Zhang Rui, Xue Yanjun, Ma Min, Han Ye, Tian Jian
School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
Nano Lett. 2024 Aug 21;24(33):10297-10304. doi: 10.1021/acs.nanolett.4c02869. Epub 2024 Aug 12.
In this paper, TiCT MXene/Cu-Bi bimetallic sulfide (TiCT/BiCuS) composites were prepared by a simple deposition method for electrocatalytic nitrogen reduction reaction (eNRR). Compared to TiCT/BiS and TiCT/CuS, the eNRR performance of TiCT/BiCuS is significantly improved. The results show that TiCT/BiCuS exhibits a NH yield of 62.57 μg h mg in 0.1 M NaSO at -0.6 V vs reversible hydrogen electrode, and the Faradaic efficiency (FE) reaches 67.69%, which is better than that of TiCT/CuS (NH yield: 52.26 μg h mg, FE: 34.15%) and TiCT/BiS (NH yield: 54.04 μg h mg, FE: 37.38%). According to density functional theory calculations, the eNRR at the TiCT/BiCuS surface is the alternating pathway. The H NMR experiment of N proves that the N of NH generated in the experiment originates from N passed during the experiment.
在本文中，通过一种简单的沉积方法制备了TiCT MXene/Cu-Bi双金属硫化物（TiCT/BiCuS）复合材料用于电催化氮还原反应（eNRR）。与TiCT/BiS和TiCT/CuS相比，TiCT/BiCuS的eNRR性能显著提高。结果表明，在相对于可逆氢电极-0.6 V的0.1 M NaSO中，TiCT/BiCuS的NH产率为62.57 μg h mg，法拉第效率（FE）达到67.69%，优于TiCT/CuS（NH产率：52.26 μg h mg，FE：34.15%）和TiCT/BiS（NH产率：54.04 μg h mg，FE：37.38%）。根据密度泛函理论计算，TiCT/BiCuS表面的eNRR为交替途径。N的1H NMR实验证明，实验中产生的NH的N来源于实验过程中通入的N。
