Surface and Interface Engineering: Molybdenum Carbide-Based Nanomaterials for Electrochemical Energy Conversion

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Molybdenum carbide (Mo_x C)-based nanomaterials possess unique physicochemical properties beneficial for energy conversion.
• High surface area and optimized surface atomic configuration are crucial for Mo_x C's electrochemical potential.
• Existing Mo_x C catalysts face challenges including low electronic conductivity, catalytic efficiency, and structural instability.

Purpose of the Study:

• To review recent advancements in surface and interface engineering of Mo_x C-based electrocatalysts.
• To highlight strategies for enhancing Mo_x C nanomaterials for various energy conversion applications.
• To discuss the future outlook and challenges for Mo_x C in catalysis.

Main Methods:

• Summarizing progress in surface and interface engineering techniques for Mo_x C nanomaterials.
• Detailing methods to increase active sites, such as reducing particle size and creating porous/hierarchical structures.
• Describing surface modification strategies including heteroatom doping, defect engineering, and incorporation of conductive materials.

Main Results:

• Surface and interface engineering strategies effectively enhance the performance of Mo_x C electrocatalysts.
• Methods like particle size reduction and structural design increase active sites.
• Surface modifications improve electronic conductivity, catalytic efficiency, and stability.

Conclusions:

• Surface and interface engineering are critical for optimizing Mo_x C nanomaterials for energy conversion.
• Addressing issues like conductivity and stability through engineering unlocks the full potential of Mo_x C.
• Further research into key performance parameters will drive future developments in Mo_x C-based catalysts.