Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 60, Issue 8, Pages 3324-3333Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.0c06020
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [22078134]
- Chemistry Department in Qingdao University of Science and Technology [QUSTHX201917]
- Jiangsu University [16JDG062]
- Jiangsu provincial government
Ask authors/readers for more resources
The study found that the supported Ni/SiO2-E catalyst synthesized by strong electrostatic adsorption exhibited higher performance in low-temperature MDR, attributed to the smaller Ni size and stronger Ni-SiO2 interaction, which contributed to reduced carbon deposition and minimized sintering of Ni nanoparticles.
Low-temperature methane dry reforming (MDR) over supported Ni catalysts is a more economical way to convert greenhouse gases than high-temperature MDR. However, sintering from Ni aggregation and carbon deposition from deep cracking of CH4 caused catalyst deactivation. In this study, we synthesized a supported Ni/SiO2-E catalyst by strong electrostatic adsorption for low-temperature MDR (673-773 K). Experimental results showed that the Ni/SiO2-E catalyst exhibited higher performance on using low-temperature MDR than the Ni/SiO2-I catalyst prepared by the conventional impregnation method. From characterizations of X-ray diffraction (XRD), transmission electron microscopy (TEM), hydrogen temperature-programmed reduction (H-2-TPR), etc. in fresh catalysts and used catalysts, the excellent stable performance of MDR over the Ni/SiO2-E catalyst was associated with the smaller Ni size and the stronger Ni-SiO2 interaction. The former contributed to less formation of carbon deposits and the latter resulted in hardly any sintering of Ni nanoparticles.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available