نوع مقاله : مقاله کامل پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اراک، اراک، مرکزی، ایران

2 استاد، گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اراک، اراک، مرکزی، ایران

3 دانشیار، گروه مهندسی مواد و متالورژی، دانشکده فنی و مهندسی، دانشگاه ملایر، ملایر، همدان، ایران

10.30501/jamt.2022.338552.1222

چکیده

در این تحقیق، پوشش‌دهی نانوذرات هگزاسیانوفرات نیکل (NiHCF) روی بستر توری فولاد زنگ‌نزن (SSM) به روش رسوب‌نشانی شیمیایی و به‌منظور افزایش کارایی ابرخازن الکتروشیمیایی بررسی شد. الکترود ساخته ‌شده با استفاده از روش‌های پراش پرتو ایکس (XRD) و میکروسکوپ الکترونی روبشی نشر میدانی (FE-SEM) شناسایی شد و وجود نانوذرات هگزاسیانوفرات نیکل روی بستر موردنظر تأیید شد. نتایج نشان داد که عملکرد الکترود ابرخازنی بهبود یافته است. افزایش کارایی الکتروشیمیایی الکترود هگزاسیانوفرات نیکل بدون نیاز به اتصال‌دهنده (چسب) انجام شد و کارایی آن به‌منزله الکترود ابرخازنی در محلول 5/0 مولار سولفات سدیم با استفاده از آزمون‌های ولتامتری چرخه‌ای و شارژ/دشارژ جریان ثابت بررسی شد. نتایج به‌دست‌آمده نشان داد که ظرفیت ویژه بالای 7/465 فاراد بر گرم در نرخ تخلیه 1 آمپر بر گرم و توان جریان‌دهی مناسب است، و با توجه به ظرفیت و ساختار مناسب، می‌توان از این ماده فعال در کاربردهای عملی ابرخازن‌ها استفاده کرد.
 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Chemical Deposition of Nickel Hexacyanoferrate Nanoparticles on a Stainless-Steel Mesh Substrate for Supercapacitor Application

نویسندگان [English]

  • Farnoush Farahani 1
  • Alireza Fazlali 2
  • Mehdi Kazazi 3

1 M. Sc. Student., Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Markazi, Iran

2 Professor, Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Markazi, Iran

3 Associate Professor, Department of Material Engineering, Faculty of Engineering, Malayer University, Malayer, Hamedan, Iran

چکیده [English]

Energy storage is one of the most important issues in the scientific community. Among the other significant concerns in this field are the economic and environmental issues. Chemical deposition has attracted the attention of a number of researchers owing to its advantages such as its binder-free, fast, and simple electrode, compared to the electrochemical synthesis, as well as its one-step production and coating. In this research, a coating of Nickel hexacyanoferrate nanoparticles (NiHCF) was deposited on a Stainless-Steel Mesh (SSM) substrate through the chemical deposition method. The electrode was analyzed through X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FE-SEM) methods based on which, the presence of nickel hexacyanoferrate nanoparticles on the substrate was confirmed. The electrochemical performance of the binder-free NiHCF electrode as the supercapacitor electrode in a solution containing 0.5 M sodium Sulfate (NaOH) aqueous electrolyte (vs. Ag/AgCl) electrode was evaluated using the cyclic voltammetry and galvanostatic charge/discharge tests. According to the findings, the mentioned electrodes were characterized by a high specific capacitance of 465.7 F g-1 and current density of 1 A g-1, an appropriate rate capability and structure. The current research primarily aimed to obtain an electrode with high specific capacity and acceptable stability, and the obtained results highlighted its wide applications as the supercapacitor.

کلیدواژه‌ها [English]

  • Supercapacitors
  • Chemical Deposition
  • Nickel Hexacyanoferrate
  • Electrochemical Performance
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