Structural requirements of manganese oxides for methane oxidation: XAS ...
2018年8月5日 · EXAFS, Raman, XPS, O 2 -TPD-MS and CH 4 -TPR-MS studies indicate that the outstanding catalytic activity over α-MnO 2 is due to higher surface Mn concentration, more …
LaNiO3 as a precursor of Ni/La2O3 for CO2 reforming of CH4: …
2012年7月23日 · We have chosen four methods to prepare the LaNiO 3 precursor, characterizing them by several complementary techniques, studying the presence of the NiO amorphous …
Operando XAS Study of Pt-Doped CeO2 for the Nonoxidative …
2022年3月14日 · The proposed microkinetic model suggests the conversion of CH 4 on Pt single sites with CH 4 adsorption, the abstraction of the first • H radical from its neutral CH 4 …
On the contribution of X-ray absorption spectroscopy to explore ...
X-ray absorption spectroscopy (XAS) has proven to be a very useful technique in characterizing metal-based catalysts exposed to extreme operating conditions. The technique allows in situ …
Methanol and Acetic Acid from CH₄ and CO₂: The Role of Copper ...
2025年3月5日 · This study highlights the efficiency of Cu-FER catalysts with varying copper loadings in transforming carbon dioxide (CO2) and methane (CH4) into methanol or acetic …
Formation of CH4 at the Metal‐Support Interface of Pt/Al2O3 …
2022年3月6日 · We monitored the adsorbed species on Al 2 O 3 - and SiO 2 -supported Pt nanoparticle catalyst during hydrogenation of CO 2 and elucidated the CH 4 -formation sites at …
Advanced X-ray absorption spectroscopy for probing dynamics in …
2025年4月4日 · For instance, in 2020, Chen et al. introduced an operando X-ray absorption spectroscopy (XAS) approach using a quick-scanning monochromator to unveil the evolution …
甲烷干重整条件下 Mo2C 和 Mo2C/SiO2 的结构演化：形态和支撑 …
在此过程之后，通过原位 Mo K 边缘 X 射线吸收光谱 (XAS) 揭示了无支撑和有支撑 MoO3 的不同渗碳途径。 特别是，α-MoO3-nb 的渗碳通过 MoO2 进行，而 MoO3/SiO2 的渗碳通过形成高 …
CO2 加氢过程中 Pt/Al2O3 的金属-载体界面处 CH4 的形成：Operando XAS …
操作研究： X 射线吸收光谱和漫反射红外傅里叶变换光谱的组合研究揭示了在 Al 2 O 3负载的 Pt 催化剂上通过 CO 2氢化生产 CH 4的活性位点。
Ni supported on YSZ: XAS and XPS characterization and catalytic ...
在 250-500 °C 的温度范围内研究了 CO2 甲烷化的催化活性，发现 Ni 负载量最大的催化剂的 CO2 转化率和 CH4 选择性最高。 强调了活性和 CH4 选择性对 Ni 微晶尺寸的依赖性。