علی خانلرخانی
مرکز تحقیقات مواد و انرژی ، گروه فناوری نانو و مواد پیشرفته ، کرج ، ایران.
[ 1 ] - ایجاد میدان نیروی پتانسیل بهینه شده برای شبیه‌سازی مایع (OPLS) ترکیب شیمیایی خردل گوگردی به منظور بررسی جذب بر روی گرافن
در این مطالعه، مدل OPLS تمام اتمی برای عامل شیمیایی خردل گوگردی به منظور بررسی جذب این ترکیب بر روی نانوساختار گرافن ارایه شده است. پارامترهای پیوندی درون ملکولی و هم‌چنین پارامترهای غیرپیوندی لنارد - جونز تک‌تک اتم‌های خردل، از منابع OPLS موجود استخراج شد. بارهای جزیی با استفاده از محاسبات کوانتومی آغازین به روش HF/6-31g(d) به‌دست آمد. نتایج حاصل نشان داد میدان نیروی OPLS خواص فیزیکی خردل مانن...
[ 2 ] - Pseudomorphic Reaction: A New Approach to Produce Bulk Mesoporous Silica as Catalyst Support in Methane Reforming
Pseudomorphism is known as a suitable technique for producing mesoscale pore in silica powders keeping their original morphologies. Herein, silica discs with several millimeter dimensions have been prepared using the same method. This method has been utilized through application of pseudomorphism reaction of preshaped bodies by immersion in a solution containing surfactant and swelling re...
[ 3 ] - Nanowires fine tunable fabrication by varying the concentration ratios, the etchant and the plating spices in metal-assisted chemical etching of silicon wafer.
The metal-assisted chemical etching (MACE) was used to synthesis silicon nanowires. The effect of etchant concentration, etching and chemical plating time and doping density on silicon nanowires length were investigated. It is held that the increasing of HF and H2O2 concentrations lead to etching rate increment and formation of wire-like structure. The results show that, the appropriate ratio o...
[ 4 ] - Investigation of Macroporous Calcium Phosphate Cement Obtained by Foamed Gelatin Polymer
This study deals with the effect of gelatin on physical and mechanical properties of calcium phosphate bone cements. The mixture of tetracalcium phosphate (TTCP) and dicalcium phosphate (DCPA) as the cement powder was mixed with 6 wt% Na2HPO4 solution containing different amount (0, 2, 5 and 8% in w/w) of foamed gelatin as liquid phase. The physical properties were determined in the terms of s...
[ 5 ] - Partial acetylene hydrogenation over commercial Pd-Ag/α-Al2O3 catalyst promoted by ionic liquid
1-butyl-3-methyl imidazolinium hydroxide ionic liquid (BMIm[OH]) is loaded on commercial low surface area Pd-Ag/α-Al2O3 solid catalyst to enhance higher selectivity of acetylene partial hydrogenation. Different experimental techniques such as atomic absorption spectroscopy, surface area measurement and gas chromatography have been utilized to characterize chemical, structural and catalytic pro...
[ 6 ] - Sol-Gel Synthesis, in vitro Behavior, and Human Bone Marrow-Derived Mesenchymal Stem Cell Differentiation and Proliferation of Bioactive Glass 58S
Background: Bioactive glasses 58S, are silicate-based materials containing calcium and phosphate, which dissolved in body fluid and bond to the bone tissue. This type of bioactive glass is highly biocompatible and has a wide range of clinical applications. Methods: The 58S glass powders were synthesized via sol-gel methods, using tetraethyl orthosilicate, triethyl phosphate, and calcium nitrate...