Adsorption of a Catalytically Accessible Polyoxometalate in a Mesoporous Channel-type Metal–Organic Framework

A Keggin-type polyoxometalate (H3PW12O40) was incorporated into a mesoporous Zr-based MOF (NU-1000) via an impregnation method in aqueous media, resulting in the hybrid material, PW12@NU-1000. The POM@MOF composite was characterized by a suite of physical methods, indicating the retention of crystal...

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Bibliographic Details
Published inChemistry of materials Vol. 29; no. 12; pp. 5174 - 5181
Main Authors Buru, Cassandra T, Li, Peng, Mehdi, B. Layla, Dohnalkova, Alice, Platero-Prats, Ana E, Browning, Nigel D, Chapman, Karena W, Hupp, Joseph T, Farha, Omar K
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 27.06.2017
American Chemical Society (ACS)
Subjects
catalysis
MATERIALS SCIENCE
metal–organic frameworks
NU-1000
phosphotungstic acid
polyoxometalate
POM@MOF
sulfide oxidation
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Summary:A Keggin-type polyoxometalate (H3PW12O40) was incorporated into a mesoporous Zr-based MOF (NU-1000) via an impregnation method in aqueous media, resulting in the hybrid material, PW12@NU-1000. The POM@MOF composite was characterized by a suite of physical methods, indicating the retention of crystallinity and high porosity of the parent MOF. The hybrid material was also stable to leaching in aqueous media at varying pH. Finally, the material was tested as a heterogeneous catalyst for the oxidation of 2-chloroethyl ethyl sulfide using hydrogen peroxide as the oxidant. PW12@NU-1000 was shown to have a higher catalytic activity than either of the individual constituents alone.
Bibliography:AC02-06CH11357
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division
National Science Foundation (NSF)
W.M. Keck Foundation
US Army Research Office (ARO)
ISSN:0897-4756
1520-5002
DOI:10.1021/acs.chemmater.7b00750