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  1. طراحی یک پردازنده پرسرعت برای آزمون تجهیزات شبکه
بررسی اثر تقویت کننده های منتخب نانوساختار بر فعالیت الکتروکاتالیستی در فرایند شکافت آب
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بررسی اثر تقویت کننده های منتخب نانوساختار بر فعالیت الکتروکاتالیستی در فرایند شکافت آب

بهمنی، علیرضا Alireza Bahmani

Effect of Selected Nano-Structure Promoters on Electrocatalytic Performance in Water Splitting Reactions

Alireza Bahmani | 2024

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57140 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Khorashe, Farhad; Ghotbi, Cyrus; Asgharinejad, Ali Akbar; Larimi, Afsaneh Sadat
  7. Abstract:
  8. Increasing demand for finding eco-friendly and everlasting energy sources is now totally depending on fuel cell technology. Though it is an eco-friendly way of producing energy for the urgent requirements, it needs to be improved to make it cheaper and more eco-friendly. Although there are several types of fuel cells, the hydrogen (H2) and oxygen (O2) fuel cell is the one with zero carbon emission and water as the only byproduct. Achievement to affordable and efficient energy sources is possible by design and construction of suitable nanocatalysts. In this regard, a metal-organic framework containing cobalt, nickel, copper, and 5,3,1-benzenetricarboxylic acid was synthesized through phosphidation operations to obtain CoNiCu phosphide. A new composite based on this metal-organic framework was prepared. To find the optimal composite based on the metal-organic framework for achieving maximum activity in OER (Oxygen Evolution Reaction) and HER (Hydrogen Evolution Reaction), the structure and morphology of the synthesized compounds were identified using XRD, FE-SEM, and FT-IR methods. Among these synthesized compounds, the CoNiCu P nano-composite exhibited the highest electrocatalytic activity. Additional potentials of 228 and 219 millivolts at a current density of 10 mAcm^(-2) and Tafel slopes of 71 and 91 mVdec^(-1) were measured for OER and HER reactions, respectively. These values are comparable to some of the best electrocatalysts reported to date. Furthermore, the electrochemical active area and electrochemical properties of the synthesized catalysts were investigated using cyclic voltammetry and impedance spectroscopy techniques
  9. Keywords:
  10. Electrocatalysts ; Metal-Organic Framework ; Hydrogen Evolution Reaction ; Oxygen Evolution Reaction (OER) ; Water Splitting ; Metal Derivatives Based On Metal-Organic Frameworks

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