نتایج جستجو برای: cerium oxide nanocrystals
تعداد نتایج: 188099 فیلتر نتایج به سال:
Complexation affinity of laurate ligands (C(12)H(23)O(2)) grafted onto the surface of cerium(IV) oxide nanoparticles can be probed and quantified in situ, by pulsed field gradient (1)H NMR through the dependence of the diffusion coefficient on the size of a species.
Cytocompatible, co-doped cerium oxide nanoparticles exhibited strong upconversion properties that were found to kill lung cancer cells by inducing apoptosis thereby demonstrating the potential to be used as clinical contrast agents for imaging and as therapeutic agents for treatment of cancer.
Molecular mechanisms and precursor conversion pathways associated with the reactions that generate colloidal nanocrystals are crucial for the development of rational synthetic protocols. In this study, Fourier transform infrared spectroscopy technique was employed to explore the molecular mechanism associated with the formation of tin-doped indium oxide (ITO) nanocrystals. We found that the rea...
Titanium dioxide nanoparticles (TiO2) are known as a widely used photocatalyst. In order to improve the performance of these nanoparticles, the recombination of the electron-cavity pair must be reduced and the absorption rate of the visible region should be expanded. One way to increase the performance of these nanoparticles is using cerium doped TiO2. In the present study, pure and doped titan...
Decomposition of CO-=SUB=-2-=/SUB=- in a barrier discharge in the presence of cerium oxide catalysts
A number of catalysts based on cerium oxide have been synthesized to study the process plasma-catalytic decomposition CO 2 in a barrier discharge. For first time, an catalyst MgCe-Al has compared with samples containing composition only or magnesium oxide. It established that, presence sample, highest degree and energy efficiency get achieved. Keywords: discharge, oxide, low temperature plasma,...
MOF derived CeO2 showed a pseudocapacitance of 1204 F g(-1) at 0.2 A g(-1), far exceeding its theoretical capacitance (560 F g(-1)). The present study demonstrates that combination of a two-way strategy, controlled nano-architecture and redox active electrolyte additive, could potentially alleviate both low energy density and capacitance fading issues plaguing the current metal oxide pseudocapa...
CdS nanocrystals were synthesized in 1-octadecene (ODE) solution with oleic acid (OA) as a capping agent. Freshly prepared CdS nanocrystals showed a weak orangelike fluorescence due to defects on the particle surface. After several weeks' storage, the bulk fluorescence of CdS nanocrystals was dramatically enhanced, which gave the nanocrystals a blue or violet appearance. UV and photoluminescenc...
Magnetic nanocrystals have been investigated extensively in the past several years for several potential applications, such as information technology, MRI contrast agents, and for drug conjugation and delivery. A specific property of interest in biomedicine is magnetic hyperthermia-an increase in temperature resulting from the thermal energy released by magnetic nanocrystals in an external alte...
Cerium nanopowders doped by a small amount of silver exhibit interesting catalytic properties towards the low temperature oxidation of CO. It is generally believed that a metal support interaction plays an important role in a catalytic process. Therefore in our study we examined electronic and adsorption properties of cerium deposited onto a polycrystalline silver substrate. Layers of approxima...
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