Nickel-Based (Photo)Electrocatalysts for Hydrogen Production

Area of Science:

• Materials Science
• Electrochemistry
• Renewable Energy

Background:

• Hydrogen is a key sustainable energy carrier, with water splitting as a primary production method.
• Noble metal catalysts are effective but costly for hydrogen production.
• Nickel-based materials offer a promising, cost-effective alternative for catalysis.

Purpose of the Study:

• To review the current research on nickel-based materials for hydrogen production.
• To cover their roles as electrocatalysts, cocatalysts, and photoactive materials.
• To discuss optimization strategies and remaining challenges.

Main Methods:

• Literature review of recent research on Ni-based (photo)electrocatalysts.
• Analysis of applications in hydrogen production and underlying mechanisms.
• Summary of material improvement approaches.

Main Results:

• Nickel-based materials show significant potential as efficient, low-cost catalysts for hydrogen generation.
• Various Ni-based materials have been developed and applied in electrochemical and photocatalytic water splitting.
• Optimization strategies focus on enhancing catalytic activity and stability.

Conclusions:

• Nickel-based materials are a viable and sustainable alternative to noble metals for hydrogen production.
• Further research is needed to overcome challenges and fully realize their potential.
• Continued development of Ni-based catalysts is crucial for advancing green hydrogen technology.