9 Questions
What is the purpose of using bifunctional catalysts in water splitting?
To simplify electrode architecture and reduce costs
Which medium improves OER kinetics?
Acidic medium
True or false:The OER process is faster than the HER process.
False
Why is a decoupled water electrolysis model used?
To separate OER and HER compartments with redox mediator
What is the purpose of using bifunctional catalysts in water splitting?
To simplify electrode architecture
True or false: Bifunctional catalysts cannot catalyze both OER and HER at neutral pH.
False
Why is the deployment of bifunctional catalysts significant in water splitting?
It reduces the cost of the process
True or false: Assembling separate compartments for redox reactions can simplify the electrode architecture.
False
What is the role of redox mediator in water splitting?
To oxidize itself in solution instead of typical OER process
Study Notes
- Basic and acidic mediums improve OER and HER kinetics respectively
- Bifunctional catalysts are desired to simplify electrode architecture and reduce costs
- OER process is kinetically slow compared to HER
- Decoupled water electrolysis model separates OER and HER compartments with redox mediator (RDM)
- RDM prevents mixing of H2/O2 and partially prevents formation of oxygen species
- RDM oxidizes itself in solution instead of typical OER process
- Bifunctional catalysts can catalyze both OER and HER at neutral pH
- OER process cannot meet the number of electrons needed for reduction of protons on counter electrode
- Deployment of bifunctional catalysts can significantly reduce cost of water splitting process
- Electrode setup becomes more complex while assembling separate compartments for redox reactions.
Are you familiar with the latest advancements in water splitting technology? Test your knowledge with this quiz on the use of basic and acidic mediums to improve OER and HER kinetics, the benefits of bifunctional catalysts, and the decoupled water electrolysis model. Learn about the importance of redox mediators in preventing mixing of H2/O2 and partially preventing formation of oxygen species. Discover how bifunctional catalysts can significantly reduce the cost of the water splitting process and why the electrode setup
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