Chevrel phases: synthesis, structure, and electrocatalytic applications

Chevrel phases (CPs) with the chemical formula of MxMo6T8 (T = S, Se, and Te) have drawn great interest as noble-metal-free electrocatalysts in recent years owing to their unique open crystal structure and versatile functionalities. Herein, the representative efforts and progress made on CP electrocatalysts are overviewed, focussing on how the crystal structure and surface configurations affect the efficiency. In brief, the crystal structure of CPs is introduced first, and then the design and fabrication of CPs and their prominent catalytic performance are discussed in detail. Finally, the prospects of CPs in electrocatalysis are offered. It is anticipated that this review would aid in gaining in-depth insights into CPs and inspire the exploitation of more cost-efficient catalysts.

Automated summary

This review provides an overview of Chevrel phases (CPs) with the chemical formula of MxMo6T8 (T = S, Se, and Te) as noble-metal-free electrocatalysts. It focuses on the representative efforts made and progress achieved in exploring the crystal structure and surface configurations to enhance efficiency. The design, fabrication, and catalytic performance of CPs are discussed in detail, and the potential of CPs in electrocatalysis is highlighted. The review aims to deepen the understanding of CPs and inspire the development of more cost-efficient catalysts.