Facile synthesis of Cu2SnS3 nanocrystals for efficient nitrogen reduction reaction

作者：Xiuting He, Zeqing Ling, Xuanwu Peng, Xianghua Yang, Liang Ma, Shun Lu · 发表于：Electrochemistry Communications · 年份：2023 · DOI：10.1016/j.elecom.2023.107441 · 被引用次数：34 · 研究领域：Ammonia Synthesis and Nitrogen Reduction、Advanced Photocatalysis Techniques、Caching and Content Delivery

The conversion of naturally abundant nitrogen into ammonia in a sustainable way at room temperature would be an ideal alternative to the currently dominant Haber–Bosch process. However, the rational design and synthesis of efficient and stable noble-metal-free electrocatalysts for the nitrogen reduction reaction (NRR) still represents a major challenge. Herein, novel Cu2SnS3 nanocrystals with a uniform nanostructure were prepared through a hydrothermal approach by tuning the heating time. Electrochemical measurements demonstrated that Cu2SnS3 synthesized by heating at 200 °C for 10 h achieved a faradaic efficiency for the NRR of 8.87 % and a NH3 yield of 8.22 μg h−1 mg cat−1 at −0.4 V in 0.1 M Na2SO4. These results suggest a feasible new route toward the rational design of NRR catalysts with high stability and selectivity for use in clean energy conversion.