Self-complexation: the nature for high hydrodesulfurization activity of NiWO4 nanoparticles

Autor: Qinghe Yang, Hong Nie, Mingfeng Li, Dadong Li, Yunfei Bi, Guofu Xia, Shuangqin Zeng
Rok vydání: 2014
Předmět:
Zdroj: Catalysis Communications. 57:5-8
ISSN: 1566-7367
Popis: NiWO 4 nanoparticles and two kinds of the precursors were synthesized by a hydrothermal approach and tested for the hydrodesulfurization of sulfur containing organics. Results show that the hydrodesulfurization activity of sulfided NiWO 4 nanoparticles is highest among them. The investigation about the nature for different hydrodesulfurization activities of the catalysts reveals that a simultaneous sulfidation i.e. self-complexation of nickel and tungsten can be observed on NiWO 4 nanoparticles. Furthermore, both temperature-programmed sulfidation and TEM images demonstrated that the self-complexation is originated from the special structure and size of NiWO 4 nanoparticles. These results show a promising potential to develop efficient hydrotreatment catalyst.
Databáze: OpenAIRE