TY - JOUR
T1 - Synthesis and Characterization of Silica-Supported Boron Oxide Catalysts for the Oxidative Dehydrogenation of Propane
AU - Love, Alyssa M.
AU - Cendejas, Melissa C.
AU - Thomas, Brijith
AU - McDermott, William P.
AU - Uchupalanun, Pajean
AU - Kruszynski, Catherine
AU - Burt, Samuel P.
AU - Agbi, Theodore
AU - Rossini, Aaron J.
AU - Hermans, Ive
N1 - Funding Information:
Materials synthesis and characterization (A.M.L., M.C.C., P.U., C.K., and I.H.) were supported by the National Science Foundation under Grant CBET-1605101. Catalytic testing (W.P.M., S.P.B., T.A., and I.H.) was supported by U.S. Department of Energy under Grant DE-SC0017918. Solid-state NMR spectroscopy experiments (B.T. and A.J.R.) other than those shown in Figure 5 were supported by the National Science Foundation under Grant No. CBET-1916809. A.J.R. also thanks the Ames Laboratory Royalty Account and Iowa State University for additional funding. This study made use of the National Magnetic Resonance Facility at Madison, which is supported by NIH Grants P41 GM103399 (NIGMS) and P41GM66326 (NIGMS). Additional equipment was purchased with funds from the University of Wisconsin, the NIH (RR02781, RR08438), the NSF (DMB-8415048, OIA-9977486, BIR-9214394), and the USDA.
Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/11/7
Y1 - 2019/11/7
N2 - We report on the oxidative dehydrogenation (ODH) activity of silica-supported boron oxide prepared via incipient wetness impregnation. Characterization of pristine and spent catalysts with infrared, Raman, and solid-state NMR spectroscopy reveals the presence of both isolated and aggregated oxidized boron sites. The results of these investigations, in combination with our earlier work on bulk boron-containing ODH catalysts (e.g., h-BN, metal borides, and elemental boron), give direct evidence that oxidized boron species formed in situ on the surface of these materials are responsible for the exceptional catalytic behavior. We anticipate that investigation of supported boron materials can provide insight into the structural characteristics required for selective boron-containing ODH catalysts.
AB - We report on the oxidative dehydrogenation (ODH) activity of silica-supported boron oxide prepared via incipient wetness impregnation. Characterization of pristine and spent catalysts with infrared, Raman, and solid-state NMR spectroscopy reveals the presence of both isolated and aggregated oxidized boron sites. The results of these investigations, in combination with our earlier work on bulk boron-containing ODH catalysts (e.g., h-BN, metal borides, and elemental boron), give direct evidence that oxidized boron species formed in situ on the surface of these materials are responsible for the exceptional catalytic behavior. We anticipate that investigation of supported boron materials can provide insight into the structural characteristics required for selective boron-containing ODH catalysts.
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U2 - 10.1021/acs.jpcc.9b07429
DO - 10.1021/acs.jpcc.9b07429
M3 - Article
AN - SCOPUS:85075779957
SN - 1932-7447
VL - 123
SP - 27000
EP - 27011
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 44
ER -