Research progress of bipolar membrane interfacial layer catalysts: classification and performance optimization...

Area of Science:

• Electrochemistry
• Materials Science
• Clean Energy Technologies

Background:

• Bipolar membranes (BPMs) are crucial for clean energy technologies due to their water dissociation and acid-base compartmentalization capabilities.
• The interfacial layer within BPMs, containing catalysts, is key to voltage efficiency and stability in applications like fuel cells and water electrolysis.
• Catalyst performance directly dictates the overall efficiency and longevity of BPMs.

Purpose of the Study:

• To review research progress on BPM interfacial water dissociation catalysts over the past decade.
• To elucidate mechanistic models and analyze factors influencing catalyst activity and stability.
• To provide guidance for developing high-performance BPMs.

Main Methods:

• Comprehensive review of literature on BPM interfacial water dissociation catalysts.
• Analysis of mechanistic models of water dissociation in BPMs.
• Classification and analysis of inorganic, organic, and composite catalyst materials.
• Categorization of catalyst optimization strategies (material modulation, structural design, interface engineering).

Main Results:

• Summarized state-of-the-art inorganic, organic, and composite catalyst materials for BPMs.
• Detailed common catalyst optimization strategies, including intrinsic material modulation, structural design, and interface engineering.
• Identified key factors affecting catalyst activity and stability.

Conclusions:

• Significant progress has been made in BPM interfacial water dissociation catalysts over the last decade.
• Material innovation, structural design, and interface engineering are critical for enhancing BPM performance.
• Further research is needed to address remaining challenges and unlock the full potential of BPMs in clean energy.