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 ...

XPS Spectra Platinum (Pt) Compounds The XPS Spectra section provides raw and processed survey spectra, chemical state spectra, BE values, FWHM values, and overlays of key spectra. Atom% values from surveys are based on sample, as received, and Scofield cross-sections. Atom% values are corrected for IMFP and PE.

2025年1月13日 · The reaction between volatile platinum and rhodium gas species and bulk materials (alloys or oxides) is of high practical importance in the chemical process industry. Herein, an X-ray photoelectron spectroscopy (XPS) study has been conducted to understand how PtO2(g) and RhO2(g) react with LaNiO3 (LNO) thin

2024年2月1日 · In this study, boron nitride nanotubes (BNNTs) decorated PtO 2 nanoparticles (NPs) were used to form a heterojunction for enhancing the room temperature (RT, 28 °C) gas sensing towards dry NH 3 gas varying from 0.05 to 10 ppm. The BNNT was synthesized by boron oxide-assisted chemical vapor deposition (BOCVD).

2017年9月5日 · In a NAP XPS study 13, α-PtO 2 was observed only at 720 K. More important than thermodynamic stability is the question of stability under catalytic conditions.

The XPS spectrum of Pt4f7/2 and Pt4f5/2 is fitted with the binding energies of 75.5 and 78.5 eV, respectively, as shown in Figure 5b, which has been found for Pt 4+ ionization, as reported ...

2025年1月13日 · In this work, we use X-ray photoelectron spectroscopy (XPS) to investigate the chemical state of the surface as well as the incorporation and diffusion of platinum and rhodium into LNO (100) films, after reaction with gaseous PtO 2 and RhO 2.

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.

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 …

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