Speaker
Description
Seawater electrolysis stands as a promising technology for sustainable hydrogen production and desalination. It consists of two processes, Oxygen Evolution Reaction (OER) and Hydrogen Evolution Reaction (HER). A bifunctional catalyst plays the crucial role of performing both these reactions simultaneously thus reducing the cost of this technology. This study focuses on the synthesis and evaluation of a bifunctional catalyst, NiFe/NiMo. Due to the good HER and OER activity of this catalyst, the AEM electrolyzer exhibited a good performance for water electrolysis, achieving a current density of 1000 mA $cm^{-2}$ at 1.87 V. Further experiments under quasi-industrial conditions (6 M KOH & seawater, 60 °C) showed that a three electrode electrolyzer delivered a current density 1000 mA $cm^{-2}$ at a low voltage of 1.63 V. Stability testing of the electrolyzer showed that it exhibited good durability for over 100h. This work presents a general and economic approach towards the development of a bifunctional catalyst for water electrolysis.
| Academic year | 3rd year |
|---|---|
| Research Advisor | Dr. Zhifeng Ren |
