Abstract
AbstractMIL‐101(Cr) with adjustable Brønsted acid density was prepared via post‐synthetic sulfation strategy, which was carried out with sulfuric acid in the presence of trifluoromethanesulfonic anhydride, using nitromethane as solvent. XRD, TG, EDS, XPS, IR, NH3‐TPD and acid‐base titration were used to characterize structure and acidity. Adopting conversion of ethanol as a probe reaction, gas‐solid catalytic characteristics on MIL‐101(Cr) and post‐synthetic sulfated MIL‐101(Cr) in a micro fixed‐bed reactor were studied by continuous feeding. Combined with the regulation of reaction parameters, selective production of ethylene (100 %) or diethyl ether (99 %) could be achieved.
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