فهرس المقالات Reducing agent

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  1 - Investigation of Parameters Effect on the Size and Morphology of Copper Nanoparticles using Various Reducing Agents
  Maryam Mohammadpour Samad Sabbaghi Zahra Manafi
  10.22034/jna.2022.1940167.1273
  Copper nanoparticles are widely used in various industries and products. Size and morphology are two important parameters to determine nanoparticle properties. In this study, copper nanoparticles were synthesized without an inert environment using two different reducing أکثر

  Copper nanoparticles are widely used in various industries and products. Size and morphology are two important parameters to determine nanoparticle properties. In this study, copper nanoparticles were synthesized without an inert environment using two different reducing agents namely ascorbic acid and sodium hypophosphite. Various capping agents (PVP 105, PVP 4×104, PEG 6000, SDS, CTAB and glycerol) were used as stabilizers. Effect of several parameters including reducing agent concentration, type and amount of stabilizer and precursor concentration on the size and stability of the resulting nanoparticles have been investigated. The synthesis experiments resulted in a 25-60 nm average size of nanoparticles based on the synthesis conditions and the stabilizer type and concentration. Also this research provides a fast and simple way for the synthesis of stable pure colloidal copper nanoparticles in polyol, which is accomplished by decreasing CuSO4.5H2O using sodium hypophosphite in glycerol and without inert medium and homogeneous and non-agglomerated, 25 nm copper nanoparticles were obtained. The as synthesized copper nanoparticles are characterized using scanning and transmission electron microscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and dynamic light scattering techniques. تفاصيل المقالة
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  2 - Optimized and Scalable Methods for the Synthesis of Lauryl Amine Anti-Cake using Diborane
  mohammad javad taghizadeh MAHDI BAHARVAND
  In this research, four improved and scalable methods for the synthesis of lauryl amine have been described. In this research, attempt has been by investigated the synthesis methods of lauryl amine, made to provide an easy and cost-effective method for the synthesis of أکثر

  In this research, four improved and scalable methods for the synthesis of lauryl amine have been described. In this research, attempt has been by investigated the synthesis methods of lauryl amine, made to provide an easy and cost-effective method for the synthesis of lauryl amine as a surfactant and anti-cake with a wide range of applications. lauryl amine was synthesized from the primary materials of lauric acid, lauramide and lauronitrile in the presence of various catalysts and reducing agents. The advantages and disadvantages of each of these methods were investigated and compared to industrial methods. In the reduction of luramide and Lauronitrile to lauryl amine, diborane reductant was used as a new method for the first time. In this article, with an efficient and new method, lauryl amine was synthesized in the presence of ammonia and aluminum oxide with a overall yield of 63% from lauric acid. In this method, lauric acid is converted to Lauramide and finally reduced to lauryl amine. تفاصيل المقالة