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  • A general in situ hydrothermal rolling-up formation of one-dimensional, single-crystalline lead telluride nanostructures.

A general in situ hydrothermal rolling-up formation of one-dimensional, single-crystalline lead telluride nanostructures.

Small (Weinheim an der Bergstrasse, Germany) (2006-12-29)
Lizhi Zhang, Jimmy C Yu, Maosong Mo, Ling Wu, Kwan Wai Kwong, Quan Li
RESUMO

In this study we demonstrate that one-dimensional (1D) nanostructured lead telluride (PbTe) can be synthesized in a hydrothermal reaction between lead foil and tellurium powder. The resulting materials were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The formation of the 1D structure can be explained by an in situ hydrothermal rolling-up mechanism whereby PbTe is formed hydrothermally and deposited on the lead substrate. The lead underneath the PbTe layer is then selectively etched by a cetyltrimethylammonium bromide solution, thus allowing the PbTe to roll up into 1D structures. This method can be extended to prepare other 1D tellurides, including CdTe, Cu(2)Te, and Ag(2)Te.

MATERIAIS
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Lead, foil, 150x150mm, thickness 0.5mm, as rolled, 99.95%
Lead, foil, 50x50mm, thickness 0.25mm, as rolled, 99.95%
Lead, foil, 50x50mm, thickness 0.1mm, as rolled, 99.95%
Lead, foil, 100x100mm, thickness 3.0mm, as rolled, 99.95%
Lead, foil, 100x100mm, thickness 3.0mm, as rolled, 99.99+%
Lead, foil, 100x100mm, thickness 6.0mm, as rolled, 99.99+%
Lead, foil, 150x150mm, thickness 0.125mm, as rolled, 99.95%
Lead, foil, 150x150mm, thickness 0.15mm, as rolled, 99.95%
Lead, foil, 150x150mm, thickness 0.1mm, as rolled, 99.95%
Lead, foil, 150x150mm, thickness 0.25mm, as rolled, 99.95%
Lead, foil, 150x150mm, thickness 0.55mm, as rolled, 99.999%
Lead, foil, 150x150mm, thickness 1.0mm, as rolled, 99.5%
Lead, foil, 150x150mm, thickness 1.0mm, as rolled, 99.95%
Lead, foil, 250x250mm, thickness 3.0mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.125mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.125mm, as rolled, 99.99+%
Lead, foil, 25x25mm, thickness 0.15mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.1mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.25mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.25mm, as rolled, 99.99+%
Lead, foil, 25x25mm, thickness 0.55mm, as rolled, 99.999%
Lead, foil, 25x25mm, thickness 0.5mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 0.5mm, as rolled, 99.99+%
Lead, foil, 25x25mm, thickness 1.0mm, as rolled, 99.5%
Lead, foil, 25x25mm, thickness 1.0mm, as rolled, 99.95%
Lead, foil, 25x25mm, thickness 1.0mm, as rolled, 99.99+%
Lead, foil, 25x25mm, thickness 1.5mm, as rolled, 99.99+%
Lead, foil, 25x25mm, thickness 3.0mm, as rolled, 99.99+%
Lead, foil, 300x300mm, thickness 0.125mm, as rolled, 99.95%
Lead, foil, 300x300mm, thickness 0.15mm, as rolled, 99.95%

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