Fe-Doped Trititanate Nanotubes: Formation, Optical and Magnetic Properties, and Catalytic Applications

@article{citeulike:1644698, abstract = {Abstract: We have synthesized crystalline Fe-doped trititanate nanotubes via a wet-chemistry method. The products were characterized by high-resolution transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDS), in-situ X-ray diffraction (XRD), ultraviolet-visible spectrophotometry (UV-vis), synchrotron infrared (IR) spectroscopy, and temperature-dependent magnetometry. The Fe-doped trititanate nanotubes are about 8 nm in diameter and up to 1 m long. EDS revealed that the Fe-doping ratio is about 0.5\%, while IR and UV-vis spectra reveal the effects of doping. In-situ XRD experiments demonstrate the transformation of the trititanate to titania phase under a reductive atmosphere. The Fe-doped trititanate nanotubes exhibited noticeable catalytic activity in the water-gas-shift reaction. Magnetic measurements indicate that the Fe-doped trititanate nanotubes comprise a mixture of ferromagnetic and paramagnetic phases.}, address = {Center for Functional Nanomaterials and Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, and Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Rd, NW, Washington, DC 20015}, author = {Han, W. Q. and Wen, W. and Yi, D. and Liu, Z. and Maye, M. M. and Lewis, L. and Hanson, J. and Gang, O. }, citeulike-article-id = {1644698}, doi = {http://dx.doi.org/10.1021/jp074381f}, journal = {J. Phys. Chem. C}, keywords = {catalysis}, month = {September}, posted-at = {2007-09-11 16:53:10}, priority = {2}, title = {Fe-Doped Trititanate Nanotubes: Formation, Optical and Magnetic Properties, and Catalytic Applications}, url = {http://dx.doi.org/10.1021/jp074381f}, year = {2007} }

TY - JOUR ID - citeulike:1644698 L3 - citeulike-article-id:1644698 TI - Fe-Doped Trititanate Nanotubes: Formation, Optical and Magnetic Properties, and Catalytic Applications JF - J. Phys. Chem. C AD - Center for Functional Nanomaterials and Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, and Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Rd, NW, Washington, DC 20015 N2 - Abstract: We have synthesized crystalline Fe-doped trititanate nanotubes via a wet-chemistry method. The products were characterized by high-resolution transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDS), in-situ X-ray diffraction (XRD), ultraviolet-visible spectrophotometry (UV-vis), synchrotron infrared (IR) spectroscopy, and temperature-dependent magnetometry. The Fe-doped trititanate nanotubes are about 8 nm in diameter and up to 1 m long. EDS revealed that the Fe-doping ratio is about 0.5%, while IR and UV-vis spectra reveal the effects of doping. In-situ XRD experiments demonstrate the transformation of the trititanate to titania phase under a reductive atmosphere. The Fe-doped trititanate nanotubes exhibited noticeable catalytic activity in the water-gas-shift reaction. Magnetic measurements indicate that the Fe-doped trititanate nanotubes comprise a mixture of ferromagnetic and paramagnetic phases. KW - catalysis AU - Han, WQ AU - Wen, W AU - Yi, D AU - Liu, Z AU - Maye, MM AU - Lewis, L AU - Hanson, J AU - Gang, O PY - 2007/09/08/ UR - http://dx.doi.org/10.1021/jp074381f ER -