نتایج جستجو برای: aqueous chemical synthesis
تعداد نتایج: 832311 فیلتر نتایج به سال:
Hatim Alnoor, Chan Oeurn Chey, Galia Pozina, Xianjie Liu, Volodymyr Khranovskyy, Magnus Willander and Omer Nour, Effect of precursor solutions stirring on deep level defects concentration and spatial distribution in low temperature aqueous chemical synthesis of zinc oxide nanorods, 2015, AIP Advances, (5), 8. http://dx.doi.org/10.1063/1.4929981 Copyright: American Institute of Physics (AIP): Op...
Recently, the synthesis of silver nanoparticles has become an important subject in the bionanotechnology field. Many different chemical and physical methods could be used for silver nanoparticles synthesis, but they are limited due to the usage of toxic chemicals and the production of dangerous by-products. However, the usage of plant extract for silver nanoparticles synthesis is a green single...
Chemical kinetics, also known as reaction kinetics, is the study of chemical processes’ rates. Chemical kinetics includes investigations into how different experimental conditions can influence the speed of a chemical reaction, and yield information about the reaction's mechanism and transitional states, as well as the construction of mathematical models that can describe the characteristics of...
a set of multicomponent perovskite oxide nanoparticles based on la1-xsrxco1-yfeyo3-δ(lscf) were prepared by a simple chemical precipitation method for application in low temperature solid oxide fuel cells (lt-sofc) as cathode materials. the precursor materials used in this synthesis were lanthanum nitrate hexahydrate [la(no3)3.6h2o], strontium nitrate [sr(no3)2], cobalt nitrate hexahydrate [co...
cobalt ferrite (cofe2o4) nanorods were synthesized by iron chloride (fecl3.6h2o) and cobalt sulfate hexahydrate (coso4.7h2o) as precursor in the presence of ethylene glycol agent and poly vinyl pyrrolidone (pvp) surfactant. the samples were characterized to identify the physical properties. xrd pattern of cobalt ferrite samples showed the structure of body center cubic (bcc) structure. the diam...
در این تحقیق روش میکرواستخراج مستقیم فاز جامد از محلول آبی نمونه (di-spme) برای تعیین مقادیر بسیار کم یدوکینول در نمونه های شیمیایی و حقیقی مورد بررسی و ارزیابی قرار گرفت. این ترکیب در آزمایشگاه به عنوان لیگاند و در پزشکی به عنوان داروی ضد عفونی کننده روده استفاده می شود. به همین منظور تلاش شد یک فیبر جاذب مناسب که توانایی استخراج یدوکینول را داشته باشد در آزمایشگاه ساخته شود. به دلیل امکان ساخ...
Fingerprint identification or dactyloscopy is a method for human identification. The impressions left by a human finger on surfaces are not visible to naked eyes (latent fingerprint); therefore, they require revelation to become visible and identified. Within the last century, several fingerprint revelation techniques such as optical, physical, and chemical were studied. These traditional metho...
Nanostructured films and coatings with controlled surface area, porosity, crystalline orientation, grain sizes, and crystal morphologies are desirable for many applications, including microelectronic devices, chemical and biological sensing and diagnosis, energy conversion and storage (photovoltaic cells, batteries and capacitors, and hydrogen-storage devices), lightemitting displays, catalysis...
Abstract Green synthesized nanomaterials have garnered much attention due to their economic and ecofriendly benefits over common chemical methods of synthesis. In the present study, zinc oxide nanoparticles with an average diameter of 16.51 nm were successfully biosynthesized using the aqueous extract of the red seaweed Hypnea musciformis. The morphology, purity and quality of biosynthesiz...
The electrochemical and chemical modification of carbon by reduction of diazonium salts attracted a lot of interest in the past decade. The major disadvantage of the modification approach based on aryl diazonium salt is that the synthesis of the salt is required. Indeed, the synthesis and isolation of the diazonium salt are not always straightforward. The synthesis is commonly carried out in ac...
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