نتایج جستجو برای: mn3o4 nanoparticles

تعداد نتایج: 107310  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2000

Journal: :Jurnal Rekayasa Proses 2023

The processing of mining products in indonesia has not been utilized optimally. One them is manganese ore. Way kanan one indonesia's potential ore sites. leaching study used a -200 mesh way that was reacted with sulfuric acid at concentrations 0.1 M, 0.5 and 1 as well corncob reductant. To separate the dissolved iron process, sulfate solution purified sodium hydroxide then filtered to have free...

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

a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

here, we report analysis of in vitro and in vivo drug release from an in situ formulation consisting of triamcinolone acetonide (tr) and poly(d,l-lactide-co-glycolide) (plga) and the additives glycofurol and hydroxyapatite nanoparticles (ha). we found that these additives enhanced drug release rate. we used the taguchi method to predict optimum formulation variables to minimise the initial burs...

Journal: :physical chemistry and electrochemistry 0
mohammad bagher limooei department of materials science and engineering, ayatollah amoli branch ,islamic azad university, amol, iran. hadi ebrahimifar department of materials science and engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran. shabnam hosseini department of materials science and engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran.

long–term stability and oxidation resistance of aisi 439 ferritic stainless steel used as interconnects in solid oxide fuel cells can be improved by use of a protective coating. in this study the pack cementation method was employed to coat aisi 439 ferritic stainless steel with manganese. isothermal oxidation was conducted at 800 ºc for 200 hours in static air to investigate the role of coatin...

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