催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (7): 655-659.

• 研究论文 • 上一篇    下一篇

负载镍的金属有机骨架化合物在温和条件下的储氢性能

刘颖雅1,2,张箭1,2,曾巨澜1,2,褚海亮1,2,徐芬1,孙立贤1   

  1. 1 中国科学院大连化学物理研究所, 辽宁大连 110623; 2 中国科学院研究生院, 北京 100049
  • 收稿日期:2008-07-25 出版日期:2008-07-25 发布日期:2012-06-07

Hydrogen Storage Capacity of Nickel Supported on a Metal-Organic Framework Compound under Mild Conditions

LIU Yingya1,2, ZHANG Jian1,2, ZENG Julan1,2, CHU Hailiang1,2, XU Fen1*, SUN Lixian1*   

  1. 1 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2008-07-25 Online:2008-07-25 Published:2012-06-07

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1312

被引次数

29

摘要： 利用传统的浸渍法在一种金属有机骨架化合物MIL-101(Cr3F(H2O)2O[(O2C)-C6H4-(CO2)]3·nH2O, n≈25)上负载金属镍,制备了Ni/MIL-101复合材料. 通过采用不同的浸渍手段(过量浸渍,等体积浸渍)和不同的还原方法(液相化学还原,固相加氢还原)制得了不同的Ni/MIL-101样品,并考察了这些样品在温和条件(25～100 ℃, 0.01～4 MPa)下的储氢性能. 结果表明, Ni/MIL-101样品的储氢性能均比MIL-101的储氢性能有所改善. 其中,采用过量浸渍和液相化学还原相结合制备的Ni/MIL-101样品的储氢性能最佳,储氢量可达1.02%.

关键词: 镍, 金属有机骨架化合物, 负载型复合材料, 储氢性能, 浸渍, 化学还原, 加氢还原

Abstract: The traditional impregnation method was used to support nickel ions on the metal-organic framework compound MIL-101 (Cr3F(H2O)2O[(O2C)-C6H4-(CO2)]3·nH2O, n≈25) for the preparation of a Ni/MIL-101 composite material. With two ways of impregnation (excessive impregnation and incipient wetness impregnation) followed by two ways of reduction (liquid chemical reduction and solid hydrogenation reduction), four Ni/MIL-101 samples were obtained. The hydrogen storage capacity of the Ni/MIL-101 samples was measured under mild conditions(25-100℃,0.01-4MPa). Compared with the original MIL-101, Ni/MIL-101 had high hydrogen storage capacity because of the Ni particles supported on MIL-101. Among these samples, the sample prepared by excessive impregnation followed by liquid chemical reduction exhibited the highest hydrogen storage capacity of 1.02% at 100 ℃ and 4.0 MPa.

Key words: nickel, metal-organic framework compound, supported composite material, hydrogen storage capacity, impregnation, chemical reduction, hydrogen reduction