نتایج جستجو برای: uniform nanoparticles

تعداد نتایج: 216803  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
nazila esmaeili hossein kazemian dariush bastani

lta zeolite nanoparticles was successfully synthesized from clear solution under controlled conditions using hydrothermal method using tetramethyl ammonium hydroxide as a structural directing agent. the as-synthesized lta zeolite particles were characterized by powder x-ray diffraction (xrd) analysis, scanning electron microscopy (sem), fourier transform infrared (ft-ir) spectroscopy, energy di...

Journal: :international journal of nano dimension 0
b. sathyaseelan department of physics, university college of engineering arni (a constituent college of anna university chennai) arni 632 317, tamilnadu, india. s. sambasivam department of physics, pukyong national university, busan-608 737, south korea. t. alagesan department of physics, presidency college, chennai 600 005, tamil nadu, india. k. sivakumar department of physics, anna university, chennai-600025, tamilnadu, india.

nanocrystalline particles of cerium oxide (ceo2) have been prepared by the chemical precipitation method using cerium nitrate and urea with a molar ratio of 1:2. the results revealed that the formation of ceo2 fine particles is influenced by molar ratio of metal nitrates to fuel. well faceted ceo2 nanoparticles, were synthesized by thermal-assisted dissociation method at reflux temperature in a...

Journal: :Applied sciences 2021

Heterogeneous Ag/Au nanoparticles combined with Pd ions were generated by irradiating metal targets in a solution nanosecond and femtosecond lasers. AgPd AuPd laser fragmentation bonded. We numerically analyzed the hot spots electromagnetic field enhancement of different sizes separated various distances. differing diameter showed characteristics compared to typical core-shell heterogeneous nan...

Journal: Journal of Nanoanalysis 2019
Alfred Khodaverdian, Elena Pakina Imbia Marie Wase Mohamad Heydari Niloufar Mahmoudi, Yousef Naserzadeh,

Green synthesis is a simple, low-cost, non-toxic, environmentally friendly and efficient approach touse. Leaf extract of plants rich in polyphenols, such as flavonoids, is a powerful agent in reducing thesynthesis of gold nanoparticles. The purpose of this study is to investigate the parameters affecting thebiosynthesis of gold nanoparticles using the aqueous extract of Scroph...

G.R. Kiani, G.R. Mahdavinia K. E. Geckeler L. Saghatforoush

Gold nanoparticles were synthesized by chemical reduction of HAuCl4 inside the pores of a polycarbonate-based membrane followed by dissolving the membrane in dichloromethane and further sonication. Sonication time as the main affecting factor on the nanoparticle size was investigated. The characterization by transmission electron microscopy showed the formation of gold nanoparticles with diamet...

Aliakbar Tarlani Fatemeh Darkhosh

Titanium oxide nanoparticles were synthesized via a solvothermal treatment of titanium isopropoxide in the presence of L-lysine (lysine). The prepared nanostructures characterized by atomic force microscopy (AFM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), diffraction scanning calorimetry (DSC), scanning electronic microscopy (SEM), transmission electron microscopy (TEM) and...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

Journal: :Nanotechnology 2009
Z L S Seow A S W Wong V Thavasi R Jose S Ramakrishna G W Ho

Several important synthetic parameters such as precursor concentration, rate of evaporation and reaction time are found to determine the growth of ZnO nanostructures. These reaction parameters can be tailored and tuned to produce a variety of nanostructures ranging from nanoparticles, nanorods and nanospheres. The nanorods are structurally uniform made up of crystallographically oriented attach...

Journal: :Progress in Natural Science: Materials International 2017

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