نتایج جستجو برای: chemical method

تعداد نتایج: 1959288  

Journal: :physical chemistry research 2015
parivash mashayekhishams alireza banaei

in this work, ag-cu nanoparticles (with different percentages of copper, 10%, 25%, 50%, 75% cu) were synthesized by wet chemical method. copper(ii) sulfate and silver nitrate were taken as metal precursors, ascorbic acid as reducing agent and anhydride maleic (ma) as a modifier. the prepared nanoparticles were characterized by means of x-ray diffraction (xrd) technique and scanning electron mic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان 1392

in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...

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

Journal: :Bulletin of the Chemical Society of Japan 1951

Journal: :Journal of the Surface Finishing Society of Japan 1989

Journal: :Journal of the Society of Materials Science, Japan 2020

A. Rahdar, M. Aliahmad Y. Azizi

The Cu doped NiO (NiO:Cu) nanoparticles were synthesized by co-precipitation method using NiCl2.6H2O, CuCl2.2H2O for Ni and Cu sources, respectively. Sodium hydroxide has been used as a precipitator agent. Effect of Cu doping agent on the structural and optical properties of nanostructures were characterized by XRD, SEM, AFM, spectrophotometry, FTIR a...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1958

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