2020年3月31日 · Moreover, the crystal growth of TiO 2 was affected by Mo doping via its interaction with oxygen vacancies and the Ti–O bond. The formation of Ti–O–Mo and Mo–Ti–O bonds were confirmed by XPS results. Phonon confinement, lattice strain and non-stoichiometric defects were validated through the Raman analysis.

2013年8月1日 · Mo-doping in TiO 2 narrows the band gap (from 3.19 eV of TiO 2 to 3.05 eV of Ti 0.97 Mo 0.03 O 2) and efficiently increases the optical absorption in visible range. The density functional theory (DFT) calculation of Ti 1- x Mo x O 2 ( x = 0.02) explains that Mo atom behaves as an abundant donor in TiO 2 and can narrow the band gap, since it has ...

2021年1月1日 · In this study, we present a titanium oxide and molybdenum oxide composite (TiO 2 -MoO x) as a support for the Ir catalyst (Ir/TiO 2 -MoO x). Compared to Ir black, carbon-supported Ir (Ir/C), and TiO 2 -supported Ir (Ir/TiO 2), Ir/TiO 2 -MoO x shows superior catalytic activity and durability for the OER.

16 小时之前 · Fig. 1: High-energy ultraviolet (a.k.a., UVC) irradiation (λ = 255 nm) transmission measurements on a 46 nm-thick polycrystalline TiO 2 film and a 500 μm-thick TiO 2 (100) single crystal as a ...

2023年6月1日 · Single-atom Mo facilitates the adsorption and activation of NH 3 to –NH 2. Oxygen vacancies could promote the oxidation of NO to NO 2. Herein, the single-atom Mo doped TiO 2 catalysts with abundant oxygen vacancies (OVs) were fabricated to get a deep insight into the roles of Mo species and OVs for selectivity catalytic reduction (SCR) of NO x.

2020年3月31日 · XRD 结果表明，在 750 °C 下，2 mol% Mo 掺杂有效地阻碍了 ART，产生了 67% 的锐钛矿和 33% 的金红石。 此外，通过与氧空位和 Ti-O 键的相互作用，Mo 掺杂会影响 TiO2 的晶体生长。 XPS 结果证实了 Ti-O-Mo 和 Mo-Ti-O 键的形成。 声子限制，通过拉曼分析验证了晶格应变和非化学计量缺陷。 DFT结果表明，在锐钛矿Ti位点置换掺杂Mo后，Mo氧化态为Mo6+，空Mo-s态出现在二氧化钛导带最小值处。 空的 Mo-d 状态与 DOS 图中的锐钛矿导带 …

2013年7月26日 · We present a STM/XPS/TPD/LEED study of the structural and electronic properties of Mo+Ti mixed oxide layers on TiO 2 (110), and of their interaction with water, methanol and ethanol. Several different preparation procedures were tested and layers with different degrees of Mo/Ti mixing were prepared.

2024年12月27日 · The incorporation of Mo single atoms effectively enhanced electron separation and migration within TiO 2, leading to a significant weakening of the N≡N bond. This research highlights the potential for predesigning TiO 2-based single-atom photocatalysts with tailored structures for efficient nitrogen fixation through photocatalysis. These ...

PL studies revealed that the electron–hole recombination process in Mo–TiO2 was exceptionally lower than that of TiO2 anatase and rutile. This was ascribed to introduction of 5s gap states below the CB of TiO2 by the Mo dopant.

Here we report a class of MoO nanocluster decorated on ultrathin Mo-doped TiO nanosheet (MoO /MoTiO) catalyst for efficiently facilitating the photocatalytic aerobic oxidation of sulfides.