Chinese Journal of Catalysis

Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (5): 1027-1032.DOI: 10.1016/S1872-2067(12)60526-9

• Articles • Previous Articles    

WANG Yi, XU Liang, XU Lei, LI Hexing, LI Hui   

  1. The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
  • Received:2012-12-03 Revised:2013-05-20 Online:2013-05-06 Published:2013-05-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21273149), the Program for New Century Excellent Talents in University (NCET-11-1052), and the Shanghai Science & Technology and Education Committee (11JC1408900, 12490502800, 10SG41, 12YZ084).

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Abstract:

Mesoporous silica (SBA-15)-supported Ru-B catalyst was synthesized by ultrasound-assisted incipient wetness infiltration of (NH4)2RuCl6 into SBA-15 and a subsequent reduction with BH4-. It was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, differential scanning calorimetry, and transmission electron microscopy. The resulting Ru-B-X/SBA-15 catalyst was identified to be an amorphous alloy highly dispersing within the pore channels of SBA-15. During liquid-phase maltose hydrogenation, the as-synthesized Ru-B-X/SBA-15 catalyst was more active than the Ru-B-C/SBA-15 obtained via the same process but using RuCl3 as the metal source. The as-prepared Ru-B-X/SBA-15 delivered catalytic activity up to seven times greater than that associated with the reference unsupported Ru-B-C catalyst prepared through the reduction of RuCl3 with BH4, and could be used repetitively 11 times without significant deactivation.

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