Recent Advances in Engineered MoS<sub>2</sub>-Based Nanomaterials for CO<sub>2</sub> Electro-Reduction to CO and Beyond
Anirban Mukherjee, Niwesh Ojha, Kamal Kishore Pant, Aniruddha Deb, Maryam Abdinejad, Susanta Sinha Mahapatra, Bidhan Chandra Ruidas
Abstract
The conversion of carbon dioxide (CO 2 ) into value-added compounds is an emerging climate-change mitigation technique. Among various approaches, electrochemical CO 2 reduction (ECO 2 R) driven by renewable energy sources is considered one of the most viable methods for CO 2 reduction. Thus, developing efficient, cost-effective electrocatalysts that enhance reaction kinetics is vital for advancing ECO 2 R and enabling large-scale implementation. During the past few years, among the several transition metal dichalcogenides, molybdenum disulfide (MoS 2 ) has attracted much interest in the field of electrocatalysis owing to its two-dimensional (2D) structure and high density of active sites, which could lead to the development of several high-performance ECO 2 R catalysts. This review presents the development and design of MoS 2 -based nanomaterials tailored for electrochemical CO 2 reduction (ECO 2 R), exploring the relationship between engineering strategies, catalytic performance, CO 2 conversion efficiency, and reaction pathways, while also highlighting controlled synthesis methods, recent advances in catalyst design for active site stabilization, and the influence of electrolytes on ECO 2 R performance. It also underscores the significant challenges that need to be overcome for the real-world implementation of MoS 2 -based nanomaterials in ECO 2 R to produce value-added chemicals, emphasizing the need for further research and development in this area.