Table · dataset · 2019
Data for Replacement of chromium by non-toxic metals in Lewis-Acid MOFs: assessment of stability as glucose conversion catalysts
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The metal-organic framework MIL-101(Cr) is known as a solid-acid catalyst for the solution conversion of biomass-derived glucose to 5-hydroxymethyl furfural (5-HMF).
Description
We study the substitution of Cr3+ by Fe3+ and Sc3+ in the MIL-101 structure in order to prepare more environmentally benign catalysts. MIL-101(Fe) can be prepared and inclusion of Sc is possible at low levels (10 % of Fe replaced).
On extended synthesis times the polymorphic MIL-88B structure instead forms. Increasing the amount of Sc also yields only MIL-88B even at short crystallisation times. The MIL-88B structure is unstable under hydrothermal conditions, but in dimethylsulfoxide solvent it provides 5-HMF from glucose as the major product.
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The optimum material is a bimetallic Fe,Sc form of MIL-88B, which provides ~70 % conversion of glucose with 35 % selectivity towards 5-HMF after 3 hours at 140 oC: this offers high conversion compared to other heterogeneous catalysts reported in the same solvent.<br><br>Raw experimental data for article "Replacement of Chromium by Non-toxic Metals in Lewis-Acid MOFs: Assessment of Stability as Glucose Conversion Catalysts" Data are all in two-column ascii format (xy).
Powder X-ray diffraction (Figures 3,4 and 5) are intensity(y) vs angle (x) XPS (Figure 7) are counts (y) vs binding energy (x) IR spectra (Figure 8) are absorbance (y) vs wavenumber (x) Ammonia TPD (Figure 10) are counts (y) vs temperature (x)
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- DOI doi.org/10.82444/warw.33779464.v1 ↗
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- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
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Topics
Provenance · 1 source records, 17 field assertions
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