نتایج جستجو برای: metallic ions

تعداد نتایج: 173713  

2017
M. López Quintela J. Rivas I. Winter W. Knoche

Fine and ultrafine Nd-Fe-B particles have been obtained from metallic cation reduction by borohydride ions both in water and microemulsions. In this way amorphous particles of different sizes ranging from 4-50 nm to 100-400 nm can be obtained. In this work we will report on the kinetics of the growth of the particles studied by stopped-flow with UV-Vis detection. Quantum effects are suggested f...

2016
Na Liu Feifei Wang Lianqing Liu Haibo Yu Shaorong Xie Jun Wang Yuechao Wang Gwo-Bin Lee Wen J. Li

The synthesis and assembly of components are key steps in micro/nano device manufacturing. In this article, we report an optically controlled assembly method that can rapidly pattern micro/nano devices by directly assembling ions and nanomaterials without expensive physical masks and complex etching processes. Utilizing this controllable process, different types of device components (e.g., meta...

Journal: :Chemical Society reviews 2007
Adair D Richards Alison Rodger

This tutorial review summarises B-DNA structure and metallomolecule binding modes and illustrates some DNA structures induced by molecules containing metallic cations. The effects of aquated metal ions, cobalt amines, ruthenium octahedral metal complexes, metallohelicates and platinum complexes such as cis-platin are discussed alongside the techniques of NMR, X-ray crystallography, gel electrop...

Journal: :journal of ultrafine grained and nanostructured materials 0
mohsen hosseinzadeh advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. seyyed ali seyyed ebrahimi advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. shahram raygan advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. seyed morteza masoudpanah school of metallurgy & materials engineering, iran university of science and technology (iust), tehran, iran.

in this study, the removal of cadmium and lead ions from aqueous solution by nanocrystalline magnetite was investigated. the nanocrystalline magnetite was synthesized by mechanochemical activation of hematite in a high energy planetary mill in argon atmosphere for 45 hours. the ability of the synthesized nanocrystalline magnetite for removal of cd(ii) and pb(ii) from aqueous solutions was studi...

2010

This Module consists of three Web pages of required reading. The pagination is visible at the bottom of each page with direct links to adjacent pages. Introduction The driving force that causes metals to corrode is a natural consequence of their temporary existence in metallic form. To reach this metallic state from their occurrence in nature in the form of various chemical compounds (ores), it...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید