نوع مقاله : مقاله کامل پژوهشی

نویسندگان

1 گروه زیست‌مواد، پژوهشکده فناوری نانو و مواد پیشرفته، پژوهشگاه مواد و انرژی، مشکین دشت، البرز، ایران

2 پژوهشگاه شیمی و مهندسی شیمی ایران، تهران، ایران

چکیده

خصوصیات منحصر به فرد نانوذرات منگنز اکسید شامل خواص کاتالیستی، مغناطیسی و شیمیایی، به شدت تحت تأثیر اندازه ذرات قرار می­ گیرد. در این پژوهش، از روش تجزیه حرارتی، برای تولید نانوذرات منگنز (II) اکسید، با توزیع اندازه ذرات یکنواخت، به عنوان روشی آسان، با تکرار پذیری و راندمان بالا، استفاده شد. با بررسی و کنترل شرایط واکنش که شامل پیش ماده، حلال، نوع سورفکتانت و نرخ افزایش دما است، روشی تکرار پذیر و قابل کنترل، برای سنتز نانوذرات منگنز (II) اکسید ارائه شد. از دو نوع پیش ماده منگنز (II) استیل استونات و منگنز (II) اولئات، استفاده شد. سنتز منگنز (II) اولئات، با استفاده از واکنش منگنز (II) کلرید با اولئیک اسید، انجام شد. نقش دی بنزیل تر و 1-اکتادسن نیز، به عنوان حلال واکنش، مورد مطالعه قرار گرفت. نتایج حاصل از الگوی پراش اشعه ایکس، تصویر برداری میکروسکوپ الکترونی روبشی گسیل میدانی و میکروسکوپ الکترونی عبوری، نشان دهنده سنتز موفق نانوذرات منگنز (II) اکسید با ابعاد حدود ده نانومتر بود. بر اساس آنالیزهای انجام شده، نانوذرات منگنز اکسید با عدد اکسایش دو سنتز ‌شدند و اثری از وجود منگنز با عدد اکسایش سه و دیگر حالت‌های اکسایش، مشاهده نشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Synthesis of Manganese Oxide Nanoparticles Using Thermal Decomposition Method

نویسندگان [English]

  • Mahdi Arian 1
  • Salman Taheri 2
  • Ali Zamanian 1
  • Akbar Esmaeilnejad 1

1 Biomaterials Research Group, Department of Nano-Technology and Advanced Materials, Materials and Energy Research Center, MeshkinDasht, Alborz, Iran

2 Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. Box: 14335-186, Tehran, Tehran, Iran

چکیده [English]

The unique properties of manganese oxide nanoparticles, including catalytic, magnetic, and chemical properties are strongly influenced by the particle size. In this research, the thermal decomposition method for the production of manganese (II) oxide nanoparticles with uniform particle size distribution, high reproducibility, simple method, and high efficiency has been used. The repeatable and controllable method for the synthesis of manganese (II) oxide nanoparticles is provided by checking and controlling the reaction conditions, including precursor, solvent, and type of surfactant, and rate of temperature rise. Also, two types of precursors including manganese (II) acetylacetonate and manganese (II) oleate have been used. Manganese (II) oleate synthesis was carried out using a reaction of manganese (II) chloride with oleic acid. The effect of dibenzyl ether and 1-octadecene has been studied as a reaction solvent. The results of the X-ray diffraction pattern, field emission scanning electron microscopic imaging, and transmission electron microscopy confirm that manganese (II) oxide nanoparticles have been successfully synthesized with a size of about 10 nm. According to the analysis, manganese oxide nanoparticles were synthesized with oxidation numbers (II) and no other oxidation number was observed.

کلیدواژه‌ها [English]

  • Nanoparticle synthesis
  • Thermal Decomposition Method
  • Manganese Oxide Nanoparticles
  • metal oxide nanoparticles
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