NDLI: Simply packaging Ni nanoparticles inside SBA-15 channels by co-impregnation for dry reforming of methane

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Qi Ma, Longlong Zhang, Qiao Lv, Wei Qiu, Songbai Wang, Tiejun
Copyright Year	2017
Abstract	The highly dispersed Ni nanoparticles inside SBA-15 channels (Ni@SBA-15) were synthesized simply by co-impregnation using ethylene glycol (EG). During co-impregnation, the EG additive in the metal nitrate aqueous solution could successfully deliver and package the nickel species into the channels of mesoporous SBA-15. The characterization results suggest that drying after impregnation plays a critical role in the distribution of the precursor. Compared with conventional impregnation, redistribution and agglomeration of the Ni precursor were efficiently avoided due to the lower surface tension and high viscosity of the concentrated solution during drying, and super-small Ni nanoparticles with higher dispersions and narrow particle size distributions were predominantly confined over the internal surface of mesoporous channels instead of its external surface. The Ni@SBA-15 catalyst using co-impregnation demonstrated excellent sintering-resistance and stability in the dry reforming of methane due to its strong metal-support interaction and the confined location of Ni nanoparticles.
Starting Page	24551
Ending Page	24560
Page Count	10
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	39
Journal	RSC Advances
DOI	10.1039/c7ra00149e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Viscosity Methane Ethylene glycol Mesoporous material Nitrate Critical Role Nickel Surface tension Carbon dioxide reforming
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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