Fu-dong Zhou, Wei Chu, Xiao-yan Dai, Shi-zhong Luo. Nano-porous Composites Based on Heteropolyacid Functionalized Ionic Liquid: Synthesis, Characterization, and Catalytic Performance in Esterification[J]. Chinese Journal of Chemical Physics , 2010, 23(4): 473-478. doi: 10.1088/1674-0068/23/04/473-478
Citation: Fu-dong Zhou, Wei Chu, Xiao-yan Dai, Shi-zhong Luo. Nano-porous Composites Based on Heteropolyacid Functionalized Ionic Liquid: Synthesis, Characterization, and Catalytic Performance in Esterification[J]. Chinese Journal of Chemical Physics , 2010, 23(4): 473-478. doi: 10.1088/1674-0068/23/04/473-478

Nano-porous Composites Based on Heteropolyacid Functionalized Ionic Liquid: Synthesis, Characterization, and Catalytic Performance in Esterification

doi: 10.1088/1674-0068/23/04/473-478
Funds:  This work was supported by the National Basic Re-search Program of China (No.2007CB936800).
  • Received Date: 2010-03-16
  • Functionalized ionic liquid samples (bmim-PW12) were synthesized by 1-butyl-3-methyl-imidazolium bromide (bmimBr) and 12-phosphotungstic heteropolyacid (PW12). The sam-ples were annealed at 100-450 oC and were characterized by Fourier transform infrared spec-troscopy, X-ray diffraction, scanning electron microscope, thermal gravity-DTG, brunauer emmett teller, and NH3-temperature programmed desorption. The results showed that the bmim-PW12 samples were crystal and maintained intact Keggin structure. The organic parts of those samples were partly decomposed at a temperature more than 350 oC. The sample annealed at 400 oC exhibited nano-porous structure, strong acidity, and excellent catalytic activity on the esterification of n-butanol with acetic acid. The higher ester yield was ob-tained when the mass ratio of catalyst over the reactants amount was 5% for bmim-PW12 catalyst annealed at 400 oC.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Nano-porous Composites Based on Heteropolyacid Functionalized Ionic Liquid: Synthesis, Characterization, and Catalytic Performance in Esterification

doi: 10.1088/1674-0068/23/04/473-478
Funds:  This work was supported by the National Basic Re-search Program of China (No.2007CB936800).

Abstract: Functionalized ionic liquid samples (bmim-PW12) were synthesized by 1-butyl-3-methyl-imidazolium bromide (bmimBr) and 12-phosphotungstic heteropolyacid (PW12). The sam-ples were annealed at 100-450 oC and were characterized by Fourier transform infrared spec-troscopy, X-ray diffraction, scanning electron microscope, thermal gravity-DTG, brunauer emmett teller, and NH3-temperature programmed desorption. The results showed that the bmim-PW12 samples were crystal and maintained intact Keggin structure. The organic parts of those samples were partly decomposed at a temperature more than 350 oC. The sample annealed at 400 oC exhibited nano-porous structure, strong acidity, and excellent catalytic activity on the esterification of n-butanol with acetic acid. The higher ester yield was ob-tained when the mass ratio of catalyst over the reactants amount was 5% for bmim-PW12 catalyst annealed at 400 oC.

Fu-dong Zhou, Wei Chu, Xiao-yan Dai, Shi-zhong Luo. Nano-porous Composites Based on Heteropolyacid Functionalized Ionic Liquid: Synthesis, Characterization, and Catalytic Performance in Esterification[J]. Chinese Journal of Chemical Physics , 2010, 23(4): 473-478. doi: 10.1088/1674-0068/23/04/473-478
Citation: Fu-dong Zhou, Wei Chu, Xiao-yan Dai, Shi-zhong Luo. Nano-porous Composites Based on Heteropolyacid Functionalized Ionic Liquid: Synthesis, Characterization, and Catalytic Performance in Esterification[J]. Chinese Journal of Chemical Physics , 2010, 23(4): 473-478. doi: 10.1088/1674-0068/23/04/473-478

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