Hydrothermal synthesis of tetragonal BaTiO3 nanotube arrays with high dielectric performance.

Hydrothermal synthesis of tetragonal BaTiO3 nanotube arrays with high dielectric performance.

Journal of nanoscience and nanotechnology (2014-04-18)

Liming Wang, Xiangyun Deng, Jianbao Li, Xinxing Liao, Guoqing Zhang, Chunpeng Wang, Kuifan Su

摘要

Tetragonal Barium titanate (BaTiO3) nanotube arrays have been prepared using the template-assisted hydrothermal method combined with an annealing process. The in-situ chemical conversion of TiO2 nanotube array templates ensured that BaTiO3 maintained the morphology of the nanotube architectures. Moreover, X-ray diffraction and Raman spectrum characterization were used to confirm that the BaTiO3 nanotube arrays had a tetragonal phase after the use of a simple annealing technique. Typical hysteresis loops showed their ferroelectricity, with the remanent polarization and coercive fields being 2.57 microC/cm2 and 2.52 kV/cm, respectively. The relative dielectric constant of the tetragonal BaTiO3 nanotube arrays reached up to 1000 and the dielectric loss was as low as 0.02 at 1 kHz at room temperature.

材料

货号

品牌

产品描述

467634

Sigma-Aldrich

钛酸钡 (IV), nanopowder (cubic crystalline phase), <100 nm particle size (BET), ≥99% trace metals basis

208108

Sigma-Aldrich

钛酸钡 (IV), powder, <3 μm, 99%

745952

Sigma-Aldrich

钛酸钡 (IV), nanopowder (cubic), 50 nm (SEM), 99.9% trace metals basis

338842

Sigma-Aldrich

钛酸钡 (IV), powder, <2 μm, 99.5% trace metals basis

GF16031843

钛, mesh, 100x100mm, nominal aperture 0.19mm, wire diameter 0.23mm, 60x60 wires/inch, open area 20%, twill weave

GF29374005

钛, mesh, 100x100mm, nominal aperture 4.3mm, wire diameter 1.5mm, 4.4x4.4 wires/inch, open area 94%, platinized diamond mesh

348864

Sigma-Aldrich

钛, wire, diam. 0.5 mm, 99.99% trace metals basis

GF46592949

钛, wire, straight, 1000mm, diameter 1.0mm, as drawn, 99.6+%

GF31127712

钛, rod, 10mm, diameter 50mm, 99.99+%

GF14990935

钛, tube, 1000mm, outside diameter 10.3mm, inside diameter 8.7mm, wall thickness 0.8mm, annealed, 99.6+%

GF62977540

钛, tube, 200mm, outside diameter 2.03mm, inside diameter 1.63mm, wall thickness 0.2mm, annealed, 99.6+%

GF86399106

钛, tube, 500mm, outside diameter 1.6mm, inside diameter 1.2mm, wall thickness 0.2mm, hard, 99.6+%

GF13900205

钛, tube, 100mm, outside diameter 0.51mm, inside diameter 0.35mm, wall thickness 0.08mm, annealed, 99.6+%

GF49264713

钛, tube, 200mm, outside diameter 1.6mm, inside diameter 1.2mm, wall thickness 0.2mm, hard, 99.6+%

GF43519945

钛, wire reel, 2m, diameter 1.0mm, as drawn, 99.99+%

GF96834493

钛, rod, 1000mm, diameter 5mm, annealed, 99.6+%

GF95731960

钛, tube, 500mm, outside diameter 3.0mm, inside diameter 1.5mm, wall thickness 0.75mm, annealed, 99.6+%

GF52005596

钛, tube, 500mm, outside diameter 9.5mm, inside diameter 8.2mm, wall thickness 0.65mm, annealed, 99.6+%

GF34106363

钛, rod, 1000mm, diameter 1.5mm, annealed, 99.6+%

GF04311638

钛, rod, 100mm, diameter 6mm, annealed, 99.6+%

GF58567067

钛, rod, 100mm, diameter 5mm, annealed, 99.6+%

GF42959661

钛, tube, 1000mm, outside diameter 10mm, inside diameter 8mm, wall thickness 1.0mm, annealed, 99.6+%

GF90963928

钛, rod, 25mm, diameter 50mm, 99.99+%

GF76772391

钛, rod, 100mm, diameter 10mm, annealed, 99.6+%

GF25880485

钛, tube, 100mm, outside diameter 6.35mm, inside diameter 5.53mm, wall thickness 0.41mm, annealed, 99.6+%

GF32270015

钛, tube, 200mm, outside diameter 2.03mm, inside diameter 1.55mm, wall thickness 0.24mm, annealed, 99.6+%

GF16213553

钛, wire reel, 10m, diameter 0.125mm, annealed, 99.6+%

GF17799777

钛, rod, 100mm, diameter 40mm, annealed, 99.6+%

GF66991179

钛, rod, 100mm, diameter 2mm, as drawn, 99.99+%

GF39040084

钛, rod, 100mm, diameter 16mm, annealed, 99.6+%