A novel promoting effect of chelating ligand on the dispersion of Ni species over Ni/SBA-15 catalyst for dry reforming of methane

作者：Zhang, Qiulin^*; Long, Kaixian; Wang, Jing; Zhang, Tengfei; Song, Zhongxian; Lin, Qiang

来源：International Journal of Hydrogen Energy, 2017, 42(20): 14103-14114.

DOI：10.1016/j.ijhydene.2017.04.090

• Chelating ligand
• Ni catalysts
• Carbon dioxide reforming

A series of Ni/SBA-15 (AM) catalysts were prepared by chelating ligand assisted impregnation method. The results showed that the chelating ligand played a positive promoting role for CH4 dry reforming with CO2 over Ni/SBA-15. The electron-pair donor atoms and the high viscosity of chelating agent could inhibit the aggregation of nickel species and contribute to the well-dispersed Ni particles with size of <6 nm. Compared to the Ni/SBA-15 (CM) prepared by conventional impregnation, all the Ni/SBA-15 (AM) exhibited superior catalytic performance, especially the catalyst assisted by ethylenediamine possessed stable activity and the least amount of carbon deposition.

• 出版日期2017-5-18
• 单位海南师范大学; 昆明理工大学