Xu Xuesong, Sun Benteng, Liang Zhangqian, Cui Hongzhi, Tian Jian
School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
ACS Appl Mater Interfaces. 2020 Jun 10;12(23):26060-26067. doi: 10.1021/acsami.0c06744. Epub 2020 May 27.
Herein, 1T-MoS nanospots assembled on conductive TiC MXene (1T-MoS@TiC) are first developed to regard as efficient electrocatalytic nitrogen fixation catalysts with high selectivity. The 1T-MoS@TiC composite exhibits outstanding NRR activity with a faradic efficiency (FE) of 10.94% and a NH yield rate of 30.33 μg h mg at -0.3 V versus RHE. Notably, the 1T-MoS@TiC composite displays excellent stability and durability during the recycling test. The outstanding NRR catalytic activity is primarily attributed to the synergy effect between 1T-MoS and TiC MXene. In addition, the isotopic experiment confirms the synthesized NH deriving from the conversion of the supplied nitrogen.
在此，首次开发了组装在导电TiC MXene上的1T-MoS纳米点（1T-MoS@TiC），将其视为具有高选择性的高效电催化固氮催化剂。1T-MoS@TiC复合材料表现出出色的NRR活性，在相对于可逆氢电极（RHE）为-0.3 V时，法拉第效率（FE）为10.94%，NH产率为30.33 μg h mg。值得注意的是，1T-MoS@TiC复合材料在循环测试中表现出优异的稳定性和耐久性。出色的NRR催化活性主要归因于1T-MoS和TiC MXene之间的协同效应。此外，同位素实验证实了合成的NH来源于所供应氮的转化。
