Nanotechnology V 1505Synthesis and Electrical Transport of Single-Crystal NH 4 V 3 O 8 Nanobelts. -Monoclinic single-crystalline nanobelts of the title compound with widths of 80-180 nm, thicknesses of 50-100 nm, and lengths up to tens of micrometers are synthesized at large scale from an aqueous solution of NH4VO3 containing HCl (autoclave, pH 1.5, 180°C, 36 h). The samples are characterized by XRD, FTIR spectroscopy, SEM, and TEM. The nanobelts exhibit nonlinear, symmetric current/voltage characteristics, with a conductivity of 0.1-1 S/cm at room temperature and a dielectric constant of about 130. It is anticipated that the novel nanobelts may have unique applications as nanoelectrodes or nanosensors. -(MAI, L. Q.; LAO, C. S.; HU, B.; ZHOU, J.; QI, Y. Y.; CHEN, W.; GU, E. D.; WANG*
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