期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 25, 页码 12675-12681出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm30460k
关键词
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资金
- National Science Foundation [0741973]
- American Chemical Society [51948-DNI3]
- Welch Foundation [F-1738]
Mesoporous Co3O4 with hexagonally ordered cylindrical channels has been synthesized by a single-step method using Pluronic soft micellar templates. The resulting material has been directly compared to isomorphous Co3O4 that was obtained via an established but laborious five-step nanocasting method. The soft template route employs only surfactant templates and a decane additive, which yields directly mesoporous Co3O4 by a gelling process in a carefully controlled basic (pH = 12.7) alcohol solution at 35 degrees C. The method is significantly faster and more economical than conventional nanocasting, and has similar overall reproducibility to the conventional multi-step route. The soft templated Co3O4 displays long-range ordered cylindrical microchannels with crystalline walls. Most importantly, it exhibits an unparalleled N-2 BET surface area of 367 m(2) g(-1).
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