Citation: LI Jian, WU Hai-Shun, YANG Li-Na, YANG Xiao-Rong, MA Bo. Ultrasound Assisted Synthesis of Highly Dispersed Pt/CMK-3-US as Catalyst for Hydrogenation of Naphthalene[J]. Chinese Journal of Inorganic Chemistry, ;2017, 33(4): 583-588. doi: 10.11862/CJIC.2017.072 shu

Ultrasound Assisted Synthesis of Highly Dispersed Pt/CMK-3-US as Catalyst for Hydrogenation of Naphthalene

LI Jian ^1,2 ,
WU Hai-Shun ¹ ,
YANG Li-Na ² ,
YANG Xiao-Rong ² ,
MA Bo ^1,*,,

1.
School of Chemistry and Materials Science, Shanxi Normal University, Linfen, Shanxi 041004, China
2.
School of Petrochemical Engineering, Liaoning Shihua University, Fushun, Liaoning 113001, China

Corresponding author: MA Bo, bomasx@163.com
Received Date: 30 September 2016
Revised Date: 19 December 2016

Figures(8)

With CMK-3 mesoporous carbon as support Pt/CMK-3, Pt/CMK-3-US, Pt/CMK-3-HNO₃ and Pt/CMK-3-CTAB were synthesized by traditional impregnation method, ultrasound assisted impregnation method, treating support with HNO₃ and surfactant assisted impregnation method respectively. Catalysts were characterized and their catalytic performances were evaluated. Characterizations including XRD, BET, SEM, TEM and H₂-TPR results showed that the dispersion of Pt in Pt/CMK-3 is the worst, Pt can disperse well in Pt/CMK-3-HNO₃ and Pt/CMK-3-CTAB, however, HNO₃ may destroy the pore structure of CMK-3, and the surface properties of CMK-3 in Pt/CMK-3-HNO₃ and Pt/CMK-3-CTAB have obvious changes. Only the ultrasound assisted impregnation method can improve the dispersion of Pt based on the maintenance of the pore structure and surface properties of CMK-3, the particle size of Pt is about 3 nm. The catalytic activity and selectivity of Pt/CMK-3-US were higher than Pt/CMK-3, and much higher than Pt/CMK-3-HNO₃ and Pt/CMK-3-CTAB. Conversion of naphthalene is over 98% and the selectivity for dekalin is more than 95%.
- mesoprous carbon,
- Pt catalyst,
- ultrasonic assisted treatment,
- disperse,
- hydrogenation of naphthalene
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沈阳化工大学材料科学与工程学院沈阳 110142