کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1273000 | 1497486 | 2014 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake](/preview/png/1273000.png)
• High crystalline Cr-MOF with well-defined shape was prepared via modulated synthesis.
• High reproducibility can be expected at certain optimized synthesis conditions.
• It has good structure-stability in 80 °C H2O and DMF solutions for 5 days.
• It has enhanced H2 storage capacity against the reported results.
Modulated synthesis of MIL-101(Cr) in high yield and with good reproducibility using formic acid as a modulator is reported. Higher molar ratio of formic acid/CrCl3 was found to form better shape-defined MIL-101(Cr) crystals with higher surface area, larger pore volume and better hydrogen uptake performance. The highly crystalline MIL-101(Cr), composed of crystals in the size range of 100–150 nm with multifaceted surface, could be obtained in an optimized molar regime of CrCl3·6H2O/H2BDC/100HCOOH/550H2O at 210 °C for 8 h. The MIL-101(Cr) obtained from the modulated synthesis also showed high thermal and moisture stabilities as well as enhanced hydrogen storage capacity, making this material particularly promising for practical hydrogen storage applications.
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 23, 4 August 2014, Pages 12018–12023