2007年4月1日 · In this study, we used the advanced laser irradiation technique and successfully reserved H-Ta 2 O 5 at room temperature. This enabled us to use transmission electron microscopy (TEM) to decode the crystal structure of pure H …

2021年2月15日 · Hexagonal tantalum pentoxide (δ -Ta 2 O 5) epitaxial films were successfully prepared on Y-stabilized ZrO2 (YSZ) (111) substrates by metalorganic chemical vapor deposition. The crystal structure and optical characteristics of the deposited films as a function of the substrate temperature were investigated.

2023年10月25日 · Based on particle swarm optimization (PSO) algorithm and density functional theory (DFT) calculations, we identify a stable triclinic crystal structure of Ta 2 O 5 (named as γ 1 -Ta 2 O 5) at atmospheric pressure whose unit cell contains one formula unit (Z = 1).

When evaluated as anodes for LIBs, Ta2O5@C-Ar with carbon coating and oxygen vacancies exhibits superior lithium storage properties including remarkably high reversible capacity, high rate ...

2007年2月21日 · The microstructure of Ta 2 O 5 thin films, deposited onto Si substrates by atomic layer deposition (ALD), was investigated, using in situ transmission electron microscopy (TEM). As-deposited amorphous films crystallize as the orthorhombic phase L-Ta 2 …

2019年12月6日 · In this work, we aimed to obtain Ta 2 O 5 -doped lead-free 0.675BFO–0.3BTO–0.025LFO– x mol% Ta 2 O 5 (x = 0, 0.25, 0.50, 0.75, 1.0, 1.25) multiferroic ceramics by solid-state reaction and to improve their ferromagnetic properties. In addition, the effects of Ta 2 O 5 on structure, dielectric, ferroelectric, and ME properties were also evaluated.

2016年7月25日 · 摘要 采用超声辅助法合成了纳米Ta2O5。制备的纳米颗粒通过 XRD、拉曼光谱和 SEM 和 TEM 形态学表征。从XRD图中，观察到正交相Ta2O5。拉曼研究证实了在 613 cm-1 处存在 Ta O。TEM 图像显示平均粒径约为 21 nm。Ta2O5 纳米粒子的带隙是通过 UV-DRS 进行的，发现为 3.12 eV。

2007年4月1日 · Mixed Ta2O5-TiO2 binary system was studied by a combination of differential thermal analysis (DTA), scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), x-ray diffraction (XRD...

透射电子显微镜（TEM）图像显示了涂覆在40-60 nm碳球上的Ta2O5纳米棒的粒径。 Ta2O5 / C纳米棒复合材料和纯净的Ta2O5纳米棒的光学性质通过紫外可见吸收光谱法测定，其带隙分别为265（4.7 eV）和260 nm（4.8 eV）。

2022年6月1日 · Another important particularity was observed after applying X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis to obtain samples as using the calcination temperature of 300–400°C resulted in the formation of amorphous Ta 2 O 5, whereas higher temperature led to its full crystallization (Fig. 3 (c–e)).