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2007年 第1卷 第1期

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《化学科学与工程前沿（英文）》 >> 2007年 第1卷 第1期 doi: 10.1007/s11705-007-0011-y

Large-scale synthesis of isolated Mn2O3 nanotube/fiber with ferric nitrate as catalyst

School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;

发布日期： 2007-03-05
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Isolated MnO nanotubes and nanofibers were prepared very easily at a large scale with the liquid-phase catalysis method. The MnO nanotubes had dimensions of 30 50 nm (exterior diameter) and 0.2 1.0 ?m (length), approximately. The O nanofibers had dimensions of 10 30 nm (diameter) and 0.4 2.0 ?m (length), approximately. Nano-O with different microstructures including nanotubes, nanofibers and nanoparticles could be selectively synthesized by controlling the contents and proportions of potassium permanganate and ferric nitrate. Ferric nitrate was an ideal catalyst for the preparation of O nanotube/fiber. When cobalt nitrate or nickel nitrate was used as catalyst, only amorphous nano-O was synthesized. X-ray diffraction (XRD) result shows that the O nanotube has a crystalline structure different from o-O, t-O, h-O and ?-O.

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