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Hydroxyapatite‐Supported Polyoxometalates for the Highly Selective Aerobic Oxidation of 5‐Hydroxymethylfurfural or Glucose to 2,5‐Diformylfuran under Atmospheric Pressure
Author(s) -
Wang Qiwen,
Li Ying,
Guan Hongyu,
Yu Hang,
Wang Xiaohong
Publication year - 2021
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.202100199
Subject(s) - catalysis , yield (engineering) , chemistry , oxygen , atmospheric pressure , ion exchange , chemical engineering , nuclear chemistry , inorganic chemistry , ion , organic chemistry , materials science , metallurgy , oceanography , engineering , geology
(NH 4 ) 5 H 6 PV 8 Mo 4 O 40 supported on hydroxyapatite (HAP) (PMo 4 V 8 /HAP (n)) was prepared through the ion exchange of hydroxy groups. This ion exchange favored the oxidative conversion of 5‐hydroxymethylfurfural (5‐HMF) to 2,5‐diformylfuran (DFF) in a one‐pot cascade reaction with 96.0 % conversion and 83.8 % yield under 10 mL/min of O 2 flow. PMo 4 V 8 /HAP (31) was used to explore the production of DFF directly from glucose with the highest yield of 47.9 % so far under atmospheric oxygen, whereas the yield of DFF increased to 54.7 % in a one‐pot and two‐step reaction. These results indicated that the active sites in PMo 4 V 8 /HAP (31) retained their activities without any interference toward one another, which enabled the production of DFF in a more cost‐saving way by only using oxygen and one catalyst in a one‐step reaction. Meanwhile, the rigid structure of HAP and strong interaction in PMo 4 V 8 /HAP (31) allowed this catalyst to be reused for at least six times with high stability and duration.