کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1279956 | 1497594 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhanced hydrogen storage capacity of Pt-loaded CNT@MOF-5 hybrid composites Enhanced hydrogen storage capacity of Pt-loaded CNT@MOF-5 hybrid composites](/preview/png/1279956.png)
We report on an easy synthesis method for the preparation of a hybrid composite of Pt-loaded MWCNTs@MOF-5 [Zn4O(benzene-1,4-dicarboxylate)3] that greatly enhanced hydrogen storage capacity at room temperature. To prepare the composite, we first prepared Pt-loaded MWCNTs, which were then incorporated in-situ into the MOF-5 crystals. The obtained composite was characterized by various techniques such as powder X-ray diffractometry, optical microscopy, porosimetry by nitrogen adsorption, and hydrogen adsorption. The analyses confirmed that the product has a highly crystalline structure with a Langmuir specific surface area of over 2000 m2/g. The hybrid composite was shown to have a hydrogen storage capacity of 1.25 wt% at room temperature and 100 bar, and 1.89 wt% at cryogenic temperature and 1 bar. These H2 storage capacities represent significant increases over those of virgin MOF-5s and Pt-loaded MWCNTs.
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 23, December 2010, Pages 13062–13067