Chemically Nonequivalent Sites in Mesoporous BCN Revealed by Solid-state NMR at 21.8T

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著者

    • MURAKAMI Miwa
    • Advanced Nano Characterization Center, National Institute for Materials Science
    • SHIMIZU Tadashi
    • Advanced Nano Characterization Center, National Institute for Materials Science
    • TANSHO Masataka
    • Advanced Nano Characterization Center, National Institute for Materials Science
    • VINU Ajayan
    • Fuel Cell Materials Center, National Institute for Materials Science
    • ARIGA Katsuhiko
    • Fuel Cell Materials Center, National Institute for Materials Science

抄録

Solid-state <SUP>11</SUP>B magic-angle spinning (MAS) NMR studies on novel mesoporous BCN material are described. While the <SUP>11</SUP>B MAS spectrum at 11.7 T shows severe signal overlap as a result of the second-order quadrupolar broadening, the resolution improves significantly at 21.8 T and three distinct peaks are observed, indicating the presence of three sites in the material. Possible microstructures of the three sites are discussed in terms of their isotropic chemical shifts, quadrupolar coupling constants, and asymmetric parameters determined from spectral simulation.

収録刊行物

  • Chemistry letters

    Chemistry letters 35(9), 986-987, 2006-09-05

    The Chemical Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018062759
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    03667022
  • データ提供元
    CJP書誌  J-STAGE 
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