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31.19

Hoá học

Nguyen Tien Thao, Nguyen Phuong Thao(1)

Tổng hợp và đặc tính hóa các chất xúc tác MoS2/Mg(AlO)x

Synthesis and characterization of MoS2/Mg(AlO)x catalysts

Hóa học

2014

5

537-542

0866-7144

Mg0.7Al0.3(OH)2(CO3)0.15.xH2O hydrotalcite was synthesized by co-precipitate method prior to the thermal decomposition in order to prepare the Mg(AlO)x supported molybdenum sulfide catalysts. Two MoS2/Mg(AlO)x samples were prepared by the wetness impregnation method. Both the Mg-AI hydrotalcite parent and MoS2/Mg-AI-O catalyst were characterized by XRD, SEM, TEM, EDX, and XPS. The characteristic results indicated a good dispersion of MoS2 on Mg(AlO)x periclase-like oxide matrix. The dispersion of MoS2/support is varied with the amount of MoS2 loading. A partial amount of S-2 moiety on the surface was spontaneously oxidized to sulfate ion after storing several weeks in air.

TTKHCNQG, CVv 14