
And Storage ◽  
The Way

Light-driven multi-charge accumulation (i.e., photodoping) of doped metal oxide nanocrystals opens the way to innovative solutions for the direct conversion and storage of the solar energy.

Reusability of metals/metal oxide coupled zinc oxide nanorods in degradation of rhodamine B dye

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anh Thi Le ◽  
Swee-Yong Pung
Keyword(s):  
Metal Oxide ◽  
Metal Ions ◽  
Rhodamine B ◽  
Zno Nanorods ◽  
Zinc Oxide Nanorods ◽  
Uv Exposure ◽  
Precipitation Method ◽  
Subsequent Stage ◽  
Content Type ◽  
Metal Metal

Purpose This paper aims to investigate the reusability of metal/metal oxide-coupled ZnO nanorods (ZnO NRs) to degrade rhodamine B (RhB). Design/methodology/approach ZnO NRs particles were synthesized by precipitation method and used to remove various types of metal ions such as Cu2+, Ag+, Mn2+, Ni2+, Pb2+, Cd2+ and Cr2+ ions under UV illumination. The metal/metal oxide-coupled ZnO NRs were characterized by scanning electron microscope, X-ray diffraction and UV-Vis diffuse reflectance. The photodegradation of RhB dye by these metal/metal oxide-coupled ZnO NRs under UV exposure was assessed. Findings The metal/metal oxide-coupled ZnO NRs were successfully reused to remove RhB dye in which more than >90% of RhB dye was degraded under UV exposure. Furthermore, the coupling of Ag, CuO, MnO2, Cd and Ni particles onto the surface of ZnO NRs even enhanced the degradation of dye. The dominant reactive species involved in the degradation of RhB dye were •OH- and •O2−-free radicals. Research limitations/implications The coupling of metal/metal oxide onto the surface of ZnO NRs after metal ions removal could affect the photocatalytic performance of ZnO NRs in the degradation of organic pollutants in subsequent stage. Practical implications A good reusability performance of metal/metal oxide-coupled ZnO NRs make ZnO NRs become a desirable photocatalyst material for the treatment of wastewater, which consists of both heavy metal ions and organic dyes. Originality/value Metal/metal oxide coupling onto the surface of ZnO NRs particles improved subsequent UV-assisted photocatalytic degradation of RhB dye.

Surface to bulk charge transfer at an alkali metal/metal oxide interface

2003 ◽  
Vol 547 (1-2) ◽  
pp. L859-L864 ◽  
Author(s):  
R Lindsay ◽  
E Michelangeli ◽  
B.G Daniels ◽  
M Polcik ◽  
A Verdini ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Alkali Metal ◽  
Metal Oxide ◽  
Oxide Interface ◽  
Metal Metal ◽  
Bulk Charge

Superthermostability of nanoscale TIC-reinforced copper alloys manufactured by a two-step ball-milling process

2015 ◽  
Vol 95 (35) ◽  
pp. 4035-4053 ◽  
Author(s):  
Fenglin Wang ◽  
Yunping Li ◽  
Xiandong Xu ◽  
Yuichiro Koizumi ◽  
Kenta Yamanaka ◽  
...  
Keyword(s):  
Ball Milling ◽  
Copper Alloys ◽  
Milling Process ◽  
Ball Milling Process

Molecular Assembly of Rubrene on a Metal/Metal Oxide Nanotemplate†

2007 ◽  
Vol 111 (49) ◽  
pp. 12674-12678 ◽  
Author(s):  
Fabio Cicoira ◽  
Jill A. Miwa ◽  
Dmitrii F. Perepichka ◽  
Federico Rosei
Keyword(s):  
Metal Oxide ◽  
Molecular Assembly ◽  
Metal Metal
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