Recent Progress on Layered Double Hydroxides and Their Derivatives for Electrocatalytic Water Splitting

Area of Science:

• Materials Science
• Electrochemistry
• Catalysis

Background:

• Layered double hydroxides (LDHs) possess unique structures beneficial for electrocatalysis.
• Their properties, including surface area and electron distribution, contribute to catalytic activity.
• Tunability through composition, morphology, and ion exchange allows for performance optimization.

Purpose of the Study:

• To summarize recent advancements in LDH-based materials for water splitting electrocatalysis.
• To propose design strategies for improving LDH electrocatalyst performance.
• To discuss current challenges and future perspectives in the field.

Main Methods:

• Review of recent literature on LDH materials for water splitting.
• Analysis of strategies for enhancing electrocatalytic activity, including conductivity improvement and defect engineering.
• Discussion of material design principles for optimizing LDH derivatives.

Main Results:

• LDHs exhibit good electrocatalytic performance due to their structure and tunable properties.
• Poor conductivity and large particle size limit LDH performance.
• Strategies like combining with conductive materials, introducing defects, and tuning electronic structure enhance activity.

Conclusions:

• LDH derivatives are effective electrocatalysts for water splitting.
• Further research is needed to overcome limitations and fully exploit LDH potential.
• Optimized design of LDHs offers a promising avenue for efficient water splitting technologies.