Using glucose,urea,ruthenium chloride and silica sol as the precursors and carbonized glucose as the carbon template,ruthenium nanoparticles confined within mesoporous silica (Ru-SiO2) with highly dispersion was prepared by microwave-assisted method.The structure and morphology of the materials were characterized by XRD,TEM and BET analysis.The evaluation of catalytic activity of the sample was carried out by thermocatalytic ammonia decomposition reaction.The results showed that the materials prepared by in-situ method exhibited an excellent catalytic activity and higher conversion rate at the same temperature.Combined with the results,this was mainly attributed to the limited action of silica carrier on the active component Ru,which made Ru particles own small and uniform particle size and thermal stability.
Nie Tianming, Song Wenjing, Zhao Jiawen, Deng Lidan, Jiang Xingmao
. Preparation and NH3 decomposition of Ru nanoparticle confined within SiO2[J]. New Chemical Materials, 2020
, 48(8)
: 203
-207
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.08.045
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