Synthesis, Characterization and Hydrogen Storage Capacity of MIL-53

doi:10.3696/j.issn.1006-396X.2010.01.010

Journal of Petrochemical Universities ›› 2010, Vol. 23 ›› Issue (1): 39-42.DOI: 10.3696/j.issn.1006-396X.2010.01.010

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Synthesis, Characterization and Hydrogen Storage Capacity of MIL-53

Liaoning Key Laboratory of Petrochemical Engineering, Liaoning Shihua University, Fushun Liaoning 113001, P.R.China

Received:2009-11-13 Revised:2009-12-17 Published:2010-03-25 Online:2010-03-25

MIL-53的合成和表征及储氢性能研究

孙丽娜,尹作娟,张晓彤,宋丽娟^*,段林海

辽宁石油化工大学辽宁省石油化工重点实验室, 辽宁抚顺113001

作者简介:孙丽娜(1985 -), 女, 吉林四平市, 在读硕士
基金资助:
国家自然基金资助项目(No .20976077)

Abstract

Abstract:

Three-dimensional network structure of the metal-organic frameworks(MOFs), MIL-53(Cr)as and MIL-53(Al)as, was hydrothermally synthesized by heating a mixture of 1,4-benzenedicarboxylic acid(H2BDC), water, chromium nitrate, and aluminum nitrate for three days at 220 ℃. The samples were then calcinated at 300 ℃ and 330 ℃, respectively, to obtaine MIL-53(Cr)ht and MIL-53(Al)ht. The structure, composition and hydrogen storage properties of the materials were investigated by means of X-ray diffraction (XRD), intelligent weight analyzer (IGA), scanning electron microscopy (SEM), infrared spectrometer (IR) and thermal gravimetric analysis (TG). The results show that the unique breathing effect of the metal-organic frameworks MIL-53, especially the MIL-53(Al)ht which possesses a high surface area, large pore volume and diameter, makes a beter hydrogen absorption performance.

Key words: MIL －５３ , Synthesis , Characterization , Breathing effect , Hydroen storage properties

摘要： 采用水热合成法将对苯二甲酸(H2BDC)、水分别与 Cr(NO3 )3 . 9H2O、A l(NO3 )3 . 9H2O混合后加热至220℃晶化 3 d,合成了具有三维立体网状骨架结构的有机金属骨架 MIL-53(Cr)as与 MIL-53(Al)as,将其分别在300、330℃下煅烧 3 d得到有机金属骨架 MIL-53(Cr)ht与 MIL-53(Al)ht。通过 X射线衍射(XRD)、智能重量分析仪(IGA)、扫描电镜(SEM)、红外光谱仪(IR)和热重分析仪(TG)等表征手段系统地对它们的结构、组成以及储氢性能进行了研究。实验结果表明,有机金属骨架 MIL-53系列独特的骨架呼吸特性使其具有良好的储氢性能,且具有较高比表面积、孔容及孔径的 MIL-53(Al)在储氢性能方面具有更好的表现。

关键词: MIL－５３ , 合成 , 表征 , 呼吸特性 , 储氢性能

SUN Li-na, YIN Zuo-juan, ZHANG Xiao-tong,et al. Synthesis, Characterization and Hydrogen Storage Capacity of MIL-53[J]. Journal of Petrochemical Universities, 2010, 23(1): 39-42.

孙丽娜,尹作娟,张晓彤. MIL-53的合成和表征及储氢性能研究[J]. 石油化工高等学校学报, 2010, 23(1): 39-42.

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Synthesis, Characterization and Hydrogen Storage Capacity of MIL-53

MIL-53的合成和表征及储氢性能研究

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