Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 313, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2020.110842
Keywords
dry reforming of methane; Encapsulation structure of silicalite-2 zeolite; Strong metal-support interaction; Confined Ni nanoparticles; Ni phyllosilicate
Categories
Funding
- National Natural Science Foundation of China (NSFC) [22075204, U1462122]
Ask authors/readers for more resources
The novel structured catalyst Ni@S2-T, designed and synthesized through a unique two-step method, exhibited optimal catalytic activity and stability for dry reforming of methane (DRM). It showed remarkable anti-coking ability during prolonged testing, making it a promising candidate for DRM reactions.
Novel structure catalyst of Ni@S2-T with Ni nanoparticles highly dispersed in silicalite-2 zeolite (S2) was designed and synthesized via novel two-steps methods, micro-emulsion method followed by solvent-free crystallization route. Due to the unique two-step synthetic process, the confinement effect of the silicalite-2 shell and stronger metal-support interaction caused by the formation of Ni phyllosilicate intermediate in shell, were regarded as the main reasons for the superb catalytic performances of Ni@S2-T for dry reforming of methane (DRM). Compared with Ni-SiO2 by micro-emulsion method, Ni/S2 by impregnation method and Ni@S2-O by direct crystallization, Ni@S2-T catalyst exhibited optimal catalytic activity and stability for DRM. No activity loss was observed during 70 h at high GHSV of 240000 mL g(-1)h(-1). Meanwhile, over spent Ni@S2-T catalyst, hardly any coke was found after the prolonged test, which indicated the remarkable anti-coking ability of Ni@S2-T.
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