XPS study of WC formation process - ScienceDirect
1986年10月2日 · In the present study, the surface composition and chemical bonding state of prepared WC are examined in detail with X-ray photoelectron spectroscopy (XPS). The results …
XPS study of surface chemistry of tungsten carbides nanopowders ...
2015年6月1日 · X-ray photoelectron spectroscopy (XPS) has been employed to characterize the surface composition and bonding of the tungsten carbides nanopowders produced through a …
Surface Chemistry of WC Powder Electrocatalysts Probed In situ with NAP-XPS
6 天之前 · In this work we use electrochemical X-ray photoelectron spectroscopy (EC-XPS) to revisit the surface chemistry of WC powder electrodes in alkaline electrolyte in-situ and under …
A novel WC–W2C composite synthesis by arc plasma melt cast
2021年2月26日 · WC–W 2 C composites of three different compositions (0, 5 and 16 wt% W) have been prepared by arc plasma melt-cast technique and their microstructural and …
Spectroscopic evaluation of tungsten carbide-titanium carbide composite ...
2020年12月1日 · XPS, micro Raman and FTIR spectroscopy methods have been used to evaluate WC-TiC composite in 1-15 wt% TiC range. C in 5-15 wt% TiC range is detected by …
XPS表征的部分还原WO3、WO2和WC+O2或W+O2的多表面结构 …
报告了 WO3、WO2、W (0)、WC、W (0) + O2 和 WC + O2 在不同实验条件下的 XPS。 在相对纯的 W (0) 和 WC 表面上观察到产生甲烷的主要产品的 2-甲基戊烷的广泛氢解反应。 在 WO2 …
氧化钨_碳SPS原位合成WC硬质合金的XPS研究 - 豆丁网
2016年1月27日 · 样品敲碎后进行 xps 分析。脆性的 wc 样品微裂纹主 . 要沿着结构缺陷密度大、断裂表面能较低的晶界扩展， 在敲碎样品的过程中，新鲜超细的 wc 晶粒裸露出来， 形成了 …
Surface Chemistry of WC Powder Electrocatalysts Probed In situ with NAP-XPS
Tungsten carbide (WC) is a renowned compound catalyst material for electrochemical water splitting, and its high electrocatalytic activity towards the hydrogen evolution reaction (HER) …
Carbon Spectra – WC – Tungsten Carbide - XPS Database
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 …
XPS spectra of WC + W 16 wt% sample: a W4f level and b C1s level
Download scientific diagram | XPS spectra of WC + W 16 wt% sample: a W4f level and b C1s level from publication: A novel WC–W2C composite synthesis by arc plasma melt cast …
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