Acta Phys. -Chim. Sin. ›› 2014, Vol. 30 ›› Issue (1): 129-134.doi: 10.3866/PKU.WHXB201311201

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Pd Nanoparticles Deposited on Metal-Organic Framework of MIL-53(Al):an Active Catalyst for CO Oxidation

LIANG Qian, ZHAO Zhen, LIU Jian, WEI Yue-Chang, JIANG Gui-Yuan, DUAN Ai-Jun   

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, P. R. China
  • Received:2013-08-26 Revised:2013-11-20 Published:2014-01-01
  • Contact: ZHAO Zhen, LIU Jian E-mail:zhenzhao@cup.edu.cn;liujian@cup.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21073235, 21173270, 21177160) and National High-Tech Research and Development Program of China (863) (2013AA061902).

Abstract:

Pd nanoparticles (NPs) supported on a metal-organic framework (MOF), MIL-53(Al) (MIL: Materials of Institut Lavoisier), were prepared using the incipient wetness impregnation method. The structures of the synthesized Pd/MIL-53(Al) catalysts were determined using X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The same peaks were observed in the XRD patterns of Pd/MIL-53(Al) before and after the catalytic reaction, confirming that the integrity of the MIL-53(Al) support was maintained. The TEM results indicated that the crystalline porous structure of MIL-53(Al) favored the formation of highly dispersed Pd NPs of average size 2.21 nm. The heterogeneous catalytic composite materials exhibited high activities for CO oxidation, with full conversion at 115 ℃. The catalytic activity and structure of Pd/MIL-53(Al) were stable after several reaction runs.

Key words: Metal-organic framework, MIL-53(Al), Palladium nanoparticle, Heterogeneous catalysis, CO oxidation

MSC2000: 

  • O643