Loading...

Synthesis and Performance Evaluation of FeOOH Elechtrocatalyst Supported on Nickel Foam for Oxygen Evolution Reaction

Nick Maleki, Ali | 2018

582 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51481 (04)
  4. University: Sharif University of Technology
  5. Department: Physics
  6. Advisor(s): Moshfegh, Alireza; Naseri, Naimeh
  7. Abstract:
  8. Due to imminent shortage of fossil fuels, environmental issues that occur from their intensive use, population growth and industrialization of societies moving towards renewable energy sources is inevitable. Sun is the most clean and abundant source of energy but it is needed to be accompanied with an energy storage system as it is intermittent and cannot supply our required energies on demand. Water splitting electrochemical cells are promising solutions to cope with this problem by producing hydrogen as a clean fuel. The overpotential imposed by anode is the bottleneck of the water splitting reaction. The anodes with sufficient efficiency that are used today are made from precious and scarce metals. In this study we could synthesise a cheap electrode from earth-abundant materials that can compete with precious metal electrodes in terms of electrochemical activity. During hours of amperochronometry analysis electrodes just showed a negligible increase in the anodic current, representing a good electrochemical anode stability. We used two facile and inexpensive methods, hydrothermal and electrodeposition, to grow FeOOH nanoflakes directly on the nickel foam substrate. Results showed superiority of the hydrothermal method, by which we could decrease the overpotential of the nickel foam from to mV vs. RHE. This place our electrode among the best non-precious electrocatalysts ever made
  9. Keywords:
  10. Water Splitting ; Electrocatalysts ; Oxygen Evoloution Reaction (OER) ; Nickel Foam ; Ferrous Oxy Hydroxide Catalyst

 Digital Object List

 Bookmark

No TOC