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Product Control in Conversion of Ethanol on MIL‐101(Cr) with Adjustable Brønsted Acid Density
Author(s) -
Ming Zheng,
Wang Yingli,
Zhang Tiexin,
Li Lingyun,
Duan Chunying,
Liu Zhongmin
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001346
Subject(s) - nitromethane , catalysis , chemistry , sulfuric acid , brønsted–lowry acid–base theory , ethanol , titration , sulfation , solvent , diethyl ether , inorganic chemistry , nuclear chemistry , organic chemistry , biochemistry
Abstract MIL‐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.