Low temperature CH4 oxidation was studied on 2 nm gold nanoparticles supported on various metaloxides. The differences in reaction rates for the different systems suggest that the support material has an effect on the activity. From TEM analysis, we found that the gold particles were stable in size during the reaction. In addition to full oxidation to CO2, traces of C2H6 were detected when Au/TiO2 was used, indicating limited partial CH4 oxidation. TiO2 was found to be the best support for gold nanoparticles both in terms of activity and gold particle stability.

中文翻译：

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不同负载的 2 nm Au 纳米颗粒上的低温甲烷氧化

在各种金属氧化物上负载的 2 nm 金纳米颗粒上研究了低温 CH4 氧化。不同系统反应速率的差异表明载体材料对活性有影响。从 TEM 分析中，我们发现金颗粒在反应过程中尺寸稳定。除了完全氧化成 CO2 之外，使用 Au/TiO2 时还检测到痕量 C2H6，表明 CH4 的部分氧化有限。在活性和金颗粒稳定性方面，发现 TiO2 是金纳米颗粒的最佳载体。