fa رشد میکرومتری نانوصفحه‌های شش‌ضلعی هسته مشترک پنتاکسید وانادیم به‌عنوان ماده فعال الکترود کاتد باتری یون لیتیم الکترونیک Electronic پژوهشي Research <div dir="ltr">DOR:&nbsp;<span style="color: rgb(255, 255, 255); font-family: yekan; font-size: 16px; text-align: center; background-color: rgb(75, 72, 70);">98.1000/1735-7152.1398.16.25.0.2.1585.1605</span></div> <br> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">سنتز</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانوساختار</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">پنتاکسید</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">وانادیم</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">با</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">استفاده</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">از</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">روش</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">رفلاکس</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">و</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">بدون</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">استفاده</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">از</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مواد</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">افزودنی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مانند</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">واکنش‌دهنده‌های سطحی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">ارائه</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">می‌شود. </span></span></span>&nbsp;<span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">رشد</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانوساختارها</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">در</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">شرایط</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">واکنش</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مختلف</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مانند</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">دما و</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">غلظت‌های</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مختلف</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مورد</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">بررسی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">قرارگرفته‌است. مورفولوژی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانوساختارها،</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانوصفحه‌های</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">شش‌ضلعی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">میکرومتری</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">است</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">که</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">از</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">هسته‌ای</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مشترک</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">رشد می‌کنند. </span></span></span>&nbsp;<span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">قطر</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">شش‌ضلعی‌ها</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">در</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">حدود</span></span></span><strong><span style="font-family:symbol;"><span style="font-size:10.0pt;">m</span></span><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">m </span></span></strong><span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">5</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">و</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">ضخامت</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانوصفحه‌ها</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">کمتر</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">از</span></span></span><strong><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">nm </span></span></strong><span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">250</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">است. </span></span></span>&nbsp;<span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نتایج</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">پراش</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">اشعه</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">ایکس بیانگر</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">این</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">است</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">که</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">در</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">مرحله</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">رفلاکس</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانو</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">ذرات</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">وانادات</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">آمونیوم</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">هیدراته</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">تشکیل</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">می‌شود. میکرو&shy;ساختار</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">پنتاکسید</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">وانادیم</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">از</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">کلسینه‌کردن</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">وانادات</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">آمونیوم</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">هیدراته</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">در</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">دمای</span></span></span><strong><span style="font-family:symbol;"><span style="font-size:10.0pt;">&deg;</span></span><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">C </span></span></strong><span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">400</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">به‌دست</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">می‌آید. </span></span></span>&nbsp;<span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">این</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نانوساختار</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">به‌عنوان</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">ماده&shy;ی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">فعال</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">الکترود</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">کاتد در</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">باتری</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">نیم</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">سل</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">یون</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">لیتیم</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">با</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">یک</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">پیک</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">آندی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">و</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">کاتدی</span></span></span> <span dir="RTL"><span style="font-family:b nazanin;"><span style="font-size:11.0pt;">ازنظر الکتروشیمیایی فعال است و واکنش برگشت&shy;پذیر انجام می&shy;دهد</span></span></span><strong><span style="font-family:times new roman,serif;"><span style="font-size:10.0pt;">.</span></span></strong> This manuscript reports the synthesis of V₂O₅ nanostructures using reflux method, without using additives such as surface reactants. The influence of reaction parameters like temperature and concentration on the growth of nanostructures have been investigated. It has been observed that the nanostructures are formed with a hexagonal nano-plate morphology, grown from a common core. The diameter of hexagonal nanostructures is around 5 um, and the thickness of nano-plates is less than 250 nm. XRD analysis shows the formation of ammonium vanadates in the reflux step. Calcinating these hydrated ammonium vanadates in 400^oC results in formation of microstructures of V₂O₅. This structures are electrochemically active as the cathode material of Lithium ion battery, with an anodic and a cathodic peak, and can perform reversible reaction. نانوصفحه شش‌ضلعی, پنتاکسید وانادیم, الکترود کاتد, باتری یون لیتیم, رفتار الکتروشیمیایی Hexagonal nano-plate, V2O5, Cathode, Lithium ion battery, Electrochemical performance 25 30 http://jiaeee.com/browse.php?a_code=A-10-31-1&slc_lang=fa&sid=1 Zahra Farrokhi زهرا فرخی z.farrokhi@aut.ac.ir 10031947532846004597 10031947532846004597 Yes Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran. دانشکده مهندسی برق و کامپیوتر- دانشگاه تهران- تهران- ایران Hassan Ghafoori-Fard حسن غفوری فرد ghafourifard@aut.ac.ir 10031947532846004598 10031947532846004598 No Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran. دانشکده مهندسی برق و کامپیوتر- دانشگاه تهران- تهران- ایران Zeinab Sanaee زینب سنایی z.sanaee@ut.ac.ir 10031947532846004599 10031947532846004599 No Nano-fabricated Energy Devices Laboratory, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran. دانشکده مهندسی برق و کامپیوتر- دانشگاه تهران- تهران- ایران Hossein Ghaffarian حسین غفاریان chem.ghafarian@gmail.com 10031947532846004600 10031947532846004600 No Department of Chemistry, Amirkabir University of Technology, Tehran, Iran. دانشکده شیمی- دانشگاه صنعتی امیرکبیر- تهران- ایران