期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 43, 页码 15421-15427出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201501413
关键词
Boron; desulfurization; nanoparticles; nitrides; tungsten
资金
- National Nature Science Foundation of China [21376111, 21276117, 21576122]
- Six Big Talent Peak in Jiangasu Province [JNHB-004]
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy
Tungsten oxide nanoparticles (WO(x)NPs) are gaining increasing attention, but low stabiliity and poor dispersion of WO(x)NPs hinder their catalytic applications. Herein, WO(x)NPs were confined in graphene-analogous boron nitride (g-BN) by a one-step, in situ method at high temperature, which can enhance the interactions between WO(x)NPs and the support and control the sizes of WO(x)NPs in a range of about 4-5nm. The as-prepared catalysts were applied in catalytic oxidation of aromatic sulfur compounds in which they showed high catalytic activity. A balance between the W loading and the size distribution of the WO(x)NPs could govern the catalytic activity. Furthermore, a synergistic effect between g-BN and WO(x)NPs also contributed to high catalytic activity. The reaction mechanism is discussed in detail and the catalytic scope was enlarged.
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