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/CrCl(sub3) 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 100e150 nm with multifaceted surface, could be obtained in an optimized molar regime of CrCl(sub3) 6H(sub2)O/H(sub2)BDC/100HCOOH/550H(sub2)O at 210 degrees 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.
Reference:
Ren, J., Musyoka, N.M., Langmi, H.W., Segakweng, T., North, B.C., Mathe, M, and Kang, X. 2014. Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake. International Journal of Hydrogen Energy, vol. 39(23), pp 12018-12023
Ren, J., Musyoka, N. M., Langmi, H. W., Segakweng, T., North, B. C., Mathe, M. K., & Kang, X. (2014). Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake. http://hdl.handle.net/10204/7762
Ren, Jianwei, Nicholas M Musyoka, Henrietta W Langmi, T Segakweng, Brian C North, Mahlanyane K Mathe, and X Kang "Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake." (2014) http://hdl.handle.net/10204/7762
Ren J, Musyoka NM, Langmi HW, Segakweng T, North BC, Mathe MK, et al. Modulated synthesis of chromium-based metal-organic framework (MIL-101) with enhanced hydrogen uptake. 2014; http://hdl.handle.net/10204/7762.
Copyright: 2014 Elsevier. This is AN ABSTRACT ONLY. The definitive version is published in International Journal of Hydrogen Energy, vol. 39(23), pp 12018-12023
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