XPS, AES and Auger parameter of Pd and PdO - ScienceDirect
1999年7月1日 · XPS experiments were performed using ESCALAB 200R spectrometer from Fisons Instruments, including a hemispherical analyzer adjusted at 50 eV pass energy. The measurements were performed with a MgKα non-monochromated X-ray source.
X-ray photoelectron spectroscopy study of Pd oxidation by RF …
2009年8月30日 · Detailed information about the electronic states of palladium and oxygen was obtained based on the XPS curve fitting analysis of Pd3d and Pd3p + O1s lines. The results showed that Pd oxidation by oxygen plasma was different …
ELS and XPS study of Pd/PdO methane oxidation catalysts
2003年1月31日 · Electron energy loss spectra (ELS) and X-ray photoelectron spectroscopy (XPS) data obtained from palladium powder catalysts used for complete methane oxidation have been obtained in this study in order to gain information about the Pd chemical state.
Engineering catalyst supports to stabilize PdO - Nature
2021年10月18日 · We used surface sensitive X-ray photoelectron spectroscopy (XPS) to reveal the differences in the Pd, Pt and Ce species on the 1Pd/2Pt@CeO 2 catalyst compared to the reference (1Pd + 2Pt)/CeO 2...
Pd 和 PdO 的 XPS、AES 和俄歇参数,Journal of Electron …
Pd 和 PdO 的 Pd3d5/2 结合能分别为 335.4 eV 和 336.8 eV。 虽然最广泛使用的 M4,5 VV 俄歇结构对于纯 Pd 是相当明确的，在 327.5 eV 的动能处测得峰值最大值，但 PdO 的情况并非如此。
Pd and Pd@PdO core–shell nanoparticles supported on Vulcan …
2019年7月25日 · STEM-EELS and XPS data evidenced the presence of PdO in the periphery of the particles, thus forming core–shell Pd@PdO nanostructures. Electrochemical evaluation during cyclic voltammetry established a well-defined transition-redox characteristics corresponding to …
Near ambient pressure XPS investigation of hydrous palladium …
2021年6月2日 · In this study, we conducted in situ near ambient pressure-x-ray photoelectron spectroscopy (NAP-XPS) in gas conditions with water and oxygen for hydrous Pd oxide, which is also known as palladium hydroxide (Pd (OH) 2) and it is the key component of the Pearlman's catalyst widely used for organic reactions.
固体和真空沉积、氧化和非氧化钯的 XPS 研究 - X-MOL
1995年5月1日 · xps 测量中光电效应引起的不同充电可以解释固体和薄膜钯表面 pdo 化学位移的差异。 与固体钯相比，对于薄膜钯观察到的较小充电效应表明与（较粗糙的）薄膜钯有更强的氧键合。
XPS study of the palladium/oxygen interaction at 0.4 mbar O2 pressure. In comparison with the literature briefly dis-cussed in Part I [1], this publication presents one of the first data on in situ palladium oxidation. The in situ investiga-tion allows us to propose that the key step in palladium oxidation is formation of small PdO clusters ...
Defying the oxidative-addition prerequisite in cross-coupling
4 天之前 · X-ray photoelectron spectroscopy (XPS) measurements were carried out in a custom-designed ultrahigh-vacuum system with a base pressure lower than 2 × 10 −10 mbar. Al Kα (hν = 1486.7 eV) was ...