2017年9月14日 · The crystal structure of the synthesized Pt/PtO 2 was characterized by X-ray diffraction (XRD). Fig. 3 a shows: (i) the XRD pattern of fcc structured Pt (JCPDS Card No. 01-1194) (the strong (200) peak in the diffraction pattern indicates that the Pt nanoparticles align flat on the substrate [21] , [22] ); and (ii) together with characteristic ...

2020年8月5日 · The thermal stability of PtO 2 and dislocation density within Pt wire were investigated using differential scanning calorimetry (DSC), Thermogravimetry (TG), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) to understand and evaluate the stability of standard platinum resistance thermometer (SPRT), which is the interpolation ...

Pt oxide thin films are prepared by sputtering Pt target in an atmosphere containing Ar and O2 gases. Polycrystalline PtO and ®-PtO2 films are obtained in O2 flow ratio regions of 30–50% and 80–100%, respectively, at a substrate temperature of 300±C.

2001年12月3日 · In the present study, Pt-PtO x thin films were sputter deposited at various substrate temperatures up to 700°C with varying O 2 /Ar ratio. And the films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and d.c. four probe resistivity measurement.

2023年1月9日 · The X-ray diffraction (XRD) pattern of a thin film prepared by casting the PtO x NS colloid onto a glass plate exhibited a series of diffraction peaks with d = 1.67, 0.83, 0.55, and 0.42 nm,...

2012年2月1日 · The result shows that PtO is a promising candidate for use as a catalyst, in sensors, as a photo-cathode in water electrolysis, for thermal decomposition of inorganic salt and fuel cells.

It is observed that all the XRD diffraction peaks can be perfectly indexed to the tetragonal PTO (JCPDS No. 06-0452, P4mm space group, lattice constant a = 0.390 nm and c = 0.415 nm), and no...

摘要 使用差示扫描量热法 (DSC)、热重法 (TG)、X 射线光电子能谱 (XPS) 和 X 射线衍射 (XRD) 研究 PtO2 的热稳定性和 Pt 线内的位错密度，以了解和评估 Pt 线的稳定性。 标准铂电阻温度计（SPRT），是1990年国际温标（ITS-90）中的插值仪器。 通过分析PtO2的热稳定性，结果表明PtO2的分解与热过程密切相关。 PtO2 在空气中低于 500°C 不分解，但在 550°C 以上开始分解成 PtO 和 Pt。 PtO2 的分解速率在 620 °C 时最快，但在此温度下分解不一定完全。 PtO 和 PtO2 …

2017年5月29日 · In the present paper, we demonstrate that this heightened sensitivity enables the same benchtop instrument to detect the spontaneous, ambient oxidation of ultra-small (1–2 nm) Pt nanoparticles, previously observed by XRD only at synchrotron sources.

XRD spectra of PTO film synthesized with adding different concentrations of nanoplates (a); Enlarged part of 19~35o in (a) (b) and (100) orientation ratio of PTO films as a function of nanoplates concentration (c)